Close

Close is an inside-sales CRM with calling, email, SMS, and WhatsApp built in. The Close API exposes leads, contacts, opportunities, tasks, activities (calls, emails, SMS, meetings, notes), pipelines, custom objects, sequences, smart views, scheduling, phone numbers, reporting, and webhooks for sales automation.

Close publishes 64 API contracts indexed on the APIs.io network, including Activities API, Activities.calls API, Activities.creations API, and 61 more. Tagged areas include CRM, Sales Engagement, Inside Sales, Calling, and SMS.

The Close catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Close’s developer surface includes authentication, documentation, API reference, pricing, engineering blog, support, changelog, and 45 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

78.3/100 exemplar ▬ flat Agent 60/100 agent ready Heartbeat 87/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

2 published contracts 1 MCP Servers 5 Agent Skills 10 Features

CRM Sales EngagementInside SalesCalling SMS WhatsApp Sales Automation Pipeline Management AI Agents MCP Webhook Software-as-a-Service

What this lets a business do 3

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Sales Management

BC-410

Sequencesactivities.lead_status_changesactivities.opportunity_status_changeslead_statusesleadsopportunities

POST /opportunity/ POST /lead/ POST /activity/status_change/opportunity/ GET /pipeline/

Customer Relationship Management

BC-420

contacts

Cybersecurity Management

BC-620

roles

GET /role/

What people ask Close 64

The questions people put to an LLM, and the jobs they hand an agent, that Close's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

Close Scheduling Links API List my personal scheduling links “Which personal booking links do I have set up in Close?” Create a personal scheduling link “How do I add a new personal booking link for my meetings?” Upsert a scheduling link from an OAuth app “Can my OAuth integration create or update a user's scheduling link by its source id?” Delete an OAuth app's scheduling link by source id “Can my OAuth app remove a scheduling link it created using its own source id?”

Close Sequences API List email sequences “What sequences have we set up for automated outreach?” Create an outreach sequence “How do I build a new multi-step outreach sequence in Close?” Get one sequence's details “Which steps are in a particular sequence?” Update a sequence's steps or settings “If I leave out steps when editing a sequence, are they removed?”

Close Custom Fields.shared API List shared custom fields “Which custom fields are shared across leads, contacts and activities?” Create a shared custom field “How do I create a custom field that can be reused on several object types?” Get a shared custom field “Where do I see the type and associations of one shared field?” Rename or edit a shared custom field “Can I change the type of a shared custom field after creating it?”

Close Exports API List all data exports “Which exports has my organization run, of any kind?” List lead exports “What lead exports have been run recently?” Export leads matching a search “How do I export leads that match a search query to a file?” Check a lead export's status “Is my lead export finished yet?”

Close Reporting API Run an activity metrics report “How many calls and emails did my team log per week last quarter?” List metrics for activity reports “What predefined metrics can I use in an activity report?” Graph arbitrary metrics with Explorer “Can I chart opportunity value by user over time like the Explorer view?” Get pipeline funnel stage metrics “How many opportunities moved through each stage of my pipeline funnel?”

Close Playbooks API List call playbooks “Which call playbooks does our team have?” Create a call playbook “How do I create a playbook with outcomes and custom fields?” Get a single playbook “What outcomes and fields are in a specific playbook?” Edit a playbook “Can I change which outcomes a playbook uses?”

Close Blocked Phone Numbers API List blocked phone numbers “Which phone numbers are blocked in my organization?” Block a phone number “How do I stop a phone number from calling us or being called?” View call blocking settings “Are anonymous inbound calls currently rejected for my organization?” Toggle rejecting anonymous inbound calls “Can I automatically reject calls from anonymous or hidden numbers?”

Close Comments API List comments on an object or thread “How can I see all comments left on a lead?” Add a comment to a record “How do I leave a comment on a lead or activity?” Get a single comment “Why do I get a 404 fetching a comment I know exists?” Edit a comment's text “Can I edit a comment someone else wrote?”

Close Groups API List user groups “What user groups exist in my organization?” Create a user group “How do I create a new team group?” Add a user to a group “Can I add a teammate to an existing group?” Remove a user from a group “Can I take someone out of a group without removing them from the organization?”

Close Send As API List send-as permissions “Who is allowed to send emails as me?” Let another user send as you “How do I let a teammate send emails as me?” Revoke send-as for a specific user “Can I revoke send-as permission by naming the user instead of the association?” Allow and disallow many send-as users “Can I update who can send as me for many users in one request?”

Close Memberships API Add a user to the organization “How do I provision a new user into my organization by email?” Bulk update several memberships “Can I change the role of many users at once?” Update one user's membership “Can I change a single user's role or default caller ID?” Deactivate a user's membership “How do I remove a user from my organization?”

Close Leads API List leads “How can I pull every lead in my Close account?” Create a lead “Can I create a lead with its contacts and address in one call?” Merge two duplicate leads “How do I merge a duplicate lead into another one?” Get a single lead “Where can I see everything about one lead?”

Showing 12 of 64 APIs with phrasing — see every API.

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 78.3/100 · exemplar

Contract Quality 12.2 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 14.0 / 15

Operational Transparency 9.5 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 6.6 / 15

Create-or-Update Ergonomics 3.3 / 10

Agent readiness — 60/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 3 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Telecommunications regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

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<a href="https://apis.io/providers/close/"><img src="https://apis.io/badge/close/card.svg" alt="Close on APIs.io — Kin Score by API Evangelist"></a>

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter
Well-Known Catalog +4 pts — common[].type includes WellKnown, APICatalog, or api-catalog

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 64.8 — up to +8.8 composite points
Contract Governance scores 31.8 — up to +8.2 composite points
Developer Ergonomics scores 66.1 — up to +6.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/close/apis.yml: open an issue on github.com/api-evangelist/close to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
AI Agents (A2A agent cards)	covered	25.9	1	-
Salesforce AppExchange (CRM, outbound, business-process automation)	covered	25.9	1	-
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	covered	25.9	1	-
HubSpot App Marketplace (CRM add-ons, outbound, performance marketing, chat)	covered	25.9	1	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 5

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 64

Individual APIs this provider publishes, each with its own machine-readable definition.

Close Activities API

The activities API from Close — 1 operation(s) for activities.

Close Activities.calls API

The activities.calls API from Close — 2 operation(s) for activities.calls.

Close Activities.creations API

The activities.creations API from Close — 2 operation(s) for activities.creations.

Close Activities.custom Activities API

The activities.custom_activities API from Close — 2 operation(s) for activities.custom_activities.

Close Activities.email Threads API

The activities.email_threads API from Close — 2 operation(s) for activities.email_threads.

Close Activities.emails API

The activities.emails API from Close — 2 operation(s) for activities.emails.

Close Activities.form Submissions API

The activities.form_submissions API from Close — 2 operation(s) for activities.form_submissions.

Close Activities.import Updates API

The activities.import_updates API from Close — 2 operation(s) for activities.import_updates.

Close Activities.lead Merges API

The activities.lead_merges API from Close — 2 operation(s) for activities.lead_merges.

Close Activities.lead Status Changes API

The activities.lead_status_changes API from Close — 2 operation(s) for activities.lead_status_changes.

Close Activities.meetings API

The activities.meetings API from Close — 3 operation(s) for activities.meetings.

Close Activities.notes API

The activities.notes API from Close — 2 operation(s) for activities.notes.

Close Activities.opportunity Status Changes API

The activities.opportunity_status_changes API from Close — 2 operation(s) for activities.opportunity_status_changes.

Close Activities.sms API

The activities.sms API from Close — 2 operation(s) for activities.sms.

Close Activities.task Completions API

The activities.task_completions API from Close — 2 operation(s) for activities.task_completions.

Close Activities.whatsapp Messages API

The activities.whatsapp_messages API from Close — 2 operation(s) for activities.whatsapp_messages.

Close Blocked Phone Numbers API

The blocked_phone_numbers API from Close — 3 operation(s) for blocked_phone_numbers.

Close Bulk Actions.delete API

The bulk_actions.delete API from Close — 2 operation(s) for bulk_actions.delete.

Close Bulk Actions.edit API

The bulk_actions.edit API from Close — 2 operation(s) for bulk_actions.edit.

Close Bulk Actions.email API

The bulk_actions.email API from Close — 2 operation(s) for bulk_actions.email.

Close Bulk Actions.sequence Subscriptions API

The bulk_actions.sequence_subscriptions API from Close — 2 operation(s) for bulk_actions.sequence_subscriptions.

Close Comments API

The comments API from Close — 4 operation(s) for comments.

Close Connected Accounts API

The connected_accounts API from Close — 2 operation(s) for connected_accounts.

Close Contacts API

The contacts API from Close — 2 operation(s) for contacts.

Close Custom Activity Types API

The custom_activity_types API from Close — 2 operation(s) for custom_activity_types.

Close Custom Field Schemas API

The custom_field_schemas API from Close — 1 operation(s) for custom_field_schemas.

Close Custom Fields.activity API

The custom_fields.activity API from Close — 2 operation(s) for custom_fields.activity.

Close Custom Fields.contact API

The custom_fields.contact API from Close — 2 operation(s) for custom_fields.contact.

Close Custom Fields.custom Object API

The custom_fields.custom_object API from Close — 2 operation(s) for custom_fields.custom_object.

Close Custom Fields.lead API

The custom_fields.lead API from Close — 2 operation(s) for custom_fields.lead.

Close Custom Fields.opportunity API

The custom_fields.opportunity API from Close — 2 operation(s) for custom_fields.opportunity.

Close Custom Fields.shared API

The custom_fields.shared API from Close — 4 operation(s) for custom_fields.shared.

Close Custom Object Types API

The custom_object_types API from Close — 2 operation(s) for custom_object_types.

Close Custom Objects API

The custom_objects API from Close — 2 operation(s) for custom_objects.

Close Dialers API

The dialers API from Close — 2 operation(s) for dialers.

Close Email Templates API

The email_templates API from Close — 3 operation(s) for email_templates.

Close Events API

The events API from Close — 2 operation(s) for events.

Close Exports API

The exports API from Close — 6 operation(s) for exports.

Close Field Enrichment API

The field_enrichment API from Close — 1 operation(s) for field_enrichment.

Close Files API

The files API from Close — 1 operation(s) for files.

Close Forms API

The forms API from Close — 2 operation(s) for forms.

Close Groups API

The groups API from Close — 4 operation(s) for groups.

Close Integration Links API

The integration_links API from Close — 2 operation(s) for integration_links.

Close Lead Statuses API

The lead_statuses API from Close — 2 operation(s) for lead_statuses.

Close Leads API

The leads API from Close — 3 operation(s) for leads.

Close Memberships API

The memberships API from Close — 3 operation(s) for memberships.

Close Opportunities API

The opportunities API from Close — 2 operation(s) for opportunities.

Close Opportunity Statuses API

The opportunity_statuses API from Close — 2 operation(s) for opportunity_statuses.

Close Organizations API

The organizations API from Close — 1 operation(s) for organizations.

Close Outcomes API

The outcomes API from Close — 2 operation(s) for outcomes.

Close Phone Numbers API

The phone_numbers API from Close — 3 operation(s) for phone_numbers.

Close Pipelines API

The pipelines API from Close — 2 operation(s) for pipelines.

Close Playbooks API

The playbooks API from Close — 4 operation(s) for playbooks.

Close Reporting API

The reporting API from Close — 8 operation(s) for reporting.

Close Roles API

The roles API from Close — 2 operation(s) for roles.

Close Scheduling Links API

The scheduling_links API from Close — 8 operation(s) for scheduling_links.

Close Send As API

The send_as API from Close — 3 operation(s) for send_as.

Close Sequences API

The sequences API from Close — 4 operation(s) for sequences.

Close Smart Views API

The smart_views API from Close — 2 operation(s) for smart_views.

Close Sms Templates API

The sms_templates API from Close — 2 operation(s) for sms_templates.

Close Tasks API

The tasks API from Close — 2 operation(s) for tasks.

Close Unsubscribed Emails API

The unsubscribed_emails API from Close — 2 operation(s) for unsubscribed_emails.

Close Users API

The users API from Close — 4 operation(s) for users.

Close Webhooks API

The webhooks API from Close — 2 operation(s) for webhooks.

Scroll for all 64

Open Collections 63

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Endpoints subpackage_activities API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesCalls API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesCreations API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesCustomActivities API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesEmails API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesEmailThreads API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesFormSubmissions API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesLeadMerges API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesLeadStatusChanges API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesMeetings API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesNotes API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesOpportunityStatusChanges API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesSms API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesTaskCompletions API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_activitiesWhatsappMessages API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_blockedPhoneNumbers API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_bulkActionsDelete API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_bulkActionsEdit API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_bulkActionsEmail API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_bulkActionsSequenceSubscriptions API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_comments API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_connectedAccounts API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_contacts API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customActivityTypes API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsActivity API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldSchemas API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsContact API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsCustomObject API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsLead API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsOpportunity API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customFieldsShared API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customObjects API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_customObjectTypes API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_dialers API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_emailTemplates API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_events API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_exports API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_fieldEnrichment API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_files API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_groups API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_integrationLinks API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_leads API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_leadStatuses API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_memberships API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_opportunities API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_opportunityStatuses API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_organizations API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_outcomes API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_phoneNumbers API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_pipelines API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_playbooks API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_reporting API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_roles API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_schedulingLinks API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_sendAs API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_sequences API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_smartViews API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_smsTemplates API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_tasks API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_unsubscribedEmails API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_users API

OPEN COLLECTION

API Endpoints subpackage_activities subpackage_webhooks API

OPEN COLLECTION

API Endpoints

OPEN COLLECTION

Scroll for all 63

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Close MCP Server

Remote MCP server at mcp.close.com over HTTP requiring OAuth; 107 tools listed.

MCP SERVER

Agent Skills 5

Packaged agent skills for driving this provider's APIs from an AI assistant.

Page through and bulk-extract Close data without hitting the ceilings

AGENT SKILL

Connect an agent to the Close MCP server at the right privilege level

AGENT SKILL

Create a Close lead and log the first touch

AGENT SKILL

Open and advance a Close opportunity through a pipeline

AGENT SKILL

Subscribe to Close webhooks and verify deliveries

AGENT SKILL

Close API pricing

Prices published by Close, read 2026-10-28 from close.com/pricing.

Plan	Price
Solo	$19 per user/ month Includes: 500 AI credits per user/month; limited to 1 user, 10k leads; workflows not included
Solo (annual)	$9 per user/ month Includes: Annual billing, SAVE UP TO 50%
Essentials	$49 per user/ month Includes: 1,000 AI credits per user/month, shared pool up to 10,000/month
Essentials (annual)	$35 per user/ month Includes: Annual billing
Growth	$109 per user/ month Includes: 1,500 AI credits per user/month, up to 15,000/month; workflows, power dialer
Growth (annual)	$99 per user/ month Includes: Annual billing
Scale	$149 per user/ month Includes: 2,000 AI credits per user/month, up to 20,000/month; predictive dialer, unlimited call recording ret
Scale (annual)	$139 per user/ month Includes: Annual billing

All 11 plans, limits and sources →

Rate limits

Per API Key Per Endpoint Group: requests
Per Organization: requests
Hidden Tighter Limits: requests

All 4 limits →

Billed by: user · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Close Plans Pricing

11 plans

PLANS

Close Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Close Rate Limits

4 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Close

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Close Finops

FINOPS

Features 10

Notable capabilities this provider offers.

REST API at https://api.close.com/api/v1/

HTTP Basic auth with API key, plus OAuth 2.0 for marketplace apps

Solo $9/mo, Essentials $35, Growth $99, Scale $139 per seat (annual)

Premium phone numbers $19/mo per line

AI Call Assistant $50/month + $0.02/min

Additional organizations $50/mo (1 included with Growth/Scale)

Per-endpoint-group rate limits; org limits 3x individual key limits

RateLimit header (limit / remaining / reset) on every response

30-day Event Log for change tracking

Webhooks with advanced filtering and HMAC-signed deliveries

Scroll for all 10

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Close Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Close API Rules

54 rules · 46 errors 7 warnings 1 info

SPECTRAL

OpenAPI Overlays 65

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Close Activities Api Phrasing Overlay

2 actions · phrasing · close-activities-api-openapi.yml

GENERATED

Close Activities Calls Api Phrasing Overlay

6 actions · phrasing · close-activities-calls-api-openapi.yml

GENERATED

Close Activities Creations Api Phrasing Overlay

3 actions · phrasing · close-activities-creations-api-openapi.yml

GENERATED

Close Activities Custom Activities Api Phrasing Overlay

6 actions · phrasing · close-activities-custom-activities-api-openapi.yml

GENERATED

Close Activities Email Threads Api Phrasing Overlay

4 actions · phrasing · close-activities-email-threads-api-openapi.yml

GENERATED

Close Activities Emails Api Phrasing Overlay

6 actions · phrasing · close-activities-emails-api-openapi.yml

GENERATED

Close Activities Form Submissions Api Phrasing Overlay

4 actions · phrasing · close-activities-form-submissions-api-openapi.yml

GENERATED

Close Activities Import Updates Api Phrasing Overlay

4 actions · phrasing · close-activities-import-updates-api-openapi.yml

GENERATED

Close Activities Lead Merges Api Phrasing Overlay

3 actions · phrasing · close-activities-lead-merges-api-openapi.yml

GENERATED

Close Activities Lead Status Changes Api Phrasing Overlay

5 actions · phrasing · close-activities-lead-status-changes-api-openapi.yml

GENERATED

Close Activities Meetings Api Phrasing Overlay

6 actions · phrasing · close-activities-meetings-api-openapi.yml

GENERATED

Close Activities Notes Api Phrasing Overlay

6 actions · phrasing · close-activities-notes-api-openapi.yml

GENERATED

Close Activities Opportunity Status Changes Api Phrasing Overlay

5 actions · phrasing · close-activities-opportunity-status-changes-api-openapi.yml

GENERATED

Close Activities Sms Api Phrasing Overlay

6 actions · phrasing · close-activities-sms-api-openapi.yml

GENERATED

Close Activities Task Completions Api Phrasing Overlay

4 actions · phrasing · close-activities-task-completions-api-openapi.yml

GENERATED

Close Activities Whatsapp Messages Api Phrasing Overlay

6 actions · phrasing · close-activities-whatsapp-messages-api-openapi.yml

GENERATED

Close Api Overlay

10 actions · update · close-api-openapi.json

DERIVED

Close Blocked Phone Numbers Api Phrasing Overlay

8 actions · phrasing · close-blocked-phone-numbers-api-openapi.yml

GENERATED

Close Bulk Actions Delete Api Phrasing Overlay

4 actions · phrasing · close-bulk-actions-delete-api-openapi.yml

GENERATED

Close Bulk Actions Edit Api Phrasing Overlay

4 actions · phrasing · close-bulk-actions-edit-api-openapi.yml

GENERATED

Close Bulk Actions Email Api Phrasing Overlay

4 actions · phrasing · close-bulk-actions-email-api-openapi.yml

GENERATED

Close Bulk Actions Sequence Subscriptions Api Phrasing Overlay

4 actions · phrasing · close-bulk-actions-sequence-subscriptions-api-openapi.yml

GENERATED

Close Comments Api Phrasing Overlay

8 actions · phrasing · close-comments-api-openapi.yml

GENERATED

Close Connected Accounts Api Phrasing Overlay

3 actions · phrasing · close-connected-accounts-api-openapi.yml

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Close Contacts Api Phrasing Overlay

6 actions · phrasing · close-contacts-api-openapi.yml

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Close Custom Activity Types Api Phrasing Overlay

6 actions · phrasing · close-custom-activity-types-api-openapi.yml

GENERATED

Close Custom Field Schemas Api Phrasing Overlay

3 actions · phrasing · close-custom-field-schemas-api-openapi.yml

GENERATED

Close Custom Fields Activity Api Phrasing Overlay

6 actions · phrasing · close-custom-fields-activity-api-openapi.yml

GENERATED

Close Custom Fields Contact Api Phrasing Overlay

6 actions · phrasing · close-custom-fields-contact-api-openapi.yml

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Close Custom Fields Custom Object Api Phrasing Overlay

6 actions · phrasing · close-custom-fields-custom-object-api-openapi.yml

GENERATED

Close Custom Fields Lead Api Phrasing Overlay

6 actions · phrasing · close-custom-fields-lead-api-openapi.yml

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Close Custom Fields Opportunity Api Phrasing Overlay

6 actions · phrasing · close-custom-fields-opportunity-api-openapi.yml

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Close Custom Fields Shared Api Phrasing Overlay

10 actions · phrasing · close-custom-fields-shared-api-openapi.yml

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Close Custom Object Types Api Phrasing Overlay

6 actions · phrasing · close-custom-object-types-api-openapi.yml

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Close Custom Objects Api Phrasing Overlay

6 actions · phrasing · close-custom-objects-api-openapi.yml

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Close Dialers Api Phrasing Overlay

3 actions · phrasing · close-dialers-api-openapi.yml

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Close Email Templates Api Phrasing Overlay

7 actions · phrasing · close-email-templates-api-openapi.yml

GENERATED

Close Events Api Phrasing Overlay

3 actions · phrasing · close-events-api-openapi.yml

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Close Exports Api Phrasing Overlay

9 actions · phrasing · close-exports-api-openapi.yml

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Close Field Enrichment Api Phrasing Overlay

2 actions · phrasing · close-field-enrichment-api-openapi.yml

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Close Files Api Phrasing Overlay

2 actions · phrasing · close-files-api-openapi.yml

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Close Forms Api Phrasing Overlay

3 actions · phrasing · close-forms-api-openapi.yml

GENERATED

Close Groups Api Phrasing Overlay

8 actions · phrasing · close-groups-api-openapi.yml

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Close Integration Links Api Phrasing Overlay

6 actions · phrasing · close-integration-links-api-openapi.yml

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Close Lead Statuses Api Phrasing Overlay

6 actions · phrasing · close-lead-statuses-api-openapi.yml

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Close Leads Api Phrasing Overlay

7 actions · phrasing · close-leads-api-openapi.yml

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Close Memberships Api Phrasing Overlay

7 actions · phrasing · close-memberships-api-openapi.yml

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Close Opportunities Api Phrasing Overlay

6 actions · phrasing · close-opportunities-api-openapi.yml

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Close Opportunity Statuses Api Phrasing Overlay

6 actions · phrasing · close-opportunity-statuses-api-openapi.yml

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Close Organizations Api Phrasing Overlay

3 actions · phrasing · close-organizations-api-openapi.yml

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Close Outcomes Api Phrasing Overlay

6 actions · phrasing · close-outcomes-api-openapi.yml

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Close Phone Numbers Api Phrasing Overlay

6 actions · phrasing · close-phone-numbers-api-openapi.yml

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Close Pipelines Api Phrasing Overlay

6 actions · phrasing · close-pipelines-api-openapi.yml

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Close Playbooks Api Phrasing Overlay

8 actions · phrasing · close-playbooks-api-openapi.yml

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Close Reporting Api Phrasing Overlay

9 actions · phrasing · close-reporting-api-openapi.yml

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Close Roles Api Phrasing Overlay

6 actions · phrasing · close-roles-api-openapi.yml

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Close Scheduling Links Api Phrasing Overlay

15 actions · phrasing · close-scheduling-links-api-openapi.yml

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Close Send As Api Phrasing Overlay

7 actions · phrasing · close-send-as-api-openapi.yml

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Close Sequences Api Phrasing Overlay

11 actions · phrasing · close-sequences-api-openapi.yml

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Close Smart Views Api Phrasing Overlay

6 actions · phrasing · close-smart-views-api-openapi.yml

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Close Sms Templates Api Phrasing Overlay

6 actions · phrasing · close-sms-templates-api-openapi.yml

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Close Tasks Api Phrasing Overlay

7 actions · phrasing · close-tasks-api-openapi.yml

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Close Unsubscribed Emails Api Phrasing Overlay

4 actions · phrasing · close-unsubscribed-emails-api-openapi.yml

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Close Users Api Phrasing Overlay

5 actions · phrasing · close-users-api-openapi.yml

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Close Webhooks Api Phrasing Overlay

6 actions · phrasing · close-webhooks-api-openapi.yml

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Scroll for all 65

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Close Authentication

http/oauth2/apiKey · 3 schemes

SECURITY

Close Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Close Vulnerability Disclosure

Hackerone · contact published

SECURITY

Close Trust Center

SOC 2 Type 2, GDPR, CCPA

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Close Scopes

5 scopes · authorizationCode

5 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Close Agentic Access

300 operations · 160 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Login

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 6

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LlmsText

MCPServer

WellKnown

LLMsTxt

AgentSkill

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Webhooks

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Components

Webhooks

Scroll for all 8

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

ToolCrosswalk

Access & Security 8

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

Authentication

Compliance

OAuthScopes

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Scroll for all 8

Operate 8

Status, limits, changes, and where to get help

StatusPage

Support

RateLimits

RateLimits

Deprecation

ChangeLog

Roadmap

HelpCenter

Scroll for all 8

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

PrivacyPolicy

TermsOfService

Plans

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

ContentSignal

ContentSignal

Overlay

Overlay

Source (apis.yml)

aid: close
url: https://raw.githubusercontent.com/api-evangelist/close/refs/heads/main/apis.yml
name: Close
kind: company
description: Close is an inside-sales CRM with calling, email, SMS, and WhatsApp built in. The Close API exposes leads, contacts,
  opportunities, tasks, activities (calls, emails, SMS, meetings, notes), pipelines, custom objects, sequences, smart views,
  scheduling, phone numbers, reporting, and webhooks for sales automation.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/close.png
x-docs-platform: fern
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-24
x-docs-hosting: vercel
tags:
- CRM
- Sales Engagement
- Inside Sales
- Calling
- SMS
- WhatsApp
- Sales Automation
- Pipeline Management
- AI Agents
- MCP
- Webhook
- Software-as-a-Service
tags_raw:
- CRM
- Sales Engagement
- Inside Sales
- Calling
- SMS
- WhatsApp
- Sales Automation
- Pipeline Management
- AI Agents
- MCP
- Webhooks
- SaaS
created: '2026-05-08'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: close:close-activities-api
  name: Close Activities API
  description: The activities API from Close — 1 operation(s) for activities.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Activities
  tags_raw:
  - activities
  properties:
  - type: OpenAPI
    url: openapi/close-activities-api-openapi.yml
- aid: close:close-activities-calls-api
  name: Close Activities.calls API
  description: The activities.calls API from Close — 2 operation(s) for activities.calls.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.calls
  properties:
  - type: OpenAPI
    url: openapi/close-activities-calls-api-openapi.yml
- aid: close:close-activities-creations-api
  name: Close Activities.creations API
  description: The activities.creations API from Close — 2 operation(s) for activities.creations.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.creations
  properties:
  - type: OpenAPI
    url: openapi/close-activities-creations-api-openapi.yml
- aid: close:close-activities-custom-activities-api
  name: Close Activities.custom Activities API
  description: The activities.custom_activities API from Close — 2 operation(s) for activities.custom_activities.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.custom_activities
  properties:
  - type: OpenAPI
    url: openapi/close-activities-custom-activities-api-openapi.yml
- aid: close:close-activities-email-threads-api
  name: Close Activities.email Threads API
  description: The activities.email_threads API from Close — 2 operation(s) for activities.email_threads.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.email_threads
  properties:
  - type: OpenAPI
    url: openapi/close-activities-email-threads-api-openapi.yml
- aid: close:close-activities-emails-api
  name: Close Activities.emails API
  description: The activities.emails API from Close — 2 operation(s) for activities.emails.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.emails
  properties:
  - type: OpenAPI
    url: openapi/close-activities-emails-api-openapi.yml
- aid: close:close-activities-form-submissions-api
  name: Close Activities.form Submissions API
  description: The activities.form_submissions API from Close — 2 operation(s) for activities.form_submissions.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.form_submissions
  properties:
  - type: OpenAPI
    url: openapi/close-activities-form-submissions-api-openapi.yml
- aid: close:close-activities-import-updates-api
  name: Close Activities.import Updates API
  description: The activities.import_updates API from Close — 2 operation(s) for activities.import_updates.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.import_updates
  properties:
  - type: OpenAPI
    url: openapi/close-activities-import-updates-api-openapi.yml
- aid: close:close-activities-lead-merges-api
  name: Close Activities.lead Merges API
  description: The activities.lead_merges API from Close — 2 operation(s) for activities.lead_merges.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.lead_merges
  properties:
  - type: OpenAPI
    url: openapi/close-activities-lead-merges-api-openapi.yml
- aid: close:close-activities-lead-status-changes-api
  name: Close Activities.lead Status Changes API
  description: The activities.lead_status_changes API from Close — 2 operation(s) for activities.lead_status_changes.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.lead_status_changes
  properties:
  - type: OpenAPI
    url: openapi/close-activities-lead-status-changes-api-openapi.yml
- aid: close:close-activities-meetings-api
  name: Close Activities.meetings API
  description: The activities.meetings API from Close — 3 operation(s) for activities.meetings.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.meetings
  properties:
  - type: OpenAPI
    url: openapi/close-activities-meetings-api-openapi.yml
- aid: close:close-activities-notes-api
  name: Close Activities.notes API
  description: The activities.notes API from Close — 2 operation(s) for activities.notes.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.notes
  properties:
  - type: OpenAPI
    url: openapi/close-activities-notes-api-openapi.yml
- aid: close:close-activities-opportunity-status-changes-api
  name: Close Activities.opportunity Status Changes API
  description: The activities.opportunity_status_changes API from Close — 2 operation(s) for activities.opportunity_status_changes.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.opportunity_status_changes
  properties:
  - type: OpenAPI
    url: openapi/close-activities-opportunity-status-changes-api-openapi.yml
- aid: close:close-activities-sms-api
  name: Close Activities.sms API
  description: The activities.sms API from Close — 2 operation(s) for activities.sms.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.sms
  properties:
  - type: OpenAPI
    url: openapi/close-activities-sms-api-openapi.yml
- aid: close:close-activities-task-completions-api
  name: Close Activities.task Completions API
  description: The activities.task_completions API from Close — 2 operation(s) for activities.task_completions.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.task_completions
  properties:
  - type: OpenAPI
    url: openapi/close-activities-task-completions-api-openapi.yml
- aid: close:close-activities-whatsapp-messages-api
  name: Close Activities.whatsapp Messages API
  description: The activities.whatsapp_messages API from Close — 2 operation(s) for activities.whatsapp_messages.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - activities.whatsapp_messages
  properties:
  - type: OpenAPI
    url: openapi/close-activities-whatsapp-messages-api-openapi.yml
- aid: close:close-blocked-phone-numbers-api
  name: Close Blocked Phone Numbers API
  description: The blocked_phone_numbers API from Close — 3 operation(s) for blocked_phone_numbers.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - blocked_phone_numbers
  properties:
  - type: OpenAPI
    url: openapi/close-blocked-phone-numbers-api-openapi.yml
- aid: close:close-bulk-actions-delete-api
  name: Close Bulk Actions.delete API
  description: The bulk_actions.delete API from Close — 2 operation(s) for bulk_actions.delete.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - bulk_actions.delete
  properties:
  - type: OpenAPI
    url: openapi/close-bulk-actions-delete-api-openapi.yml
- aid: close:close-bulk-actions-edit-api
  name: Close Bulk Actions.edit API
  description: The bulk_actions.edit API from Close — 2 operation(s) for bulk_actions.edit.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - bulk_actions.edit
  properties:
  - type: OpenAPI
    url: openapi/close-bulk-actions-edit-api-openapi.yml
- aid: close:close-bulk-actions-email-api
  name: Close Bulk Actions.email API
  description: The bulk_actions.email API from Close — 2 operation(s) for bulk_actions.email.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - bulk_actions.email
  properties:
  - type: OpenAPI
    url: openapi/close-bulk-actions-email-api-openapi.yml
- aid: close:close-bulk-actions-sequence-subscriptions-api
  name: Close Bulk Actions.sequence Subscriptions API
  description: The bulk_actions.sequence_subscriptions API from Close — 2 operation(s) for bulk_actions.sequence_subscriptions.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - bulk_actions.sequence_subscriptions
  properties:
  - type: OpenAPI
    url: openapi/close-bulk-actions-sequence-subscriptions-api-openapi.yml
- aid: close:close-comments-api
  name: Close Comments API
  description: The comments API from Close — 4 operation(s) for comments.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Comments
  tags_raw:
  - comments
  properties:
  - type: OpenAPI
    url: openapi/close-comments-api-openapi.yml
- aid: close:close-connected-accounts-api
  name: Close Connected Accounts API
  description: The connected_accounts API from Close — 2 operation(s) for connected_accounts.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Connected Accounts
  tags_raw:
  - connected_accounts
  properties:
  - type: OpenAPI
    url: openapi/close-connected-accounts-api-openapi.yml
- aid: close:close-contacts-api
  name: Close Contacts API
  description: The contacts API from Close — 2 operation(s) for contacts.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Contacts
  tags_raw:
  - contacts
  properties:
  - type: OpenAPI
    url: openapi/close-contacts-api-openapi.yml
- aid: close:close-custom-activity-types-api
  name: Close Custom Activity Types API
  description: The custom_activity_types API from Close — 2 operation(s) for custom_activity_types.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - custom_activity_types
  properties:
  - type: OpenAPI
    url: openapi/close-custom-activity-types-api-openapi.yml
- aid: close:close-custom-field-schemas-api
  name: Close Custom Field Schemas API
  description: The custom_field_schemas API from Close — 1 operation(s) for custom_field_schemas.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - custom_field_schemas
  properties:
  - type: OpenAPI
    url: openapi/close-custom-field-schemas-api-openapi.yml
- aid: close:close-custom-fields-activity-api
  name: Close Custom Fields.activity API
  description: The custom_fields.activity API from Close — 2 operation(s) for custom_fields.activity.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.activity
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-activity-api-openapi.yml
- aid: close:close-custom-fields-contact-api
  name: Close Custom Fields.contact API
  description: The custom_fields.contact API from Close — 2 operation(s) for custom_fields.contact.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.contact
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-contact-api-openapi.yml
- aid: close:close-custom-fields-custom-object-api
  name: Close Custom Fields.custom Object API
  description: The custom_fields.custom_object API from Close — 2 operation(s) for custom_fields.custom_object.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.custom_object
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-custom-object-api-openapi.yml
- aid: close:close-custom-fields-lead-api
  name: Close Custom Fields.lead API
  description: The custom_fields.lead API from Close — 2 operation(s) for custom_fields.lead.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.lead
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-lead-api-openapi.yml
- aid: close:close-custom-fields-opportunity-api
  name: Close Custom Fields.opportunity API
  description: The custom_fields.opportunity API from Close — 2 operation(s) for custom_fields.opportunity.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.opportunity
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-opportunity-api-openapi.yml
- aid: close:close-custom-fields-shared-api
  name: Close Custom Fields.shared API
  description: The custom_fields.shared API from Close — 4 operation(s) for custom_fields.shared.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - custom_fields.shared
  properties:
  - type: OpenAPI
    url: openapi/close-custom-fields-shared-api-openapi.yml
- aid: close:close-custom-object-types-api
  name: Close Custom Object Types API
  description: The custom_object_types API from Close — 2 operation(s) for custom_object_types.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - custom_object_types
  properties:
  - type: OpenAPI
    url: openapi/close-custom-object-types-api-openapi.yml
- aid: close:close-custom-objects-api
  name: Close Custom Objects API
  description: The custom_objects API from Close — 2 operation(s) for custom_objects.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Custom Objects
  tags_raw:
  - custom_objects
  properties:
  - type: OpenAPI
    url: openapi/close-custom-objects-api-openapi.yml
- aid: close:close-dialers-api
  name: Close Dialers API
  description: The dialers API from Close — 2 operation(s) for dialers.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - dialers
  properties:
  - type: OpenAPI
    url: openapi/close-dialers-api-openapi.yml
- aid: close:close-email-templates-api
  name: Close Email Templates API
  description: The email_templates API from Close — 3 operation(s) for email_templates.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Email Templates
  tags_raw:
  - email_templates
  properties:
  - type: OpenAPI
    url: openapi/close-email-templates-api-openapi.yml
- aid: close:close-events-api
  name: Close Events API
  description: The events API from Close — 2 operation(s) for events.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Event
  tags_raw:
  - events
  properties:
  - type: OpenAPI
    url: openapi/close-events-api-openapi.yml
- aid: close:close-exports-api
  name: Close Exports API
  description: The exports API from Close — 6 operation(s) for exports.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Export
  tags_raw:
  - exports
  properties:
  - type: OpenAPI
    url: openapi/close-exports-api-openapi.yml
- aid: close:close-field-enrichment-api
  name: Close Field Enrichment API
  description: The field_enrichment API from Close — 1 operation(s) for field_enrichment.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - field_enrichment
  properties:
  - type: OpenAPI
    url: openapi/close-field-enrichment-api-openapi.yml
- aid: close:close-files-api
  name: Close Files API
  description: The files API from Close — 1 operation(s) for files.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - File
  tags_raw:
  - files
  properties:
  - type: OpenAPI
    url: openapi/close-files-api-openapi.yml
- aid: close:close-forms-api
  name: Close Forms API
  description: The forms API from Close — 2 operation(s) for forms.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Forms
  tags_raw:
  - forms
  properties:
  - type: OpenAPI
    url: openapi/close-forms-api-openapi.yml
- aid: close:close-groups-api
  name: Close Groups API
  description: The groups API from Close — 4 operation(s) for groups.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Group
  tags_raw:
  - groups
  properties:
  - type: OpenAPI
    url: openapi/close-groups-api-openapi.yml
- aid: close:close-integration-links-api
  name: Close Integration Links API
  description: The integration_links API from Close — 2 operation(s) for integration_links.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Integration-Links
  tags_raw:
  - integration_links
  properties:
  - type: OpenAPI
    url: openapi/close-integration-links-api-openapi.yml
- aid: close:close-lead-statuses-api
  name: Close Lead Statuses API
  description: The lead_statuses API from Close — 2 operation(s) for lead_statuses.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Lead Statuses
  tags_raw:
  - lead_statuses
  properties:
  - type: OpenAPI
    url: openapi/close-lead-statuses-api-openapi.yml
- aid: close:close-leads-api
  name: Close Leads API
  description: The leads API from Close — 3 operation(s) for leads.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Leads
  tags_raw:
  - leads
  properties:
  - type: OpenAPI
    url: openapi/close-leads-api-openapi.yml
- aid: close:close-memberships-api
  name: Close Memberships API
  description: The memberships API from Close — 3 operation(s) for memberships.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Membership
  tags_raw:
  - memberships
  properties:
  - type: OpenAPI
    url: openapi/close-memberships-api-openapi.yml
- aid: close:close-opportunities-api
  name: Close Opportunities API
  description: The opportunities API from Close — 2 operation(s) for opportunities.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Opportunities
  tags_raw:
  - opportunities
  properties:
  - type: OpenAPI
    url: openapi/close-opportunities-api-openapi.yml
- aid: close:close-opportunity-statuses-api
  name: Close Opportunity Statuses API
  description: The opportunity_statuses API from Close — 2 operation(s) for opportunity_statuses.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - opportunity_statuses
  properties:
  - type: OpenAPI
    url: openapi/close-opportunity-statuses-api-openapi.yml
- aid: close:close-organizations-api
  name: Close Organizations API
  description: The organizations API from Close — 1 operation(s) for organizations.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Organization
  tags_raw:
  - organizations
  properties:
  - type: OpenAPI
    url: openapi/close-organizations-api-openapi.yml
- aid: close:close-outcomes-api
  name: Close Outcomes API
  description: The outcomes API from Close — 2 operation(s) for outcomes.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Outcomes
  tags_raw:
  - outcomes
  properties:
  - type: OpenAPI
    url: openapi/close-outcomes-api-openapi.yml
- aid: close:close-phone-numbers-api
  name: Close Phone Numbers API
  description: The phone_numbers API from Close — 3 operation(s) for phone_numbers.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Phone Numbers
  tags_raw:
  - phone_numbers
  properties:
  - type: OpenAPI
    url: openapi/close-phone-numbers-api-openapi.yml
- aid: close:close-pipelines-api
  name: Close Pipelines API
  description: The pipelines API from Close — 2 operation(s) for pipelines.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Pipelines
  tags_raw:
  - pipelines
  properties:
  - type: OpenAPI
    url: openapi/close-pipelines-api-openapi.yml
- aid: close:close-playbooks-api
  name: Close Playbooks API
  description: The playbooks API from Close — 4 operation(s) for playbooks.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Playbooks
  tags_raw:
  - playbooks
  properties:
  - type: OpenAPI
    url: openapi/close-playbooks-api-openapi.yml
- aid: close:close-reporting-api
  name: Close Reporting API
  description: The reporting API from Close — 8 operation(s) for reporting.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Reporting
  tags_raw:
  - reporting
  properties:
  - type: OpenAPI
    url: openapi/close-reporting-api-openapi.yml
- aid: close:close-roles-api
  name: Close Roles API
  description: The roles API from Close — 2 operation(s) for roles.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Roles
  tags_raw:
  - roles
  properties:
  - type: OpenAPI
    url: openapi/close-roles-api-openapi.yml
- aid: close:close-scheduling-links-api
  name: Close Scheduling Links API
  description: The scheduling_links API from Close — 8 operation(s) for scheduling_links.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Scheduling Links
  tags_raw:
  - scheduling_links
  properties:
  - type: OpenAPI
    url: openapi/close-scheduling-links-api-openapi.yml
- aid: close:close-send-as-api
  name: Close Send As API
  description: The send_as API from Close — 3 operation(s) for send_as.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - send_as
  properties:
  - type: OpenAPI
    url: openapi/close-send-as-api-openapi.yml
- aid: close:close-sequences-api
  name: Close Sequences API
  description: The sequences API from Close — 4 operation(s) for sequences.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Sequences
  tags_raw:
  - sequences
  properties:
  - type: OpenAPI
    url: openapi/close-sequences-api-openapi.yml
- aid: close:close-smart-views-api
  name: Close Smart Views API
  description: The smart_views API from Close — 2 operation(s) for smart_views.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - smart_views
  properties:
  - type: OpenAPI
    url: openapi/close-smart-views-api-openapi.yml
- aid: close:close-sms-templates-api
  name: Close Sms Templates API
  description: The sms_templates API from Close — 2 operation(s) for sms_templates.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - SMS Templates
  tags_raw:
  - sms_templates
  properties:
  - type: OpenAPI
    url: openapi/close-sms-templates-api-openapi.yml
- aid: close:close-tasks-api
  name: Close Tasks API
  description: The tasks API from Close — 2 operation(s) for tasks.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Task
  tags_raw:
  - tasks
  properties:
  - type: OpenAPI
    url: openapi/close-tasks-api-openapi.yml
- aid: close:close-unsubscribed-emails-api
  name: Close Unsubscribed Emails API
  description: The unsubscribed_emails API from Close — 2 operation(s) for unsubscribed_emails.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags: []
  tags_raw:
  - unsubscribed_emails
  properties:
  - type: OpenAPI
    url: openapi/close-unsubscribed-emails-api-openapi.yml
- aid: close:close-users-api
  name: Close Users API
  description: The users API from Close — 4 operation(s) for users.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - User
  tags_raw:
  - users
  properties:
  - type: OpenAPI
    url: openapi/close-users-api-openapi.yml
- aid: close:close-webhooks-api
  name: Close Webhooks API
  description: The webhooks API from Close — 2 operation(s) for webhooks.
  humanURL: https://developer.close.com/api/resources/activities
  baseURL: https://api.close.com/api/v1
  tags:
  - Webhook
  tags_raw:
  - webhooks
  properties:
  - type: OpenAPI
    url: openapi/close-webhooks-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/close-capability-edges.yml
  name: Close Business Capability Map
- type: AgenticAccess
  url: agentic-access/close-agentic-access.yml
- type: TrustCenter
  url: security/close-trust-center.yml
- type: DomainSecurity
  url: security/close-domain-security.yml
- type: Authentication
  url: authentication/close-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/close-crm
- type: Website
  url: https://www.close.com/
- type: Documentation
  url: https://developer.close.com/
- type: APIReference
  url: https://developer.close.com/api/resources/leads
- type: Pricing
  url: https://www.close.com/pricing
- type: Login
  url: https://app.close.com/
- type: StatusPage
  url: https://status.close.com/
- type: Blog
  url: https://www.close.com/blog
- type: Support
  url: https://help.close.com/
- type: GitHubOrganization
  url: https://github.com/closeio
- type: PrivacyPolicy
  url: https://www.close.com/privacy
- type: TermsOfService
  url: https://www.close.com/terms
- type: Authentication
  url: https://developer.close.com/api/overview/api-key-authentication
- type: RateLimits
  url: https://developer.close.com/api/overview/rate-limits.md
- type: Webhooks
  url: https://developer.close.com/api/resources/webhooks
- type: Plans
  url: plans/close-plans-pricing.yml
- type: RateLimits
  url: rate-limits/close-rate-limits.yml
- type: FinOps
  url: finops/close-finops.yml
- type: Features
  data:
  - REST API at https://api.close.com/api/v1/
  - HTTP Basic auth with API key, plus OAuth 2.0 for marketplace apps
  - Solo $9/mo, Essentials $35, Growth $99, Scale $139 per seat (annual)
  - Premium phone numbers $19/mo per line
  - AI Call Assistant $50/month + $0.02/min
  - Additional organizations $50/mo (1 included with Growth/Scale)
  - Per-endpoint-group rate limits; org limits 3x individual key limits
  - RateLimit header (limit / remaining / reset) on every response
  - 30-day Event Log for change tracking
  - Webhooks with advanced filtering and HMAC-signed deliveries
  sources:
  - https://www.close.com/pricing
  - https://developer.close.com/
  - https://developer.close.com/api/overview/rate-limits.md
  updated: '2026-05-08'
- type: Integrations
  url: https://close.com/integrations
- type: LlmsText
  url: https://developer.close.com/llms.txt
- type: OpenAPI
  url: openapi/_original/close-api-openapi.json
- type: Packages
  url: packages/close-packages.yml
- type: SDKs
  url: packages/close-packages.yml
- type: MCPServer
  url: mcp/close-mcp.yml
- type: ToolCrosswalk
  url: mcp/close-tool-crosswalk.yml
- type: WellKnown
  url: well-known/close-well-known.yml
- type: ContentSignal
  url: well-known/close-robots.txt
- type: LLMsTxt
  url: llms/close-llms.txt
- type: Overlay
  url: overlays/close-api-overlay.yaml
- type: Conformance
  url: conformance/close-conformance.yml
- type: Compliance
  url: https://close.com/security
- type: ErrorCatalog
  url: errors/close-problem-types.yml
- type: Lifecycle
  url: lifecycle/close-lifecycle.yml
- type: Deprecation
  url: https://developer.close.com/api/overview/changelog
- type: ChangeLog
  url: changelog/close-changelog.yml
- type: OAuthScopes
  url: scopes/close-scopes.yml
- type: Conventions
  url: conventions/close-conventions.yml
- type: DataModel
  url: data-model/close-data-model.yml
- type: Components
  url: components/close-components.yml
- type: VulnerabilityDisclosure
  url: security/close-vulnerability-disclosure.yml
- type: Security
  url: https://close.com/security/submit-report
- type: Webhooks
  url: asyncapi/close-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://developer.close.com/
- type: GettingStarted
  url: https://developer.close.com/api/overview
- type: SignUp
  url: https://app.close.com/signup/
- type: Roadmap
  url: https://close.com/changelog
- type: HelpCenter
  url: https://help.close.com/
integrations:
- name: Dimedove AI lead qualification agents
- name: Roezan High-performance SMS platform
- name: Wrk All-in-one automation platform
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 26
  pass: local-v1

Close API — frequently asked questions

Does Close have an API?

Yes. APIs.io lists 64 APIs from Close, including Close Activities API, Close Activities.calls API and Close Activities.creations API, and 61 more.

Is there an OpenAPI specification for the Close API?

Yes. APIs.io indexes 64 OpenAPI specifications for Close, each linked for download from this page.

How do I authenticate with the Close API?

Close documents its authentication (http/oauth2/apiKey · 3 schemes). The details are profiled on APIs.io as Close Authentication.

How much does the Close API cost?

Close publishes its prices; its Solo plan is $19 per user/ month as of 2026-10-28. APIs.io lists 11 pricing plans for Close, with each plan's price, limits and inclusions under Pricing on this page.

Does Close have an MCP server?

Yes. APIs.io lists 1 MCP server for Close: Remote MCP server at mcp.close.com over HTTP requiring OAuth; 107 tools listed.

Is the Close API ready for AI agents?

Close has a Kin Score of 78.3 out of 100 (exemplar) and an Agent Readiness score of 60.0 (agent-ready), scored by API Evangelist on 2026-11-06.

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