Instantly

Instantly is a cold email outbound platform that combines mailbox sending infrastructure, email warmup, a B2B lead database, deliverability tools, and a unified inbox for replies. The Instantly v2 REST API at api.instantly.ai/api/v2 publishes a 173-operation OpenAPI 3.1 covering campaigns and subsequences, leads and lead lists, sending accounts and warmup, email verification, inbox placement tests, SuperSearch enrichment, blocklists, custom tags, audit logs, background jobs, webhooks, analytics, API keys, workspaces and workspace groups. Authentication is a scoped Bearer API key backed by a full OAuth 2.0 authorization server with 178 published scopes, PKCE and dynamic client registration. Instantly also runs a hosted remote MCP server, publishes an A2A agent card, an llms.txt and first-party Agent Skills.

Instantly publishes 29 API contracts indexed on the APIs.io network, including Account API, Account Campaign Mapping API, Analytics API, and 26 more. Tagged areas include Cold Email, Outbound, Sales, Deliverability, and Lead Database.

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

Instantly’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, engineering blog, signup flow, and 42 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

68.7/100 exemplar ▬ flat Agent 61/100 agent ready Front door AI 4/6 moderate Heartbeat 86/100 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 2 Agent Skills

Cold Email Outbound Sales DeliverabilityLead DatabaseEmail Verification Webhook A2A

What this lets a business do 5

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

Marketing Management

BC-400

AnalyticsCampaignCampaignSubsequence

POST /api/v2/campaigns GET /api/v2/campaigns GET /api/v2/campaigns/analytics POST /api/v2/subsequences

Application Communications

AE-150

POST /api/v2/emails/reply POST /api/v2/emails/forward GET /api/v2/emails GET /api/v2/emails/unread/count

Data & Reference Information Services

AE-230

SuperSearchEnrichment

POST /api/v2/supersearch-enrichment/ POST /api/v2/supersearch-enrichment/enrich-leads-from-supersearch POST /api/v2/supersearch-enrichment/count-leads-from-supersearch

Sales Management

BC-410

Lead

POST /api/v2/leads POST /api/v2/leads/update-interest-status POST /api/v2/leads/move

SaaS Tenant Management

BC-4230

Workspace

POST /api/v2/workspaces/current/schedule-for-removal POST /api/v2/workspaces/current/whitelabel-domain

Kin Score

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

Composite quality — 68.7/100 · exemplar

Contract Quality 12.5 / 19

Developer Ergonomics 11.8 / 15

Access Clarity 12.6 / 15

Operational Transparency 4.9 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 5.1 / 15

Create-or-Update Ergonomics 1.1 / 10

Agent readiness — 61/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 0 / 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 Horizontal (data, software, accessibility, platform) 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/.

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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
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
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures

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

Contract Governance scores 18.2 — up to +9.8 composite points
Contract Quality scores 66.5 — up to +8.4 composite points
Operational Transparency scores 50.0 — up to +6.5 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/instantly-ai/apis.yml: open an issue on github.com/api-evangelist/instantly-ai 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
Agent Skills (SKILL.md packages)	long-tail	7.5	-	2

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 7

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.

Agent2Agent

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

Agent Skills

measured — observed by APIs.io (published)

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 29

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

Instantly Account API

An email account that can be used to send campaigns

Instantly Account Campaign Mapping API

Account Campaign Mapping

Instantly Analytics API

Endpoints related to analytics

Instantly Block List Entry API

A blocked email or domain

Instantly Campaign API

A campaign that can be sent to a list of recipients

Instantly Campaign Subsequence API

A subsequence entity representing a follow-up sequence

Instantly CRM Actions API

CRM related actions

Instantly Custom Tag API

A custom tag for organizing and categorizing accounts and campaigns. You can use them as filters in apis that list accounts and campaigns.

Instantly Custom Tag Mapping API

This entity represents a tag being assigned to a specific campaign or email account. When an email account is assigned a tag, a new custom tag mapping entry is created, which co...

Instantly DFY Email Account Order API

A Done-For-You email account order

Instantly Email API

A campaign email, a reply, a manually sent email, or any other email that's visible in the Unibox

Instantly Inbox Placement Analytics API

Analytics data for individual emails in inbox placement tests

Instantly Inbox Placement Blacklist And Spam Assassin Report API

Report data for an inbox placement test

Instantly Inbox Placement Test API

An inbox placement test

Instantly Lead API

A lead entity representing an individual lead

Instantly Lead Label API

A custom label for categorizing and managing leads

Instantly Lead List API

A list used to store leads

Instantly Super Search Enrichment API

An enrichment can take different forms, such as email enrichment or LinkedIn enrichment. Leads may be imported from SuperSearch using the dedicated endpoint, or enriched directl...

Instantly Webhook API

A webhook subscription for receiving event notifications

Instantly Workspace API

A workspace entity representing a workspace

Instantly Workspace Billing API

Workspace Billing

Instantly Workspace Group Member API

A member of a workspace group. You can use the endpoints within this entity to manage the members of a workspace group.

Instantly Workspace Member API

A member of a workspace with associated user details

Instantly O Auth API

OAuth authentication endpoints for connecting Google and Microsoft email accounts

Instantly API Key API

API Key

Instantly Audit Log API

Audit log records for tracking system activities

Instantly Background Job API

A background job that can be used to perform long-running tasks

Instantly Email Verification API

A single email verification

Instantly Webhook Event API

A webhook event that was sent or attempted to be sent

Scroll for all 29

Open Collections 2

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

Instantly.ai API v2 Campaigns API

OPEN COLLECTION

Instantly.ai API v2

OPEN COLLECTION

MCP Servers 1

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

Instantly MCP Server

Remote MCP server at mcp.instantly.ai requiring OAuth.

MCP SERVER

Agent Skills 2

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

Instantly

AGENT SKILL

instantly-gtm

AGENT SKILL

Instantly API pricing

Prices published by Instantly, read 2026-10-28 from instantly.ai/pricing.

Plan	Price
Starter (bundle)	$94/monthly Includes: 5000 emails monthly, 1000 uploaded contacts; 1500 Instantly credits monthly
Scale (bundle)	$194/monthly Includes: 100,000 emails monthly, 25,000 uploaded contacts; 5000 Instantly credits monthly
Agency (bundle)	$555/monthly Includes: 500,000 emails monthly, 100,000 uploaded contacts; 10,000 Instantly credits monthly
Starter (yearly, save 10%)	$85/monthly Includes: 5000 emails monthly, 1000 uploaded contacts
Scale (yearly, save 10%)	$175/monthly Includes: 100,000 emails monthly, 25,000 uploaded contacts
Agency (yearly, save 10%)	$500/monthly Includes: 500,000 emails monthly, 100,000 uploaded contacts
Outreach Growth	$47/monthly Includes: Unlimited Email Accounts, 1000 Uploaded Contacts, 5000 Emails Monthly
Outreach Hypergrowth	$97/monthly Includes: 25 000 Uploaded Contacts, 125 000 Emails Monthly

All 20 plans, limits and sources →

Rate limits

Global requests per second: 100 requests per second
Global requests per minute: 6000 requests per minute
List emails: 20 requests per minute

All 7 limits →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Instantly Ai Plans Pricing

20 plans

PLANS

Instantly Ai Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Instantly Ai Rate Limits

7 limits

RATE LIMITS

Service Levels 1

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

Instantly

SLA

FinOps 1

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

Instantly Ai Finops

FINOPS

Event Specifications 1

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

Instantly Ai Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Instantly API Rules

65 rules · 48 errors 16 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

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.

Instantly Ai Api V2 Overlay

7 actions · documentation · instantly-ai-api-v2-openapi.yml

DERIVED

Security Posture 2

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

Instantly Ai Authentication

http/oauth2 · 2 schemes

SECURITY

Instantly Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Instantly Ai Scopes

178 scopes · authorizationCode

178 scopes

SCOPES

Agentic Access 1

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

Instantly Ai Agentic Access

181 operations · 98 acting · 2 human-in-the-loop

181 operations · 98 acting

AGENTIC

Resources

Get Started 6

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Signup

Signup

Login

DeveloperPortal

DeveloperPortal

Quickstart

Quickstart

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

LLMsTxt

WellKnown

MCPServer

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Conformance

Lifecycle

Webhooks

DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

ToolCrosswalk

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

Authentication

OAuthScopes

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 5

Status, limits, changes, and where to get help

Help

Support

Community

Deprecation

RateLimits

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

PrivacyPolicy

TermsOfService

Plans

FinOps

Company 4

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Twitter

Twitter

Other 4

Properties that don't map to a standard resource type

CapabilityMap

App

AgentCard

Overlay

Source (apis.yml)

aid: instantly-ai
url: https://raw.githubusercontent.com/api-evangelist/instantly-ai/refs/heads/main/apis.yml
name: Instantly
kind: company
description: Instantly is a cold email outbound platform that combines mailbox sending infrastructure, email warmup, a B2B
  lead database, deliverability tools, and a unified inbox for replies. The Instantly v2 REST API at api.instantly.ai/api/v2
  publishes a 173-operation OpenAPI 3.1 covering campaigns and subsequences, leads and lead lists, sending accounts and warmup,
  email verification, inbox placement tests, SuperSearch enrichment, blocklists, custom tags, audit logs, background jobs,
  webhooks, analytics, API keys, workspaces and workspace groups. Authentication is a scoped Bearer API key backed by a full
  OAuth 2.0 authorization server with 178 published scopes, PKCE and dynamic client registration. Instantly also runs a hosted
  remote MCP server, publishes an A2A agent card, an llms.txt and first-party Agent Skills.
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/instantly-ai.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
x-docs-hosting: vercel
tags:
- Cold Email
- Outbound
- Sales
- Deliverability
- Lead Database
- Email Verification
- Webhook
- A2A
tags_raw:
- Cold Email
- Outbound
- Sales
- Deliverability
- Lead Database
- Email Verification
- Webhooks
- A2A
created: '2026-05-23'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: instantly-ai:instantly-ai-account-api
  name: Instantly Account API
  description: An email account that can be used to send campaigns
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-account-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-accountcampaignmapping-api
  name: Instantly Account Campaign Mapping API
  description: Account Campaign Mapping
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - AccountCampaignMapping
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-accountcampaignmapping-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-analytics-api
  name: Instantly Analytics API
  description: Endpoints related to analytics
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-analytics-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-blocklistentry-api
  name: Instantly Block List Entry API
  description: A blocked email or domain
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - BlockListEntry
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-blocklistentry-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-campaign-api
  name: Instantly Campaign API
  description: A campaign that can be sent to a list of recipients
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Campaign
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-campaign-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-campaignsubsequence-api
  name: Instantly Campaign Subsequence API
  description: A subsequence entity representing a follow-up sequence
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - CampaignSubsequence
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-campaignsubsequence-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-crmactions-api
  name: Instantly CRM Actions API
  description: CRM related actions
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - CRMActions
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-crmactions-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-customtag-api
  name: Instantly Custom Tag API
  description: A custom tag for organizing and categorizing accounts and campaigns. You can use them as filters in apis that
    list accounts and campaigns.
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - CustomTag
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-customtag-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-customtagmapping-api
  name: Instantly Custom Tag Mapping API
  description: This entity represents a tag being assigned to a specific campaign or email account. When an email account
    is assigned a tag, a new custom tag mapping entry is created, which connects the tag (`tag_id` field) with the email account
    (`resource_id` field). You can use it to see which tag si connected to which resource.
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - CustomTagMapping
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-customtagmapping-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-dfyemailaccountorder-api
  name: Instantly DFY Email Account Order API
  description: A Done-For-You email account order
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - DFYEmailAccountOrder
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-dfyemailaccountorder-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-email-api
  name: Instantly Email API
  description: A campaign email, a reply, a manually sent email, or any other email that's visible in the Unibox
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Email
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-email-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-inboxplacementanalytics-api
  name: Instantly Inbox Placement Analytics API
  description: Analytics data for individual emails in inbox placement tests
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - InboxPlacementAnalytics
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-inboxplacementanalytics-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-inboxplacementblacklistandspamassassinreport-api
  name: Instantly Inbox Placement Blacklist And Spam Assassin Report API
  description: Report data for an inbox placement test
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - InboxPlacementBlacklistAndSpamAssassinReport
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-inboxplacementblacklistandspamassassinreport-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-inboxplacementtest-api
  name: Instantly Inbox Placement Test API
  description: An inbox placement test
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - InboxPlacementTest
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-inboxplacementtest-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-lead-api
  name: Instantly Lead API
  description: A lead entity representing an individual lead
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Leads
  tags_raw:
  - Lead
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-lead-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-leadlabel-api
  name: Instantly Lead Label API
  description: A custom label for categorizing and managing leads
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - LeadLabel
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-leadlabel-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-leadlist-api
  name: Instantly Lead List API
  description: A list used to store leads
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - LeadList
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-leadlist-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-supersearchenrichment-api
  name: Instantly Super Search Enrichment API
  description: An enrichment can take different forms, such as email enrichment or LinkedIn enrichment. Leads may be imported
    from SuperSearch using the dedicated endpoint, or enriched directly within a list or campaign by attaching an enrichment
    to it.
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - SuperSearchEnrichment
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-supersearchenrichment-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-webhook-api
  name: Instantly Webhook API
  description: A webhook subscription for receiving event notifications
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Webhook
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-webhook-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-workspace-api
  name: Instantly Workspace API
  description: A workspace entity representing a workspace
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Workspace
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-workspace-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-workspacebilling-api
  name: Instantly Workspace Billing API
  description: Workspace Billing
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - WorkspaceBilling
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-workspacebilling-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-workspacegroupmember-api
  name: Instantly Workspace Group Member API
  description: A member of a workspace group. You can use the endpoints within this entity to manage the members of a workspace
    group.
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - WorkspaceGroupMember
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-workspacegroupmember-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-workspacemember-api
  name: Instantly Workspace Member API
  description: A member of a workspace with associated user details
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - WorkspaceMember
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-workspacemember-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-oauth-api
  name: Instantly O Auth API
  description: OAuth authentication endpoints for connecting Google and Microsoft email accounts
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - OAuth
  - Authentication
  tags_raw:
  - OAuth
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-oauth-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-api-key-api
  name: Instantly API Key API
  description: API Key
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - APIKeys
  tags_raw:
  - API Key
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-api-key-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-audit-log-api
  name: Instantly Audit Log API
  description: Audit log records for tracking system activities
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Audit Logs
  tags_raw:
  - Audit Log
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-audit-log-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-background-job-api
  name: Instantly Background Job API
  description: A background job that can be used to perform long-running tasks
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Background Job
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-background-job-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-email-verification-api
  name: Instantly Email Verification API
  description: A single email verification
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - Email Verification
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-email-verification-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
- aid: instantly-ai:instantly-ai-webhook-event-api
  name: Instantly Webhook Event API
  description: A webhook event that was sent or attempted to be sent
  humanURL: https://developer.instantly.ai/api-reference
  baseURL: https://api.instantly.ai/api/v2
  tags:
  - WebhookEvent
  tags_raw:
  - Webhook Event
  properties:
  - type: OpenAPI
    url: openapi/instantly-ai-webhook-event-api-openapi.yml
  - type: APIReference
    url: https://developer.instantly.ai/api-reference
  - type: Documentation
    url: https://developer.instantly.ai
common:
- type: CapabilityMap
  url: capabilities/instantly-ai-capability-edges.yml
  name: Instantly Business Capability Map
- type: AgenticAccess
  url: agentic-access/instantly-ai-agentic-access.yml
- type: DomainSecurity
  url: security/instantly-ai-domain-security.yml
- type: Authentication
  url: authentication/instantly-ai-authentication.yml
- type: Website
  url: https://instantly.ai
- type: App
  url: https://app.instantly.ai
- type: Documentation
  url: https://developer.instantly.ai
- type: APIReference
  url: https://developer.instantly.ai/api-reference
- type: GettingStarted
  url: https://developer.instantly.ai/getting-started/getting-started
- type: Authentication
  url: https://developer.instantly.ai/getting-started/authorization
- type: OpenAPI
  url: https://api.instantly.ai/openapi/api_v2.json
- type: Pricing
  url: https://instantly.ai/pricing
- type: Blog
  url: https://instantly.ai/blog
- type: Help
  url: https://help.instantly.ai
- type: Signup
  url: https://app.instantly.ai/auth/signup
- type: Login
  url: https://app.instantly.ai/auth/login
- type: PrivacyPolicy
  url: https://instantly.ai/privacy-policy
- type: TermsOfService
  url: https://instantly.ai/terms
- type: LinkedIn
  url: https://www.linkedin.com/company/instantlyai
- type: Twitter
  url: https://x.com/Instantlydotai
- type: YouTube
  url: https://www.youtube.com/@instantly-ai
- type: LlmsText
  url: https://developer.instantly.ai/llms.txt
- type: LLMsTxt
  url: llms/instantly-ai-llms.txt
- type: DeveloperPortal
  url: https://developer.instantly.ai
- type: Quickstart
  url: https://developer.instantly.ai/quickstart
- type: Support
  url: https://help.instantly.ai
- type: Community
  url: https://developer.instantly.ai/getting-started/slack-channel
- type: SignUp
  url: https://app.instantly.ai/auth/signup
- type: GitHubOrganization
  url: https://github.com/Instantly-ai
- type: Packages
  url: packages/instantly-ai-packages.yml
- type: SDKs
  url: packages/instantly-ai-packages.yml
- type: CLI
  url: cli/instantly-ai-cli.yml
- type: WellKnown
  url: well-known/instantly-ai-well-known.yml
- type: MCPServer
  url: mcp/instantly-ai-mcp.yml
- type: ToolCrosswalk
  url: mcp/instantly-ai-tool-crosswalk.yml
- type: AgentCard
  url: a2a/instantly-ai-a2a.yml
- type: AgentSkill
  url: skills/_index.yml
- type: OAuthScopes
  url: scopes/instantly-ai-scopes.yml
- type: Conventions
  url: conventions/instantly-ai-conventions.yml
- type: ErrorCatalog
  url: errors/instantly-ai-problem-types.yml
- type: Conformance
  url: conformance/instantly-ai-conformance.yml
- type: Lifecycle
  url: lifecycle/instantly-ai-lifecycle.yml
- type: Deprecation
  url: https://developer.instantly.ai/guides/api-v1-migration
- type: Webhooks
  url: asyncapi/instantly-ai-webhooks.yml
- type: DataModel
  url: data-model/instantly-ai-data-model.yml
- type: Overlay
  url: overlays/instantly-ai-api-v2-overlay.yaml
- type: Plans
  url: plans/instantly-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/instantly-ai-rate-limits.yml
- type: FinOps
  url: finops/instantly-ai-finops.yml
integrations:
- name: Clay
- name: HubSpot
- name: Salesforce
- name: Pipedrive
- name: Zapier
- name: Make
- name: n8n
- name: Slack
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 23
  pass: local-v1
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://developer.instantly.ai/.well-known/agent-card.json
  grade: conformant
  protocol_version: '0.3'
  control: 404

Instantly API — frequently asked questions

Does Instantly have an API?

Yes. APIs.io lists 29 APIs from Instantly, including Instantly Account API, Instantly Account Campaign Mapping API and Instantly Analytics API, and 26 more.

Is there an OpenAPI specification for the Instantly API?

Yes. APIs.io indexes 29 OpenAPI specifications for Instantly, each linked for download from this page.

How do I authenticate with the Instantly API?

Instantly documents its authentication (http/oauth2 · 2 schemes). The details are profiled on APIs.io as Instantly Ai Authentication.

How much does the Instantly API cost?

Instantly publishes its prices; its Starter (bundle) plan is $94/monthly as of 2026-10-28. APIs.io lists 20 pricing plans for Instantly, with each plan's price, limits and inclusions under Pricing on this page.

Does Instantly have an MCP server?

Yes. APIs.io lists 1 MCP server for Instantly: Remote MCP server at mcp.instantly.ai requiring OAuth.

Is the Instantly API ready for AI agents?

Instantly has a Kin Score of 68.7 out of 100 (exemplar) and an Agent Readiness score of 60.5 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
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