Act! CRM

Act! is a CRM and marketing automation platform built for small and mid-sized businesses, providing contact and activity management, opportunity tracking, email marketing, and pipeline reporting in cloud (Act! Advantage) or on-premises (Act! Premium Desktop) editions. The Act! Web API is a JSON-based REST API that exposes contacts, companies, groups, opportunities, activities, tasks, notes, history, documents and tenant-defined custom entities across 410 operations, with OData v4 query options ($filter, $orderby, $top, $skip, $select, $expand) on collection reads, multipart batching at POST /api/$batch, a webhook registration API, and a published Swagger 2.0 specification. Authentication is a JWT bearer token minted at GET /authorize from HTTP Basic credentials plus an Act-Database-Name header. The API is deployed per database — either on Act! Premium Cloud or on the customer's own IIS server — so the base URL is per-tenant.

Act! CRM publishes 11 API contracts indexed on the APIs.io network, including Act! Web API, Activity Series API, History Types API, and 8 more. Tagged areas include CRM, Marketing Automation, Contact Management, Sales, and Opportunity Management.

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

Act! CRM’s developer surface includes authentication, changelog, documentation, API reference, getting-started guide, support, pricing, and 25 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

74.3/100 exemplar ▬ flat Agent 26/100 agent aware Front door AI 4/6 moderate Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaidFree trial

11 published contracts 5 Agent Skills

CRM Marketing Automation Contact Management SalesOpportunity ManagementOData Small Business

What this lets a business do 3

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

Customer Relationship Management

BC-420

CompaniesContactsNotesSecondaryContacts

POST /api/contacts/{contactId}/secondary-contacts

Sales Management

BC-410

AnalyticsOpportunities

Marketing Management

BC-400

MarketingAutomations

GET /api/contacts/{id}/campaign-results POST /api/MarketingAutomations

What people ask Act! CRM 10

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

Act! CRM Metadata Info API Get a drop-down list “What values are in one particular drop-down list?” Update a drop-down list “Can I rename a drop-down list or change its items?” Delete a drop-down list “Can I remove a drop-down list I no longer use?” Get a field definition for a record type “What are the settings of one field on contacts or opportunities?”

Act! CRM Supplemental Files API Get an activity's attachment “How do I download the file attached to an activity?” Attach a file to an activity “How do I attach a file to an activity?” Delete an activity's attachment “How do I remove an attachment from an activity?” Get a document's attachment “Where do I retrieve the file behind a document record?”

Act! CRM Task Types API Get a task type's regarding options “What regarding options are offered for a given task type?” List task types “What task types are available?” Create a custom task type “How do I add a custom task type?” Get a task type “How do I look up one task type by ID?”

Act! CRM Secondary Contacts API Get a secondary contact “How do I look up one secondary contact under a primary contact?” Replace a secondary contact “How do I overwrite an entire secondary contact record?” Delete a secondary contact “How do I remove an assistant or secondary contact from a primary contact?” Change a few fields on a secondary contact “Can I update only a secondary contact's mobile number?”

Act! CRM Activity Series API Get an activity series (deprecated) “How do I look up a repeating activity series on the legacy ActivitySeries endpoint?” Replace an activity series (deprecated) “Can I fully update a series activity on the old ActivitySeries route?” Delete an activity series (deprecated) “Does deleting a series activity also remove occurrences I rescheduled?” Partially update an activity series (deprecated) “Can I patch just the location of a series activity on the legacy endpoint?”

Act! CRM Custom Entities API Get a custom entity record “How do I fetch one record of a custom entity type?” Save a custom entity record at a given ID “Can I write a custom entity record under an ID I choose?” Delete a custom entity record “How do I delete a record from a custom entity?” List a custom entity's records “Which records exist for one of my custom entities?”

Act! CRM History Types API Get a history type “How do I look up one history type by its id?” Get a history type by name (deprecated) “Can I still look up a history type by name on the old historytypes path?” List history types “What kinds of history entries can be recorded?” List history types (deprecated route) “Does the old /api/historytypes listing still work?”

Act! CRM Sync Data API Find contact IDs by business email “Can I look up contact IDs from a list of business emails?” Find already-synced external IDs “Which external IDs have already been synced?” Find synced calendar UIDs “Which calendar UIDs are already synced, and what external IDs map to them?” Refresh my email integration cache “How do I refresh the email integration cache for my user?”

Act! CRM Document Types API List document history types “What history types can documents be logged under?” List document history types (deprecated) “Is the old historytypes endpoint for documents still available?” Get a document history type by name “Can I look up one document history type by its name?” Get a document history type by name (deprecated) “Does the deprecated historytypes-by-name lookup still work?”

Act! CRM Marketing Automations API Get a contact's campaign results “How did one contact engage with my email campaigns?” List campaigns a contact received “Which campaigns has a given contact been sent?” Record a marketing automation email “Can I log a marketing email sent from an outside campaign tool?”

Kin Score

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

Composite quality — 74.3/100 · exemplar

Contract Quality 11.2 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 15.0 / 15

Operational Transparency 5.9 / 10

Contract Governance 2.9 / 9

Discoverability 5.4 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 5.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 59.9 — up to +10.0 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/act/apis.yml: open an issue on github.com/api-evangelist/act 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 →

Standards implemented 2

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.

OData

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

OpenAPI

measured — observed by APIs.io (published)

APIs 11

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

Act! Web API

JSON-based REST API for the Act! CRM database exposing contacts, companies, groups, opportunities, tasks, activity series, calendar, notes, history, documents, attachments, user...

Act! CRM Activity Series API

The ActivitySeries API from Act! CRM — 2 operation(s) for activityseries.

Act! CRM History Types API

The HistoryTypes API from Act! CRM — 5 operation(s) for historytypes.

Act! CRM Marketing Automations API

The MarketingAutomations API from Act! CRM — 3 operation(s) for marketingautomations.

Act! CRM Metadata Info API

The MetadataInfo API from Act! CRM — 14 operation(s) for metadatainfo.

Act! CRM Secondary Contacts API

The SecondaryContacts API from Act! CRM — 3 operation(s) for secondarycontacts.

Act! CRM Supplemental Files API

The SupplementalFiles API from Act! CRM — 8 operation(s) for supplementalfiles.

Act! CRM Custom Entities API

The Custom Entities API from Act! CRM — 2 operation(s) for custom entities.

Act! CRM Document Types API

The Document Types API from Act! CRM — 4 operation(s) for document types.

Act! CRM Sync Data API

The Sync Data API from Act! CRM — 4 operation(s) for sync data.

Act! CRM Task Types API

The Task Types API from Act! CRM — 4 operation(s) for task types.

Scroll for all 11

Open Collections 31

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

Act! Web API — ActivitySeries

OPEN COLLECTION

Act! Web API — Analytics

OPEN COLLECTION

Act! Web API — Calendar

OPEN COLLECTION

Act! Web API — Companies

OPEN COLLECTION

Act! Web API — Configurations

OPEN COLLECTION

Act! Web API — Contacts

OPEN COLLECTION

Act! Web API — Cors

OPEN COLLECTION

Act! Web API — CustomEntities

OPEN COLLECTION

Act! Web API — Database

OPEN COLLECTION

Act! Web API — DocumentTypes

OPEN COLLECTION

Act! Web API — Documents

OPEN COLLECTION

Act! Web API — Geographics

OPEN COLLECTION

Act! Web API — Groups

OPEN COLLECTION

Act! Web API — History

OPEN COLLECTION

Act! Web API — HistoryTypes

OPEN COLLECTION

Act! Web API — Import

OPEN COLLECTION

Act! Web API — MarketingAutomations

OPEN COLLECTION

Act! Web API — MetadataInfo

OPEN COLLECTION

Act! Web API — Notes

OPEN COLLECTION

Act! Web API — Opportunities

OPEN COLLECTION

Act! Web API — Preferences

OPEN COLLECTION

Act! Web API — Products

OPEN COLLECTION

Act! Web API — SecondaryContacts

OPEN COLLECTION

Act! Web API — SupplementalFiles

OPEN COLLECTION

Act! Web API — SyncData

OPEN COLLECTION

Act! Web API — System

OPEN COLLECTION

Act! Web API — TaskTypes

OPEN COLLECTION

Act! Web API — Tasks

OPEN COLLECTION

Act! Web API — Teams

OPEN COLLECTION

Act! Web API — Users

OPEN COLLECTION

Act! Web API — Webhooks

OPEN COLLECTION

Scroll for all 31

Agent Skills 5

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

act-connect-and-discover

AGENT SKILL

act-log-interactions

AGENT SKILL

act-manage-opportunity-pipeline

AGENT SKILL

act-register-webhooks

AGENT SKILL

act-sync-contacts

AGENT SKILL

Act! CRM API pricing

Prices published by Act! CRM, read 2026-10-28 from www.act.com/pricing/.

Plan	Price
Act! Advantage Standard	$30 USD/user/mo (billed annually) Includes: Full-featured CRM & Mobile App; Basic Email Marketing (includes 2,500 sends/mo); 15 Gb Cloud Storage
Act! Advantage Professional	$45 USD/user/mo (billed annually) Includes: Everything in Standard, plus Email Marketing Plus (includes 25,000 sends/mo), 25 Gb Cloud Storage
Act! Advantage Ultimate	$60 USD/user/mo (billed annually) Includes: Everything in Professional, plus Marketing Automation (includes 50,000 sends/mo), 35 Gb Cloud Storag
Enterprise Engagement	Call for Details Includes: Private Hosting & Custom Deployment Options, Dedicated Project Manager, Custom Enterprise Agreement
Act! Premium Desktop	$40 USD/user/mo (billed annually) Includes: On-premises solution you deploy and manage; networked & offline access
Act! Email Marketing Plus (add-on)	$79/mo/account Includes: 25,000 total sends
Act! Marketing Automation (add-on)	$199/mo/account Includes: 50,000 total sends (includes everything in Act! Email Marketing Plus)
Online Customer Portal / Project Management add-on	$100/month/account

All 9 plans, limits and sources →

Billed by: user · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Act Plans Pricing

9 plans

PLANS

Act Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Act Rate Limits

0 limits

RATE LIMITS

Service Levels 1

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

Act! CRM

SLA

FinOps 1

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

Act Finops

FINOPS

Event Specifications 1

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

Act Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Act! CRM API Rules

43 rules · 33 errors 8 warnings 2 info

SPECTRAL

OpenAPI Overlays 32

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.

Act Activityseries Api Phrasing Overlay

7 actions · phrasing · act-activityseries-api-openapi.yml

GENERATED

Act Analytics Api Phrasing Overlay

30 actions · phrasing · act-analytics-api-openapi.yml

GENERATED

Act Calendar Api Phrasing Overlay

5 actions · phrasing · act-calendar-api-openapi.yml

GENERATED

Act Companies Api Phrasing Overlay

24 actions · phrasing · act-companies-api-openapi.yml

GENERATED

Act Configurations Api Phrasing Overlay

11 actions · phrasing · act-configurations-api-openapi.yml

GENERATED

Act Contacts Api Phrasing Overlay

34 actions · phrasing · act-contacts-api-openapi.yml

GENERATED

Act Cors Api Phrasing Overlay

5 actions · phrasing · act-cors-api-openapi.yml

GENERATED

Act Custom Entities Api Phrasing Overlay

6 actions · phrasing · act-custom-entities-api-openapi.yml

GENERATED

Act Database Api Phrasing Overlay

14 actions · phrasing · act-database-api-openapi.yml

GENERATED

Act Document Types Api Phrasing Overlay

5 actions · phrasing · act-document-types-api-openapi.yml

GENERATED

Act Documents Api Phrasing Overlay

10 actions · phrasing · act-documents-api-openapi.yml

GENERATED

Act Geographics Api Phrasing Overlay

6 actions · phrasing · act-geographics-api-openapi.yml

GENERATED

Act Groups Api Phrasing Overlay

30 actions · phrasing · act-groups-api-openapi.yml

GENERATED

Act History Api Phrasing Overlay

14 actions · phrasing · act-history-api-openapi.yml

GENERATED

Act Historytypes Api Phrasing Overlay

6 actions · phrasing · act-historytypes-api-openapi.yml

GENERATED

Act Import Api Phrasing Overlay

5 actions · phrasing · act-import-api-openapi.yml

GENERATED

Act Marketingautomations Api Phrasing Overlay

4 actions · phrasing · act-marketingautomations-api-openapi.yml

GENERATED

Act Metadatainfo Api Phrasing Overlay

23 actions · phrasing · act-metadatainfo-api-openapi.yml

GENERATED

Act Notes Api Phrasing Overlay

17 actions · phrasing · act-notes-api-openapi.yml

GENERATED

Act Opportunities Api Phrasing Overlay

46 actions · phrasing · act-opportunities-api-openapi.yml

GENERATED

Act Preferences Api Phrasing Overlay

13 actions · phrasing · act-preferences-api-openapi.yml

GENERATED

Act Products Api Phrasing Overlay

7 actions · phrasing · act-products-api-openapi.yml

GENERATED

Act Secondarycontacts Api Phrasing Overlay

8 actions · phrasing · act-secondarycontacts-api-openapi.yml

GENERATED

Act Supplementalfiles Api Phrasing Overlay

17 actions · phrasing · act-supplementalfiles-api-openapi.yml

GENERATED

Act Sync Data Api Phrasing Overlay

5 actions · phrasing · act-sync-data-api-openapi.yml

GENERATED

Act System Api Phrasing Overlay

6 actions · phrasing · act-system-api-openapi.yml

GENERATED

Act Task Types Api Phrasing Overlay

9 actions · phrasing · act-task-types-api-openapi.yml

GENERATED

Act Tasks Api Phrasing Overlay

38 actions · phrasing · act-tasks-api-openapi.yml

GENERATED

Act Teams Api Phrasing Overlay

8 actions · phrasing · act-teams-api-openapi.yml

GENERATED

Act Users Api Phrasing Overlay

18 actions · phrasing · act-users-api-openapi.yml

GENERATED

Act Web Api Overlay

6 actions · servers

DERIVED

Act Webhooks Api Phrasing Overlay

10 actions · phrasing · act-webhooks-api-openapi.yml

GENERATED

Scroll for all 32

Security Posture 4

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

Act Authentication

apiKey/http · 3 schemes

SECURITY

Act Domain Security

TLSv1.3 · DMARC

SECURITY

Act Vulnerability Disclosure

no policy recorded

SECURITY

Act Trust Center

SOC 2, SOC 3, ISO 27001, PCI DSS, HIPAA, FedRAMP

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Lifecycle

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

TrustCenter

TrustCenter

Compliance

Compliance

Operate 6

Status, limits, changes, and where to get help

RateLimits

Deprecation

StatusPage

ChangeLog

Support

HelpCenter

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: act
name: Act! CRM
description: Act! is a CRM and marketing automation platform built for small and mid-sized businesses, providing contact and
  activity management, opportunity tracking, email marketing, and pipeline reporting in cloud (Act! Advantage) or on-premises
  (Act! Premium Desktop) editions. The Act! Web API is a JSON-based REST API that exposes contacts, companies, groups, opportunities,
  activities, tasks, notes, history, documents and tenant-defined custom entities across 410 operations, with OData v4 query
  options ($filter, $orderby, $top, $skip, $select, $expand) on collection reads, multipart batching at POST /api/$batch,
  a webhook registration API, and a published Swagger 2.0 specification. Authentication is a JWT bearer token minted at GET
  /authorize from HTTP Basic credentials plus an Act-Database-Name header. The API is deployed per database — either on Act!
  Premium Cloud or on the customer's own IIS server — so the base URL is per-tenant.
type: Index
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: self-service
  trial: true
  try_now: false
  public: true
  label: Public docs, paid access
  confidence: high
  source:
  - https://www.act.com/developer/
  - https://apimta.act.com/act.web.api/
  - https://www.act.com/pricing/
  - https://www.act.com/trial/act/
  note: Documentation, the Swagger document and the anonymous GET /api/system route are all public and require no account.
    Actually calling the API requires an Act! subscription that includes API access — the API's own error codes 4031 (Subscription
    required) and 4032 (API access permission required) make the entitlement explicit. Act! documents the free Act! Premium
    trial as the route to API access.
  generated: '2026-08-13'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/act.png
tags:
- CRM
- Marketing Automation
- Contact Management
- Sales
- Opportunity Management
- OData
- Small Business
tags_raw:
- CRM
- Customer Relationship Management
- Marketing Automation
- Contact Management
- Sales
- Opportunity Management
- OData
- Small Business
url: https://raw.githubusercontent.com/api-evangelist/act/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-08-13'
specificationVersion: '0.23'
apis:
- aid: act:web-api
  name: Act! Web API
  description: JSON-based REST API for the Act! CRM database exposing contacts, companies, groups, opportunities, tasks, activity
    series, calendar, notes, history, documents, attachments, users, teams, preferences, analytics and tenant-defined custom
    entities — 410 operations across 31 resource areas. Collection reads accept OData v4 query options; requests can be batched
    at POST /api/$batch; webhooks are registered through the API itself. The database schema is discoverable at runtime through
    the MetadataInfo operations because Act! databases are user-extensible. Authentication is a JWT bearer token obtained
    from GET /authorize with HTTP Basic credentials and an Act-Database-Name header.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - CRM
  - REST API
  - OData
  - OpenAPI
  - Webhook
  - Contact Management
  tags_raw:
  - CRM
  - REST API
  - OData
  - OpenAPI
  - Webhooks
  - Contact Management
  properties:
  - type: Documentation
    url: https://www.act.com/developer/
  - type: APIReference
    url: https://apimta.act.com/act.web.api/
  - type: Swagger
    url: https://apimta.act.com/act.web.api/swagger/docs/v1
  - type: Admin Guide
    url: https://www.act.com/uploads/docs/en/webapi_admin_guide.pdf
  - type: OpenAPI
    url: openapi/act-analytics-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-calendar-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-companies-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-configurations-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-contacts-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-cors-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-database-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-documents-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-geographics-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-groups-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-history-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-import-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-notes-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-opportunities-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-preferences-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-products-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-system-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-tasks-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-teams-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-users-api-openapi.yml
  - type: OpenAPI
    url: openapi/act-webhooks-api-openapi.yml
  - type: Overlay
    url: overlays/act-web-api-overlay.yaml
  - type: Webhooks
    url: asyncapi/act-webhooks.yml
  - type: Conventions
    url: conventions/act-conventions.yml
  - type: ErrorCatalog
    url: errors/act-problem-types.yml
  - type: RateLimits
    url: rate-limits/act-rate-limits.yml
  - type: DataModel
    url: data-model/act-data-model.yml
  - type: Sandbox
    url: sandbox/act-sandbox.yml
  - type: X-MCPServerCandidate
    url: mcp/act-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- aid: act:act-activityseries-api
  name: Act! CRM Activity Series API
  description: The ActivitySeries API from Act! CRM — 2 operation(s) for activityseries.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - ActivitySeries
  properties:
  - type: OpenAPI
    url: openapi/act-activityseries-api-openapi.yml
- aid: act:act-historytypes-api
  name: Act! CRM History Types API
  description: The HistoryTypes API from Act! CRM — 5 operation(s) for historytypes.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - HistoryTypes
  properties:
  - type: OpenAPI
    url: openapi/act-historytypes-api-openapi.yml
- aid: act:act-marketingautomations-api
  name: Act! CRM Marketing Automations API
  description: The MarketingAutomations API from Act! CRM — 3 operation(s) for marketingautomations.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - MarketingAutomations
  properties:
  - type: OpenAPI
    url: openapi/act-marketingautomations-api-openapi.yml
- aid: act:act-metadatainfo-api
  name: Act! CRM Metadata Info API
  description: The MetadataInfo API from Act! CRM — 14 operation(s) for metadatainfo.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - MetadataInfo
  properties:
  - type: OpenAPI
    url: openapi/act-metadatainfo-api-openapi.yml
- aid: act:act-secondarycontacts-api
  name: Act! CRM Secondary Contacts API
  description: The SecondaryContacts API from Act! CRM — 3 operation(s) for secondarycontacts.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - SecondaryContacts
  properties:
  - type: OpenAPI
    url: openapi/act-secondarycontacts-api-openapi.yml
- aid: act:act-supplementalfiles-api
  name: Act! CRM Supplemental Files API
  description: The SupplementalFiles API from Act! CRM — 8 operation(s) for supplementalfiles.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - SupplementalFiles
  properties:
  - type: OpenAPI
    url: openapi/act-supplementalfiles-api-openapi.yml
- aid: act:act-custom-entities-api
  name: Act! CRM Custom Entities API
  description: The Custom Entities API from Act! CRM — 2 operation(s) for custom entities.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - Custom Entities
  properties:
  - type: OpenAPI
    url: openapi/act-custom-entities-api-openapi.yml
- aid: act:act-document-types-api
  name: Act! CRM Document Types API
  description: The Document Types API from Act! CRM — 4 operation(s) for document types.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - Document Types
  properties:
  - type: OpenAPI
    url: openapi/act-document-types-api-openapi.yml
- aid: act:act-sync-data-api
  name: Act! CRM Sync Data API
  description: The Sync Data API from Act! CRM — 4 operation(s) for sync data.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - Sync Data
  properties:
  - type: OpenAPI
    url: openapi/act-sync-data-api-openapi.yml
- aid: act:act-task-types-api
  name: Act! CRM Task Types API
  description: The Task Types API from Act! CRM — 4 operation(s) for task types.
  humanURL: https://www.act.com/developer/
  baseURL: https://apimta.act.com/act.web.api
  tags:
  - Task Types
  properties:
  - type: OpenAPI
    url: openapi/act-task-types-api-openapi.yml
common:
- type: RateLimits
  url: rate-limits/act-rate-limits.yml
- type: CapabilityMap
  url: capabilities/act-capability-edges.yml
  name: Act! CRM Business Capability Map
- type: Authentication
  url: authentication/act-authentication.yml
- type: DomainSecurity
  url: security/act-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/act-vulnerability-disclosure.yml
- type: Security
  url: security/act-vulnerability-disclosure.yml
- type: TrustCenter
  url: security/act-trust-center.yml
- type: Compliance
  url: security/act-trust-center.yml
- type: Conformance
  url: conformance/act-conformance.yml
- type: Lifecycle
  url: lifecycle/act-lifecycle.yml
- type: Deprecation
  url: https://www.act.com/obsolescence-policy/
- type: StatusPage
  url: https://status.act.com/
- type: ChangeLog
  url: changelog/act-changelog.yml
- type: Plans
  url: plans/act-plans-pricing.yml
- type: Packages
  url: packages/act-packages.yml
- type: LLMsTxt
  url: llms/act-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/actsoftware
- type: Website
  url: https://www.act.com
- type: DeveloperPortal
  url: https://www.act.com/developer/
- type: Documentation
  url: https://www.act.com/developer/
- type: APIReference
  url: https://apimta.act.com/act.web.api/
- type: GettingStarted
  url: https://www.act.com/resources/getting-started/act-cloud/
- type: Support
  url: https://support.act.com/
- type: HelpCenter
  url: https://help.act.com/
- type: GitHubOrganization
  url: https://github.com/Swiftpage
- type: Pricing
  url: https://www.act.com/pricing/
- type: SignUp
  url: https://www.act.com/trial/act/
- type: Login
  url: https://my.act.com/en-us/myact
- type: TermsOfService
  url: https://www.act.com/legal/terms-of-service/
- type: PrivacyPolicy
  url: https://www.act.com/legal/privacy-policy/
- type: Blog
  url: https://www.act.com/blog/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 56
  pass: local-v1

Act! CRM API — frequently asked questions

Does Act! CRM have an API?

Yes. APIs.io lists 11 APIs from Act! CRM, including Act! Web API, Act! CRM Activity Series API and Act! CRM History Types API, and 8 more.

Is there an OpenAPI specification for the Act! CRM API?

Yes. APIs.io indexes 11 OpenAPI specifications for Act! CRM, each linked for download from this page.

How do I authenticate with the Act! CRM API?

Act! CRM uses bearer-token authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Act Authentication.

How much does the Act! CRM API cost?

Act! CRM publishes its prices; its Act! Advantage Standard plan is $30 USD/user/mo (billed annually) as of 2026-10-28. APIs.io lists 9 pricing plans for Act! CRM, with each plan's price, limits and inclusions under Pricing on this page.

Is the Act! CRM API ready for AI agents?

Act! CRM has a Kin Score of 74.3 out of 100 (exemplar) and an Agent Readiness score of 25.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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