Capsule CRM

Capsule is a simple online CRM for small and midsize businesses that manages contacts, sales pipelines, tasks, projects, and email integration with a focus on ease of use. The Capsule API v2 is a REST/JSON service exposing parties (people and organisations), opportunities, projects, tasks, cases, users, and custom fields for integration with marketing, finance, and productivity tools. Authentication uses a Bearer token (personal access token or OAuth 2 access token) against the base URL https://api.capsulecrm.com/api/v2/.

Capsule CRM publishes 5 APIs on the APIs.io network, including Entries API, Opportunities API, Parties API, and 2 more. Tagged areas include CRM, Sales, Contacts, Pipeline Management, and Tasks.

Capsule CRM’s developer surface includes authentication, documentation, pricing, signup flow, support, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.6/100 thin ▬ flat Agent 38/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessSelf serve

6 APIs 1 MCP Servers

CRMSalesContactsPipeline ManagementTasksProjectsSMB

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 31.6/100 · thin

Contract Quality 13.4 / 25

Developer Ergonomics 8.7 / 20

Commercial Clarity 2.1 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 38/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/capsule-crm: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

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

MCP Servers 1

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

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: capsule-crm
name: Capsule CRM
description: Capsule is a simple online CRM for small and midsize businesses that manages contacts, sales pipelines, tasks,
  projects, and email integration with a focus on ease of use. The Capsule API v2 is a REST/JSON service exposing parties
  (people and organisations), opportunities, projects, tasks, cases, users, and custom fields for integration with marketing,
  finance, and productivity tools. Authentication uses a Bearer token (personal access token or OAuth 2 access token) against
  the base URL https://api.capsulecrm.com/api/v2/.
type: Index
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/capsule-crm.png
tags:
- CRM
- Sales
- Contacts
- Pipeline Management
- Tasks
- Projects
- SMB
url: https://raw.githubusercontent.com/api-evangelist/capsule-crm/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-07-12'
specificationVersion: '0.19'
apis:
- aid: capsule-crm:v2-api
  name: Capsule CRM API v2
  description: REST API for managing Capsule parties (contacts and organisations), opportunities, projects (cases), tasks,
    users, tags, and custom fields. Each request must include an Authorization Bearer token obtained from a personal access
    token or the OAuth 2 authorization code flow.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - CRM
  - Contacts
  - Opportunities
  - Projects
  - Tasks
  - OAuth
  properties:
  - type: Documentation
    url: https://developer.capsulecrm.com/
  - type: Authentication
    url: https://developer.capsulecrm.com/v2/overview/authentication
- aid: capsule-crm:capsule-crm-entries-api
  name: Capsule CRM Entries API
  description: The Entries API from Capsule CRM — 2 operation(s) for entries.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - Entries
  properties:
  - type: OpenAPI
    url: openapi/capsule-crm-entries-api-openapi.yml
- aid: capsule-crm:capsule-crm-opportunities-api
  name: Capsule CRM Opportunities API
  description: The Opportunities API from Capsule CRM — 3 operation(s) for opportunities.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - Opportunities
  properties:
  - type: OpenAPI
    url: openapi/capsule-crm-opportunities-api-openapi.yml
- aid: capsule-crm:capsule-crm-parties-api
  name: Capsule CRM Parties API
  description: The Parties API from Capsule CRM — 4 operation(s) for parties.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - Parties
  properties:
  - type: OpenAPI
    url: openapi/capsule-crm-parties-api-openapi.yml
- aid: capsule-crm:capsule-crm-projects-api
  name: Capsule CRM Projects API
  description: The Projects API from Capsule CRM — 2 operation(s) for projects.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/capsule-crm-projects-api-openapi.yml
- aid: capsule-crm:capsule-crm-tasks-api
  name: Capsule CRM Tasks API
  description: The Tasks API from Capsule CRM — 2 operation(s) for tasks.
  humanURL: https://developer.capsulecrm.com/
  baseURL: https://api.capsulecrm.com/api/v2/
  tags:
  - Tasks
  properties:
  - type: OpenAPI
    url: openapi/capsule-crm-tasks-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/capsule-crm-agentic-access.yml
- type: DomainSecurity
  url: security/capsule-crm-domain-security.yml
- type: Authentication
  url: authentication/capsule-crm-authentication.yml
- type: Website
  url: https://capsulecrm.com
- type: DeveloperPortal
  url: https://developer.capsulecrm.com
- type: Documentation
  url: https://developer.capsulecrm.com/
- type: Pricing
  url: https://capsulecrm.com/pricing/
- type: Signup
  url: https://capsulecrm.com/signup/
- type: Support
  url: https://support.capsulecrm.com
- type: LinkedIn
  url: https://www.linkedin.com/company/capsule-crm
- url: https://capsulecrm.com/blog/
  type: Blog
- name: MCP Server
  url: https://capsulecrm.com/blog/what-if-you-could-just-ask-your-crm-introducing-capsule-mcp/
  type: MCPServer
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Capsule CRM

Kin Score

APIs 6

Capsule CRM API v2

Capsule CRM Entries API

Capsule CRM Opportunities API

Capsule CRM Parties API

Capsule CRM Projects API

Capsule CRM Tasks API

Open Collections 1

Capsule CRM API v2

MCP Servers 1

MCP Server

Security Posture 2

Capsule Crm Authentication

Capsule Crm Domain Security

Agentic Access 1

Capsule Crm Agentic Access

Resources