Plane

Plane is an open-source project and product management tool for planning, tracking, and shipping work across workspaces, projects, cycles, and modules. It is available as a self-hosted Community Edition (AGPL v3.0) and as Plane Cloud, and exposes a REST API at https://api.plane.so/api/v1 secured with an X-API-Key header for managing projects, work items, cycles, modules, states, labels, and members.

Plane publishes 12 APIs on the APIs.io network, including Cycle Work Items API, Cycles API, Labels API, and 9 more. Tagged areas include Project Management, Issue Tracking, Work Management, Open-Source, and Productivity.

Plane’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.6/100 thin ▬ flat Agent 28/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Project Management Issue Tracking Work Management Open-Source Productivity

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 37.6/100 · thin

Contract Quality 11.2 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 8.5 / 18

Operational Transparency 2.8 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 28/100 · agent aware

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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

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.

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 github.com/api-evangelist/plane-so: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 12

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

Plane Cycle Work Items API

The Cycle Work Items API from Plane — 3 operation(s) for cycle work items.

Plane Cycles API

The Cycles API from Plane — 2 operation(s) for cycles.

Plane Labels API

The Labels API from Plane — 2 operation(s) for labels.

Plane Members API

The Members API from Plane — 1 operation(s) for members.

Plane Module Work Items API

The Module Work Items API from Plane — 2 operation(s) for module work items.

Plane Modules API

The Modules API from Plane — 2 operation(s) for modules.

Plane Projects API

The Projects API from Plane — 2 operation(s) for projects.

Plane States API

The States API from Plane — 2 operation(s) for states.

Plane Work Item Comments API

The Work Item Comments API from Plane — 2 operation(s) for work item comments.

Plane Work Item Links API

The Work Item Links API from Plane — 2 operation(s) for work item links.

Plane Work Items API

The Work Items API from Plane — 2 operation(s) for work items.

Plane REST API

The Plane REST API provides 180+ endpoints for managing all aspects of project management workspaces including projects, work items, cycles, modules, pages, analytics, intake, a...

Scroll for all 12

Open Collections 13

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

API Collection

OPEN COLLECTION

Plane Cycle Work Items API

OPEN COLLECTION

Plane Cycle Work Items Cycles API

OPEN COLLECTION

Plane Cycle Work Items Labels API

OPEN COLLECTION

Plane Cycle Work Items Members API

OPEN COLLECTION

Plane Cycle Work Items Module Work Items API

OPEN COLLECTION

Plane Cycle Work Items Modules API

OPEN COLLECTION

Plane Cycle Work Items Projects API

OPEN COLLECTION

Plane Cycle Work Items States API

OPEN COLLECTION

Plane Cycle Work Items Work Item Comments API

OPEN COLLECTION

Plane Cycle Work Items Work Item Links API

OPEN COLLECTION

Plane Cycle Work Items API

OPEN COLLECTION

Plane API

OPEN COLLECTION

Scroll for all 13

Pricing Plans 1

Published pricing tiers and plan structures.

Plane So Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Plane So Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Plane So Finops

FINOPS

Security Posture 3

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

Plane So Authentication

apiKey · 1 scheme

SECURITY

Plane So Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Plane So Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Agentic Access 1

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

Plane So Agentic Access

48 operations · 29 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: plane-so
url: https://raw.githubusercontent.com/api-evangelist/plane-so/refs/heads/main/apis.yml
name: Plane
kind: company
description: Plane is an open-source project and product management tool for planning, tracking, and shipping work across
  workspaces, projects, cycles, and modules. It is available as a self-hosted Community Edition (AGPL v3.0) and as Plane Cloud,
  and exposes a REST API at https://api.plane.so/api/v1 secured with an X-API-Key header for managing projects, work items,
  cycles, modules, states, labels, and members.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/plane-so.png
tags:
- Project Management
- Issue Tracking
- Work Management
- Open-Source
- Productivity
tags_raw:
- Project Management
- Issue Tracking
- Work Management
- Open Source
- Productivity
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.23'
apis:
- aid: plane-so:plane-so-cycle-work-items-api
  name: Plane Cycle Work Items API
  description: The Cycle Work Items API from Plane — 3 operation(s) for cycle work items.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Cycle Work Items
  properties:
  - type: OpenAPI
    url: openapi/plane-so-cycle-work-items-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-cycles-api
  name: Plane Cycles API
  description: The Cycles API from Plane — 2 operation(s) for cycles.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Cycles
  properties:
  - type: OpenAPI
    url: openapi/plane-so-cycles-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-labels-api
  name: Plane Labels API
  description: The Labels API from Plane — 2 operation(s) for labels.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Labels
  properties:
  - type: OpenAPI
    url: openapi/plane-so-labels-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-members-api
  name: Plane Members API
  description: The Members API from Plane — 1 operation(s) for members.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Members
  properties:
  - type: OpenAPI
    url: openapi/plane-so-members-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-module-work-items-api
  name: Plane Module Work Items API
  description: The Module Work Items API from Plane — 2 operation(s) for module work items.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Module Work Items
  properties:
  - type: OpenAPI
    url: openapi/plane-so-module-work-items-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-modules-api
  name: Plane Modules API
  description: The Modules API from Plane — 2 operation(s) for modules.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Modules
  properties:
  - type: OpenAPI
    url: openapi/plane-so-modules-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-projects-api
  name: Plane Projects API
  description: The Projects API from Plane — 2 operation(s) for projects.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/plane-so-projects-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-states-api
  name: Plane States API
  description: The States API from Plane — 2 operation(s) for states.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - States
  properties:
  - type: OpenAPI
    url: openapi/plane-so-states-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-work-item-comments-api
  name: Plane Work Item Comments API
  description: The Work Item Comments API from Plane — 2 operation(s) for work item comments.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Work Item Comments
  properties:
  - type: OpenAPI
    url: openapi/plane-so-work-item-comments-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-work-item-links-api
  name: Plane Work Item Links API
  description: The Work Item Links API from Plane — 2 operation(s) for work item links.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Work Item Links
  properties:
  - type: OpenAPI
    url: openapi/plane-so-work-item-links-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- aid: plane-so:plane-so-work-items-api
  name: Plane Work Items API
  description: The Work Items API from Plane — 2 operation(s) for work items.
  humanURL: https://developers.plane.so/api-reference/project/overview
  baseURL: https://api.plane.so/api/v1
  tags:
  - Work Items
  properties:
  - type: OpenAPI
    url: openapi/plane-so-work-items-api-openapi.yml
  - type: Documentation
    url: https://developers.plane.so/api-reference/project/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/introduction
  - type: PostmanCollection
    url: collections/plane-so.postman_collection.json
  - type: OpenCollection
    url: collections/plane-so.opencollection.json
  - type: Documentation
    url: https://developers.plane.so/api-reference/issue/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/cycle/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/module/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/state/overview
  - type: APIReference
    url: https://developers.plane.so/api-reference/label/overview
  - type: Documentation
    url: https://developers.plane.so/api-reference/member/overview
- name: Plane REST API
  description: The Plane REST API provides 180+ endpoints for managing all aspects of project management workspaces including
    projects, work items, cycles, modules, pages, analytics, intake, and team members. The API uses standard HTTP verbs, cursor-based
    pagination, and JSON request/response bodies with predictable resource-oriented URLs. Authentication is supported via
    personal access tokens (X-API-Key header) or OAuth 2.0 bearer tokens for third-party applications.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.plane.so/api-reference/introduction
  baseURL: https://api.plane.so/api/v1/
  tags:
  - Project Management
  - Issues
  - Cycles
  - Modules
  - Pages
  - Analytics
  - Workspace
  properties:
  - type: Documentation
    url: https://developers.plane.so/api-reference/introduction
  - type: OpenAPI
    url: https://developers.plane.so/api-reference/introduction
common:
- type: AgenticAccess
  url: agentic-access/plane-so-agentic-access.yml
- type: TrustCenter
  url: security/plane-so-trust-center.yml
- type: DomainSecurity
  url: security/plane-so-domain-security.yml
- type: Authentication
  url: authentication/plane-so-authentication.yml
- type: GitHubOrganization
  url: https://github.com/makeplane
- type: LinkedIn
  url: https://www.linkedin.com/company/planepowers
- type: Website
  url: https://plane.so
- type: Documentation
  url: https://developers.plane.so
- type: Plans
  url: plans/plane-so-plans-pricing.yml
- type: RateLimits
  url: rate-limits/plane-so-rate-limits.yml
- type: FinOps
  url: finops/plane-so-finops.yml
- url: https://plane.so/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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