Linear

Linear is an issue tracking and product development platform for software teams covering Intake, Plan, Build, Diffs (code review), and Monitor. The public developer surface is a GraphQL API at https://api.linear.app/graphql with OAuth 2.0 and personal API key auth, signed webhooks, a TypeScript SDK, an Agent SDK / Agent Interaction Guidelines for AI agents, and integrations with GitHub, Slack, Figma, Cursor, Codex, GitHub Copilot, and others. Serves 25,000+ product teams.

Linear publishes 4 APIs on the APIs.io network. Tagged areas include Project Management, Issue Tracking, Productivity, Software-as-a-Service, and GraphQL.

Linear’s developer surface includes signup flow, documentation, API reference, authentication, pricing, changelog, engineering blog, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.1/100 developing ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

AccessFree

4 APIs 13 Features

Project Management Issue Tracking Productivity Software-as-a-Service GraphQL Developer Tools Agents

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 41.1/100 · developing

Contract Quality 0.0 / 25

Developer Ergonomics 8.6 / 20

Access Clarity 16.3 / 20

Operational Transparency 9.9 / 13

Contract Governance 0.0 / 12

Discoverability 6.3 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 0 / 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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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/linear-app: 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 4

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

GraphQL 1

GraphQL schemas published by this provider.

Rate Limits 1

Documented rate limits and quota policies.

Linear App Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Linear App Finops

FINOPS

Features 13

Notable capabilities this provider offers.

GraphQL API at https://api.linear.app/graphql with full introspection

OAuth 2.0 with PKCE plus personal API key auth

Strongly-typed TypeScript SDK (v2.x) with webhook helpers

HMAC-SHA256 signed webhooks via Linear-Signature header

15+ webhook resource types (Issues, Projects, Initiatives, Cycles, Customers, etc.)

Apollo Studio playground for live schema exploration

Agents framework with Agent Interaction Guidelines

Native integrations with GitHub, Slack, Figma, Sentry, Zendesk

AI agent integrations including Codex, GitHub Copilot, Cursor

Triage inbox for routing intake into actionable issues

Diffs for structural code review visualization

Mobile apps for iOS and Android

25,000+ product teams using Linear

Scroll for all 13

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText

LlmsText

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Webhooks

Webhooks

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

GitHubOrganization

GitHubOrganization

SourceCode

SourceCode

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Security

APIKeys

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 4

Status, limits, changes, and where to get help

RateLimits

StatusPage

ChangeLog

Slack

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

Website

Website

Blog

Blog

X (Twitter)

X (Twitter)

Other 5

Properties that don't map to a standard resource type

Agents

Enterprise

Startups

Sales

DPA

Source (apis.yml)

aid: linear-app
name: Linear
description: Linear is an issue tracking and product development platform for software teams covering Intake, Plan, Build,
  Diffs (code review), and Monitor. The public developer surface is a GraphQL API at https://api.linear.app/graphql with OAuth
  2.0 and personal API key auth, signed webhooks, a TypeScript SDK, an Agent SDK / Agent Interaction Guidelines for AI agents,
  and integrations with GitHub, Slack, Figma, Cursor, Codex, GitHub Copilot, and others. Serves 25,000+ product teams.
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://linear.app/static/og/homepage.jpg
tags:
- Project Management
- Issue Tracking
- Productivity
- Software-as-a-Service
- GraphQL
- Developer Tools
- Agents
tags_raw:
- Project Management
- Issue Tracking
- Productivity
- SaaS
- GraphQL
- Developer Tools
- Agents
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.23'
position: Consuming
kind: contract
access: 3rd-Party
apis:
- aid: linear-app:linear-graphql-api
  name: Linear GraphQL API
  description: Single GraphQL endpoint exposing Linear's full data model - issues, projects, initiatives, cycles, teams, users,
    comments, documents, customers, customer requests, and more. Auth via OAuth 2.0 Bearer or personal API key. Schema is
    introspectable and explorable via Apollo Studio.
  tags:
  - GraphQL
  - Issues
  - Project
  - Team
  - Cycles
  - Comments
  tags_raw:
  - GraphQL
  - Issues
  - Projects
  - Teams
  - Cycles
  - Comments
  properties:
  - url: https://linear.app/developers/graphql
    type: Documentation
  - url: https://linear.app/developers
    type: APIReference
  - url: https://api.linear.app/graphql
    type: BaseURL
  - url: https://linear.app/developers/oauth-2-0-authentication
    type: Authentication
  - url: graphql/linear-app-graphql.md
    type: GraphQL
- aid: linear-app:linear-webhooks
  name: Linear Webhooks
  description: Outbound webhooks for data-change events across Issues, Issue attachments, Issue comments, Issue labels, Comment
    reactions, Projects, Project updates, Documents, Initiatives, Initiative updates, Cycles, Customers, Customer Requests,
    Users, plus Issue SLA and OAuthApp revoked. Payloads are signed with HMAC-SHA256 in the Linear-Signature header.
  tags:
  - Webhook
  - Event
  - Async
  tags_raw:
  - Webhooks
  - Events
  - Async
  properties:
  - url: https://linear.app/developers/webhooks
    type: Documentation
  - url: https://linear.app/settings/api
    type: Configuration
- aid: linear-app:linear-oauth
  name: Linear OAuth 2.0
  description: OAuth 2.0 authorization-code and PKCE flows for third-party apps. Authorize at https://linear.app/oauth/authorize,
    exchange tokens at https://api.linear.app/oauth/token. Scopes include read, write, issues:create, comments:create, timeSchedule:write,
    and admin.
  tags:
  - Authentication
  - Authorization
  tags_raw:
  - OAuth
  - Authentication
  - Authorization
  properties:
  - url: https://linear.app/developers/oauth-2-0-authentication
    type: Documentation
  - url: https://linear.app/oauth/authorize
    type: AuthorizationURL
  - url: https://api.linear.app/oauth/token
    type: TokenURL
- aid: linear-app:linear-agents-api
  name: Linear Agents API
  description: Capabilities for AI agents to operate as first-class actors inside Linear - Agent Interaction Guidelines (AIG),
    signals, and best-practice patterns for interacting with users and issues.
  tags:
  - Agents
  - Artificial Intelligence
  - Automation
  tags_raw:
  - Agents
  - AI
  - Automation
  properties:
  - url: https://linear.app/developers/agents
    type: Documentation
common:
- type: TrustCenter
  url: security/linear-app-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/linear-app-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/linear-app-domain-security.yml
- url: https://linear.app
  type: Website
- url: https://linear.app/signup
  type: Signup
- url: https://linear.app/login
  type: Login
- url: https://linear.app/docs
  type: Documentation
- url: https://linear.app/developers
  type: APIReference
- url: https://linear.app/developers/graphql
  type: APIReference
- url: https://linear.app/developers/oauth-2-0-authentication
  type: Authentication
- url: https://linear.app/developers/sdk
  type: SDKs
- url: https://linear.app/developers/webhooks
  type: Webhooks
- url: https://linear.app/developers/agents
  type: Agents
- url: https://linear.app/developers/rate-limiting
  type: RateLimits
- url: https://linearstatus.com/
  type: StatusPage
- url: https://linear.app/pricing
  type: Pricing
- url: https://linear.app/enterprise
  type: Enterprise
- url: https://linear.app/startups
  type: Startups
- url: https://linear.app/contact/sales
  type: Sales
- url: https://linear.app/security
  type: Security
- url: https://linear.app/privacy
  type: PrivacyPolicy
- url: https://linear.app/terms
  type: TermsOfService
- url: https://linear.app/dpa
  type: DPA
- url: https://linear.app/integrations
  type: Integrations
- url: https://linear.app/changelog
  type: ChangeLog
- url: https://linear.app/blog
  type: Blog
- url: https://linear.app/join-slack
  type: Slack
- url: https://github.com/linear
  type: GitHubOrganization
- url: https://github.com/linear/linear
  type: SourceCode
- url: https://x.com/linear
  type: X (Twitter)
- url: https://www.youtube.com/@linear
  type: YouTube
- url: https://linear.app/settings/api
  type: APIKeys
- type: Features
  data:
  - GraphQL API at https://api.linear.app/graphql with full introspection
  - OAuth 2.0 with PKCE plus personal API key auth
  - Strongly-typed TypeScript SDK (v2.x) with webhook helpers
  - HMAC-SHA256 signed webhooks via Linear-Signature header
  - 15+ webhook resource types (Issues, Projects, Initiatives, Cycles, Customers, etc.)
  - Apollo Studio playground for live schema exploration
  - Agents framework with Agent Interaction Guidelines
  - Native integrations with GitHub, Slack, Figma, Sentry, Zendesk
  - AI agent integrations including Codex, GitHub Copilot, Cursor
  - Triage inbox for routing intake into actionable issues
  - Diffs for structural code review visualization
  - Mobile apps for iOS and Android
  - 25,000+ product teams using Linear
  sources:
  - https://linear.app
  - https://linear.app/developers
  - https://linear.app/developers/graphql
  updated: '2026-05-23'
- type: LlmsText
  url: https://linear.app/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
- name: Linear
  url: https://linear.app

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