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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.
4 APIs
13 Features
Project Management Issue Tracking Productivity SaaS GraphQL Developer Tools Agents
Linear publishes 4 APIs on the APIs.io network. Tagged areas include Project Management, Issue Tracking, Productivity, SaaS, and GraphQL.
Linear’s developer surface includes signup flow, documentation, API reference, authentication, SDKs, pricing, changelog, and 21 more developer resources.
Single GraphQL endpoint exposing Linear's full data model - issues, projects, initiatives, cycles, teams, users, comments, documents, customers, customer requests, and more. Aut...
Outbound webhooks for data-change events across Issues, Issue attachments, Issue comments, Issue labels, Comment reactions, Projects, Project updates, Documents, Initiatives, In...
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 ...
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 an...
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
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.
image: https://linear.app/static/og/homepage.jpg
tags:
- Project Management
- Issue Tracking
- Productivity
- SaaS
- GraphQL
- Developer Tools
- Agents
created: '2026-05-23'
modified: '2026-05-23'
specificationVersion: '0.18'
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
- 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
- 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:
- 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:
- 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
- AI
- Automation
properties:
- url: https://linear.app/developers/agents
type: Documentation
common:
- 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: SDK
- 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'
maintainers:
- FN: Kin Lane
email: [email protected]
- FN: APIs.json
email: [email protected]
- name: Linear
url: https://linear.app