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 is listed with 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 29 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

38.1/100 thin ▬ flat Agent 36/100 agent ready Front door AI 5/6 prominent Heartbeat 95/100 alive open core · MIT Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFree

4 APIs 1 MCP Servers 13 Features

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

Kin Score

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

Composite quality — 38.1/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 9.8 / 17

Operational Transparency 6.7 / 11

Contract Governance 0.0 / 10

Discoverability 5.4 / 9

Regulatory Posture 6.0 / 15

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 0 / 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 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

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Contract Governance scores 0.0 — up to +12.0 composite points
Developer Ergonomics scores 42.9 — up to +11.4 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/linear-app/apis.yml: open an issue on github.com/api-evangelist/linear-app 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Workplace Collaboration App Marketplaces	builds-on	52.2	1	1
Agent Skills (SKILL.md packages)	builds-on	52.2	1	1
Raycast Store Extensions (first-party publishers + community-wrapped products)	builds-on	52.2	1	1
Obsidian Community Plugins (third-party APIs the Obsidian plugin ecosystem integrates)	builds-on	52.2	1	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

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.

GraphQL

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

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

APIs 4

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

Linear GraphQL API

Single GraphQL endpoint exposing Linear's full data model - issues, projects, initiatives, cycles, teams, users, comments, documents, customers, customer requests, and more. Aut...

Linear Webhooks

Outbound webhooks for data-change events across Issues, Issue attachments, Issue comments, Issue labels, Comment reactions, Projects, Project updates, Documents, Initiatives, In...

Linear OAuth 2.0

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 ...

Linear Agents API

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...

MCP Servers 1

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

Linear MCP Server

Remote MCP server at mcp.linear.app over HTTP.

MCP SERVER

GraphQL 1

GraphQL schemas published by this provider.

Linear GraphQL API

Single GraphQL endpoint exposing Linear's full data model - issues, projects, initiatives, cycles, teams, users, comments, documents, customers, customer requests, and more. Aut...

GRAPHQL

Linear API pricing

Not yet checked against Linear's own pricing page. Compiled by API Evangelist on 2026-05-22; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Pro Tier Default: 120 requests per minute

Compiled by API Evangelist, not yet checked against Linear's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Linear App Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Linear App Rate Limits

2 limits

RATE LIMITS

Service Levels 1

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

Linear

SLA

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

Security Posture 3

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

Linear App Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Linear App Vulnerability Disclosure

security.txt · contact published

SECURITY

Linear App Trust Center

SOC 2, ISO 27001, HIPAA, GDPR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Linear App Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Agentic Access 1

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

Linear App Agentic Access

2 operations · 2 acting

AGENTIC

Resources

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 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

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 7

Authentication, authorization, and security posture

OAuthScopes

OAuthScopes

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Security

APIKeys

Scroll for all 7

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 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

PrivacyPolicy

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.
deliveryModel:
  model: open-core
  license: MIT
  license_evidence:
    repo: linear/linear
    spdx: MIT
    stars: 1622
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - pricing
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  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:
  - OAuth
  - 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: Plans
  url: plans/linear-app-plans-pricing.yml
- type: FinOps
  url: finops/linear-app-finops.yml
- type: AgenticAccess
  url: agentic-access/linear-app-agentic-access.yml
- type: OAuthScopes
  url: scopes/linear-app-scopes.yml
- 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

Linear API — frequently asked questions

Does Linear have an API?

Yes. APIs.io lists 4 APIs from Linear, including Linear GraphQL API, Linear Webhooks and Linear OAuth 2.0, and 1 more.

How much does the Linear API cost?

APIs.io lists 1 pricing plan for Linear, with each plan's price, limits and inclusions under Pricing on this page.

Does Linear have an MCP server?

Yes. APIs.io lists 1 MCP server for Linear: Remote MCP server at mcp.linear.app over HTTP.

Is the Linear API ready for AI agents?

Linear has a Kin Score of 38.1 out of 100 (thin) and an Agent Readiness score of 35.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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