Linear

API Endpoint

Linear uses GraphQL at: https://api.linear.app/graphql

All requests need:

-H "Authorization: $(printenv LINEAR_API_KEY)" \
-H "Content-Type: application/json"

Note: No "Bearer" prefix for Linear API keys.

Common Queries

List My Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { assignedIssues(first: 20) { nodes { identifier title state { name } priority } } } }"}' | jq '.data.viewer.assignedIssues.nodes'

List All Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(first: 50) { nodes { identifier title state { name } assignee { name } priority } } }"}' | jq '.data.issues.nodes'

Get Issue by ID

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issue(id: \"ISSUE_UUID\") { identifier title description state { name } assignee { name } priority labels { nodes { name } } } }"}'

Search Issues by Identifier (e.g., ENG-123)

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issueSearch(query: \"ENG-123\", first: 5) { nodes { identifier title state { name } } } }"}'

List Teams

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ teams { nodes { id name key } } }"}' | jq '.data.teams.nodes'

List Projects

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ projects(first: 20) { nodes { id name state progress } } }"}' | jq '.data.projects.nodes'

List Workflow States

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ workflowStates { nodes { id name type } } }"}' | jq '.data.workflowStates.nodes'

List Labels

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issueLabels { nodes { id name color } } }"}' | jq '.data.issueLabels.nodes'

Get Current User Info

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { id name email } }"}'

List Current Cycle Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ cycles(filter: { isActive: { eq: true } }, first: 1) { nodes { name issues { nodes { identifier title state { name } } } } } }"}'

Mutations (Creating/Updating)

Create Issue

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation CreateIssue($input: IssueCreateInput!) { issueCreate(input: $input) { success issue { identifier title url } } }",
    "variables": {
      "input": {
        "teamId": "TEAM_UUID",
        "title": "Issue title",
        "description": "Issue description",
        "priority": 2
      }
    }
  }'

Add Comment to Issue

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation AddComment($input: CommentCreateInput!) { commentCreate(input: $input) { success comment { id body } } }",
    "variables": {
      "input": {
        "issueId": "ISSUE_UUID",
        "body": "Comment text here"
      }
    }
  }'

Update Issue State

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "mutation UpdateIssue($id: String!, $input: IssueUpdateInput!) { issueUpdate(id: $id, input: $input) { success issue { identifier state { name } } } }",
    "variables": {
      "id": "ISSUE_UUID",
      "input": {
        "stateId": "STATE_UUID"
      }
    }
  }'

Common Workflows

Get My Open Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ viewer { assignedIssues(filter: { state: { type: { nin: [\"completed\", \"canceled\"] } } }, first: 50) { nodes { identifier title state { name } priority dueDate } } } }"}' | jq '.data.viewer.assignedIssues.nodes'

Get High Priority Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issues(filter: { priority: { lte: 2 } }, first: 20) { nodes { identifier title priority state { name } assignee { name } } } }"}' | jq '.data.issues.nodes'

Get Issues in a Project

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ project(id: \"PROJECT_UUID\") { name issues { nodes { identifier title state { name } } } } }"}'

Search Issues

curl -s -X POST "https://api.linear.app/graphql" \
  -H "Authorization: $(printenv LINEAR_API_KEY)" \
  -H "Content-Type: application/json" \
  -d '{"query": "{ issueSearch(query: \"search term\", first: 10) { nodes { identifier title description state { name } } } }"}'

Filter Syntax

Linear supports filtering with comparison operators:

Priority Values

• 0 - No priority
• 1 - Urgent
• 2 - High
• 3 - Medium
• 4 - Low

State Types

• backlog - Not started
• unstarted - To do
• started - In progress
• completed - Done
• canceled - Canceled

Notes

• Linear uses UUIDs for IDs (not the ENG-123 identifiers)
• Use issueSearch to find issues by identifier
• GraphQL requires exact field selection - add fields you need
• API key permissions control what you can access
• Get your API key at: https://linear.app/settings/account/security

Sources

• Linear GraphQL API
• Linear Developer Docs