Linear

Access the Linear API with managed OAuth authentication. Query and manage issues, projects, teams, cycles, labels, and comments using GraphQL.

Quick Start

bash

# Get current user
python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': '{ viewer { id name email } }'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/linear/graphql', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Base URL

code

https://gateway.maton.ai/linear/graphql

All requests use POST to the GraphQL endpoint. The gateway proxies requests to api.linear.app and automatically injects your OAuth token.

Authentication

All requests require the Maton API key in the Authorization header:

code

Authorization: Bearer $MATON_API_KEY

Environment Variable: Set your API key as MATON_API_KEY:

bash

export MATON_API_KEY="YOUR_API_KEY"

Getting Your API Key

•Sign in or create an account at maton.ai
•Go to maton.ai/settings
•Copy your API key

Connection Management

Manage your Linear OAuth connections at https://ctrl.maton.ai.

List Connections

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections?app=linear&status=ACTIVE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Create Connection

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'app': 'linear'}).encode()
req = urllib.request.Request('https://ctrl.maton.ai/connections', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Get Connection

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Response:

json

{
  "connection": {
    "connection_id": "fda4dabb-9d62-47e3-9503-a2f29d0995df",
    "status": "ACTIVE",
    "creation_time": "2026-02-04T23:03:22.676001Z",
    "last_updated_time": "2026-02-04T23:03:51.239577Z",
    "url": "https://connect.maton.ai/?session_token=...",
    "app": "linear",
    "metadata": {}
  }
}

Open the returned url in a browser to complete OAuth authorization.

Delete Connection

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections/{connection_id}', method='DELETE')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Specifying Connection

If you have multiple Linear connections, specify which one to use with the Maton-Connection header:

bash

python <<'EOF'
import urllib.request, os, json
data = json.dumps({'query': '{ viewer { id name } }'}).encode()
req = urllib.request.Request('https://gateway.maton.ai/linear/graphql', data=data, method='POST')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
req.add_header('Content-Type', 'application/json')
req.add_header('Maton-Connection', 'fda4dabb-9d62-47e3-9503-a2f29d0995df')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

If omitted, the gateway uses the default (oldest) active connection.

API Reference

Linear uses a GraphQL API. All operations are sent as POST requests with a JSON body containing the query field.

Viewer (Current User)

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ viewer { id name email } }"}

Response:

json

{
  "data": {
    "viewer": {
      "id": "4933b394-c42f-4623-904f-355fc40a4858",
      "name": "Byungkyu Park",
      "email": "byungkyujpark@gmail.com"
    }
  }
}

Organization

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ organization { id name urlKey } }"}

Teams

List Teams

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ teams { nodes { id name key } } }"}

Response:

json

{
  "data": {
    "teams": {
      "nodes": [
        {
          "id": "70c49a0d-6973-4563-a743-8504f1a5171b",
          "name": "Maton",
          "key": "MTN"
        }
      ]
    }
  }
}

Get Team

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ team(id: \"TEAM_ID\") { id name key issues { nodes { id identifier title } } } }"}

Issues

List Issues

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10) { nodes { id identifier title state { name } priority createdAt } pageInfo { hasNextPage endCursor } } }"}

Response:

json

{
  "data": {
    "issues": {
      "nodes": [
        {
          "id": "565e2ee9-2552-48d8-bbf9-a8b79ca1baec",
          "identifier": "MTN-527",
          "title": "Shopify app verification",
          "state": { "name": "In Progress" },
          "priority": 0,
          "createdAt": "2026-02-03T07:49:31.675Z"
        }
      ],
      "pageInfo": {
        "hasNextPage": true,
        "endCursor": "4c7b33c8-dabf-47ce-9d30-7f286f9463be"
      }
    }
  }
}

Get Issue by ID or Identifier

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ issue(id: \"MTN-527\") { id identifier title description state { name } priority assignee { name } team { key name } createdAt updatedAt } }"}

Filter Issues

Filter by state type:

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10, filter: { state: { type: { eq: \"started\" } } }) { nodes { id identifier title state { name type } } } }"}

Filter by title:

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ issues(first: 10, filter: { title: { containsIgnoreCase: \"bug\" } }) { nodes { id identifier title } } }"}

Search Issues

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ searchIssues(first: 10, term: \"shopify\") { nodes { id identifier title } } }"}

Create Issue

bash

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { issueCreate(input: { teamId: \"TEAM_ID\", title: \"New issue title\", description: \"Issue description\" }) { success issue { id identifier title state { name } } } }"}

Response:

json

{
  "data": {
    "issueCreate": {
      "success": true,
      "issue": {
        "id": "9dff693f-27d2-4656-9b2d-baa4a828dc83",
        "identifier": "MTN-528",
        "title": "New issue title",
        "state": { "name": "Backlog" }
      }
    }
  }
}

Update Issue

bash

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { issueUpdate(id: \"ISSUE_ID\", input: { title: \"Updated title\", priority: 2 }) { success issue { id identifier title priority } } }"}

Projects

List Projects

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ projects(first: 10) { nodes { id name state createdAt } } }"}

Cycles

List Cycles

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ cycles(first: 10) { nodes { id name number startsAt endsAt } } }"}

Labels

List Labels

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ issueLabels(first: 20) { nodes { id name color } } }"}

Response:

json

{
  "data": {
    "issueLabels": {
      "nodes": [
        { "id": "510edbdf-9f6e-43a0-80e5-c3b3bd82e26f", "name": "Blocked", "color": "#eb5757" },
        { "id": "cb7a7ef2-d2d3-4da2-ad4e-7cea0f8a72c7", "name": "Feature", "color": "#BB87FC" },
        { "id": "c795d04c-24d2-4d20-b3c1-9f9f1ce7b017", "name": "Improvement", "color": "#4EA7FC" },
        { "id": "40ff69f9-4a93-40a2-b143-f3b94aa594b7", "name": "Bug", "color": "#EB5757" }
      ]
    }
  }
}

Workflow States

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ workflowStates(first: 20) { nodes { id name type team { key } } } }"}

Response:

json

{
  "data": {
    "workflowStates": {
      "nodes": [
        { "id": "f21dfa65-7951-4742-a202-00ceb0ff6e9f", "name": "Backlog", "type": "backlog", "team": { "key": "MTN" } },
        { "id": "1ab9475f-eb91-4207-a5a3-1176e38b85be", "name": "Todo", "type": "unstarted", "team": { "key": "MTN" } },
        { "id": "ee724a62-0212-4b53-af67-08297a5ae132", "name": "In Progress", "type": "started", "team": { "key": "MTN" } },
        { "id": "427a9916-3849-4303-b982-f00f1d79c5ee", "name": "Done", "type": "completed", "team": { "key": "MTN" } },
        { "id": "363df32a-f22d-4083-8efb-b3615c019925", "name": "Canceled", "type": "canceled", "team": { "key": "MTN" } }
      ]
    }
  }
}

Users

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ users(first: 20) { nodes { id name email active } } }"}

Comments

List Comments

bash

POST /linear/graphql
Content-Type: application/json

{"query": "{ comments(first: 10) { nodes { id body createdAt issue { identifier } user { name } } } }"}

Create Comment

bash

POST /linear/graphql
Content-Type: application/json

{"query": "mutation { commentCreate(input: { issueId: \"ISSUE_ID\", body: \"Comment text here\" }) { success comment { id body } } }"}

Pagination

Linear uses Relay-style cursor-based pagination with first/after and last/before arguments.

bash

# First page
POST /linear/graphql
{"query": "{ issues(first: 10) { nodes { id identifier title } pageInfo { hasNextPage endCursor } } }"}

# Next page using endCursor
POST /linear/graphql
{"query": "{ issues(first: 10, after: \"CURSOR_VALUE\") { nodes { id identifier title } pageInfo { hasNextPage endCursor } } }"}

Response includes pageInfo:

json

{
  "data": {
    "issues": {
      "nodes": [...],
      "pageInfo": {
        "hasNextPage": true,
        "endCursor": "4c7b33c8-dabf-47ce-9d30-7f286f9463be"
      }
    }
  }
}

Code Examples

JavaScript

javascript

const response = await fetch('https://gateway.maton.ai/linear/graphql', {
  method: 'POST',
  headers: {
    'Authorization': `Bearer ${process.env.MATON_API_KEY}`,
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    query: `{ issues(first: 10) { nodes { id identifier title state { name } } } }`
  })
});
const data = await response.json();

Python

python

import os
import requests

response = requests.post(
    'https://gateway.maton.ai/linear/graphql',
    headers={
        'Authorization': f'Bearer {os.environ["MATON_API_KEY"]}',
        'Content-Type': 'application/json'
    },
    json={
        'query': '{ issues(first: 10) { nodes { id identifier title state { name } } } }'
    }
)
data = response.json()

Notes

•Linear uses GraphQL exclusively (no REST API)
•Issue identifiers like MTN-527 can be used in place of UUIDs for the id parameter
•Priority values: 0 = No priority, 1 = Urgent, 2 = High, 3 = Medium, 4 = Low
•Workflow state types: backlog, unstarted, started, completed, canceled
•The GraphQL schema is introspectable at https://api.linear.app/graphql
•Use searchIssues(term: "...") for full-text search across issues
•Some mutations (delete, create labels/projects) may require additional OAuth scopes

Error Handling

Status	Meaning
400	Missing Linear connection or GraphQL validation error
401	Invalid or missing Maton API key
403	Insufficient OAuth scope for the operation
429	Rate limited
4xx/5xx	Passthrough error from Linear API

GraphQL errors are returned in the errors array:

json

{
  "errors": [
    {
      "message": "Invalid scope: `write` required",
      "extensions": {
        "type": "forbidden",
        "code": "FORBIDDEN",
        "statusCode": 403
      }
    }
  ]
}

Troubleshooting: Invalid API Key

When you receive a "Invalid API key" error, ALWAYS follow these steps before concluding there is an issue:

•Check that the MATON_API_KEY environment variable is set:

bash

echo $MATON_API_KEY

•Verify the API key is valid by listing connections:

bash

python <<'EOF'
import urllib.request, os, json
req = urllib.request.Request('https://ctrl.maton.ai/connections')
req.add_header('Authorization', f'Bearer {os.environ["MATON_API_KEY"]}')
print(json.dumps(json.load(urllib.request.urlopen(req)), indent=2))
EOF

Linear

Quick Start

Base URL

Authentication

Getting Your API Key

Connection Management

List Connections

Create Connection

Get Connection

Delete Connection

Specifying Connection

API Reference

Viewer (Current User)

Organization

Teams

List Teams

Get Team

Issues

List Issues

Get Issue by ID or Identifier

Filter Issues

Search Issues

Create Issue

Update Issue

Projects

List Projects

Cycles

List Cycles

Labels

List Labels

Workflow States

Users

Comments

List Comments

Create Comment

Pagination

Code Examples

JavaScript

Python

Notes

Error Handling

Troubleshooting: Invalid API Key

Resources