linear-mcp
A Linear MCP server for Dedalus.
Prerequisites
- Python 3.11+
uv- A Linear workspace
Setup
cd linear-mcp
cp .env.example .env # then fill in your values
uv sync
Environment variables
Linear uses OAuth2 for authentication. The Dedalus platform (DAuth) handles the
OAuth flow. The MCP server declares the secret name it needs (e.g. LINEAR_ACCESS_TOKEN).
OAuth provider configuration (consumed by the Dedalus platform):
| Variable | Description |
|---|---|
OAUTH_ENABLED | true |
OAUTH_AUTHORIZE_URL | https://linear.app/oauth/authorize |
OAUTH_TOKEN_URL | https://api.linear.app/oauth/token |
OAUTH_CLIENT_ID | Your Linear OAuth app client ID |
OAUTH_CLIENT_SECRET | Your Linear OAuth app client secret |
OAUTH_SCOPES_AVAILABLE | read,write,issues:create,comments:create |
OAUTH_BASE_URL | https://api.linear.app |
Dedalus client configuration (for _client.py testing):
| Variable | Description |
|---|---|
DEDALUS_API_KEY | Your Dedalus API key (dsk_*) |
DEDALUS_API_URL | Defaults to https://api.dedaluslabs.ai |
DEDALUS_AS_URL | Defaults to https://as.dedaluslabs.ai |
Run the server
uv run src/main.py
Test locally
uv run src/_client.py
This opens an interactive agent loop. On first use, DAuth will prompt you to complete the Linear OAuth flow in your browser.
Lint and typecheck
uv run --group lint ruff format src/
uv run --group lint ruff check src/ --fix
uv run --group lint ty check src/
Available tools
| Tool | R/W | Description |
|---|---|---|
linear_get_issue | R | Get issue by ID or identifier (ENG-123) |
linear_list_issues | R | List issues with filters |
linear_create_issue | W | Create a new issue |
linear_update_issue | W | Update an existing issue |
linear_list_comments | R | List comments on an issue |
linear_create_comment | W | Add a comment to an issue |
linear_get_project | R | Get project by ID |
linear_list_projects | R | List projects |
linear_create_project | W | Create a new project |
linear_update_project | W | Update an existing project |
linear_list_cycles | R | List cycles for a team |
linear_get_cycle | R | Get a cycle by ID |
linear_active_cycle | R | Get the current active cycle for a team |
linear_list_teams | R | List all teams |
linear_get_team | R | Get a team by ID |
linear_list_team_states | R | List workflow states (statuses) for a team |
linear_whoami | R | Get authenticated user profile |
linear_list_users | R | List workspace members |
linear_list_labels | R | List labels |
linear_create_label | W | Create a new label |
linear_search_issues | R | Full-text search across issues |
21 tools (14 read, 7 write)
Architecture
Linear uses a single GraphQL endpoint (POST /graphql) for all operations. The
request layer in src/linear/request.py dispatches queries through Dedalus's HTTP
enclave, which injects OAuth credentials transparently.
src/
├── linear/
│ ├── config.py # Connection definition (OAuth)
│ ├── request.py # GraphQL dispatch + coercion helpers
│ └── types.py # Typed dataclass models
├── tools/
│ ├── issues.py # Issue CRUD
│ ├── comments.py # Comment operations
│ ├── projects.py # Project CRUD
│ ├── cycles.py # Cycle queries
│ ├── teams.py # Team + workflow states
│ ├── users.py # User queries
│ ├── labels.py # Label operations
│ └── search.py # Issue search
├── server.py # MCPServer setup
├── main.py # Entry point
└── _client.py # Interactive agent loop (DAuth)
Notes
- Linear's API is GraphQL-only. Every tool dispatches a GraphQL query or mutation.
- Workflow states (statuses) vary per team. Use
linear_list_team_statesto discover valid state IDs before creating or transitioning issues. - Issue identifiers (e.g.
ENG-123) can be used interchangeably with UUIDs in most tools. - Priority values: 0 = No priority, 1 = Urgent, 2 = High, 3 = Medium, 4 = Low.
- Archived resources are hidden by default. Some tools accept
include_archivedto surface them. - Authentication uses OAuth2 via DAuth. Personal API keys are not supported in this server.