GitLab MCP Server

A community MCP server for GitLab — works with any GitLab tier (Free, Premium, Ultimate), no GitLab Duo required. PAT-based auth. Streamable HTTP and stdio transports.

npx @ttpears/gitlab-mcp-server

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Choose your deployment

You're running	Go to
Claude Code or another IDE/AI tool, just for you	Solo IDE
LibreChat for a team with a service-account read token	LibreChat — service-account reads
LibreChat where every operation should use the calling user's token	LibreChat — strict per-user

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Solo IDE

Claude Code (recommended)

claude mcp add gitlab \
  --env GITLAB_URL=https://gitlab.com \
  --env GITLAB_TOKEN=glpat-your-pat \
  -- npx -y @ttpears/gitlab-mcp-server

--scope controls where the configuration lives:

• --scope local (default) — only this user, only this project
• --scope user — shared across all of your projects
• --scope project — written to .mcp.json in the project root, intended for team check-in

For team check-in, use a ${VAR} placeholder so the PAT itself stays out of git:

{
  "mcpServers": {
    "gitlab": {
      "command": "npx",
      "args": ["-y", "@ttpears/gitlab-mcp-server"],
      "env": {
        "GITLAB_URL": "https://gitlab.com",
        "GITLAB_TOKEN": "${GITLAB_TOKEN}"
      }
    }
  }
}

Each contributor exports GITLAB_TOKEN in their shell; Claude Code expands it on launch.

Cold start

If launching via npx adds noticeable latency, install once:

npm install -g @ttpears/gitlab-mcp-server

…and replace npx -y @ttpears/gitlab-mcp-server with gitlab-mcp-server in your config.

Claude Desktop

Option A — MCPB one-click install: download gitlab-mcp-community-${VERSION}.mcpb from the latest GitHub Release and drag it onto the Claude Desktop window. Fill in your GitLab URL and a Personal Access Token when prompted; the token is stored in your OS keychain. Use a read_api-scoped PAT for read-only access, or an api-scoped PAT to also allow writes (create_issue, create_merge_request, etc.).

Option B — manual config: add to claude_desktop_config.json:

{
  "mcpServers": {
    "gitlab": {
      "command": "npx",
      "args": ["-y", "@ttpears/gitlab-mcp-server"],
      "env": {
        "GITLAB_URL": "https://gitlab.com",
        "GITLAB_TOKEN": "glpat-your-pat"
      }
    }
  }
}

---

LibreChat — service-account reads

A read-only service token covers reads (so anyone in the workspace can ask questions). Each user supplies their own PAT for writes through LibreChat's customUserVars.

LibreChat's documented extension point is docker-compose.override.yml — the fragments below assume you're adding gitlab-mcp there alongside LibreChat's own api, mongodb, etc.

.env

GITLAB_URL=https://gitlab.example.com
GITLAB_READ_TOKEN=glpat-readonly-service-token   # read_api scope only

Use https://gitlab.com for SaaS GitLab; use your own host for self-hosted.

docker-compose.override.yml

services:
  gitlab-mcp:
    image: ghcr.io/ttpears/gitlab-mcp:1.14.0
    env_file:
      - .env
    networks:
      - librechat
    restart: unless-stopped

env_file reads GITLAB_URL and GITLAB_READ_TOKEN from .env. No port mapping needed — LibreChat's api container reaches gitlab-mcp over the shared librechat network. Add ports: ["8008:8008"] only if you need to hit it from the host (e.g. for curl http://localhost:8008/health).

Then:

docker compose -f docker-compose.yml -f docker-compose.override.yml up -d gitlab-mcp api

api is restarted alongside so it re-reads librechat.yaml.

librechat.yaml

mcpServers:
  gitlab:
    type: streamable-http
    url: http://gitlab-mcp:8008/
    startup: false                # don't connect until the user supplies their PAT
    initTimeout: 30000
    timeout: 120000
    headers:
      Authorization: "Bearer {{GITLAB_PAT}}"
      X-GitLab-Url: "{{GITLAB_URL_OVERRIDE}}"   # only honored when GITLAB_PIN_HOST=false (default pins to GITLAB_URL)
    customUserVars:
      GITLAB_PAT:
        title: "GitLab Personal Access Token"
        description: "Your GitLab PAT with api scope. Used for issues, MRs, and comments you create or edit."
      GITLAB_URL_OVERRIDE:
        title: "GitLab URL (optional)"
        description: "Leave blank to use the workspace default. Override only if your account is on a different GitLab instance."

initTimeout / timeout are forgiving defaults for slower internal networks and large schemas — drop them if SaaS GitLab feels snappy.

Server-side env vars use ${VAR}. Per-user vars use {{VAR}}. They are not interchangeable.

---

LibreChat — strict per-user

Every call must carry a user PAT. No service-account fallback. Reads as well as writes are gated on the user's token.

Add MCP Server (UI path — recommended)

1. Host gitlab-mcp somewhere LibreChat can reach. For a quick standalone host:

   docker run -d --restart unless-stopped \
     -p 8008:8008 \
     -e GITLAB_URL=https://gitlab.example.com \
     --name gitlab-mcp \
     ghcr.io/ttpears/gitlab-mcp:1.14.0

   Or, when running alongside LibreChat in the same compose project, drop it into docker-compose.override.yml (no token env vars):

   services:
     gitlab-mcp:
       image: ghcr.io/ttpears/gitlab-mcp:1.14.0
       environment:
         GITLAB_URL: https://gitlab.example.com
       networks:
         - librechat
       restart: unless-stopped

2. In LibreChat → MCP Servers → Add MCP Server:

   • URL: https://your-host/ (or http://gitlab-mcp:8008/ if same network)
   • Authentication: API Key → check User provides key → header format Bearer
   • Save

3. Each user fills in their PAT through the MCP Tool Select Dialog when configuring an agent.

librechat.yaml equivalent

mcpServers:
  gitlab:
    type: streamable-http
    url: http://gitlab-mcp:8008/
    startup: false
    initTimeout: 30000
    timeout: 120000
    headers:
      Authorization: "Bearer {{GITLAB_PAT}}"
    customUserVars:
      GITLAB_PAT:
        title: "GitLab Personal Access Token"
        description: "Your GitLab PAT with api scope."

The container needs no env-configured token at all in this mode — every request is rejected unless Authorization: Bearer … is present.

---

Hosting for a remote LibreChat

The server speaks plain HTTP. For LibreChat-as-a-service or any cross-network deployment, terminate TLS at a reverse proxy. Common patterns:

• Caddy — auto-TLS via Let's Encrypt:

  mcp.example.com {
    reverse_proxy gitlab-mcp:8008
  }

• Traefik — Docker labels on the gitlab-mcp service.

• Cloudflare Tunnel — no public IP needed; expose gitlab-mcp:8008 through the tunnel.

The Authorization and Mcp-Session-Id headers must pass through unchanged. Most defaults handle this fine.

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OAuth for remote users

For a publicly hosted instance where each user signs in with their own GitLab identity — and modern MCP clients (Claude.ai, Claude Code) connect with no manual token setup — enable brokered OAuth 2.1. The server then acts as its own OAuth Authorization Server in front of GitLab:

• advertises Protected Resource Metadata (RFC 9728) and Authorization Server Metadata (RFC 8414) at the standard .well-known endpoints,
• supports Dynamic Client Registration (RFC 7591), so clients self-register,
• runs authorization-code + PKCE against both the MCP client and GitLab (dual-PKCE) behind one fixed GitLab callback,
• gates the MCP endpoints with bearer validation — unauthenticated requests get 401 + WWW-Authenticate pointing at the resource metadata (the discovery trigger),
• mints its own opaque tokens and keeps each user's GitLab token server-side (no token passthrough).

Setup

1. Register one GitLab application (instance/group/user → Applications):

   • Redirect URI: https://<your-host>/gitlab/callback
   • Scopes: api (read + write) or read_api
   • Confidential: yes (recommended) → you get a client secret; or mark it public for PKCE-only.

2. Run the server (HTTP mode) with no GITLAB_TOKEN — identity comes from each user's OAuth login:

   MCP_TRANSPORT=http GITLAB_MCP_PORT=8008 \
   GITLAB_URL=https://gitlab.example.com \
   GITLAB_MCP_OAUTH=true \
   MCP_SERVER_URL=https://gitlab-mcp.example.com \
   GITLAB_OAUTH_CLIENT_ID=<application id> \
   GITLAB_OAUTH_CLIENT_SECRET=<application secret> \
   GITLAB_OAUTH_SCOPES=api \
   npx -y @ttpears/gitlab-mcp-server

3. Point an MCP client at https://gitlab-mcp.example.com/ — it discovers the metadata, registers, and walks the user through GitLab sign-in automatically.

MCP_SERVER_URL must be HTTPS (terminate TLS at your reverse proxy) and must match the host the GitLab redirect URI is registered under. Token/registration state is in-memory, so run a single instance (or add a shared store) per issuer.

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How this differs from GitLab's official MCP server

GitLab ships an official MCP server (Beta) that requires Premium/Ultimate and GitLab Duo.

	This server	GitLab official
GitLab tier	Free, Premium, Ultimate	Premium / Ultimate only
GitLab Duo required	No	Yes
Auth	PAT, or brokered OAuth 2.1 + Dynamic Client Registration	OAuth 2.0 Dynamic Client Registration
Transport	stdio + streamable HTTP	stdio + HTTP
Multi-user	Per-call PAT, OAuth per-user, or service-account fallback	OAuth per-user
GraphQL schema discovery	Yes — introspect & run custom queries	No
Repository browsing & file reading	Yes	No
Update issues / MRs / notes	Yes	No (create only)
Delete issues / notes	Yes	No
CI/CD pipeline management	Yes	Yes
MR diffs & commits	Yes	Yes
Time tracking & timelogs	Yes	No
MR reviewer & approval status	Yes	No
Iteration / milestone tracking	Yes	No
Project statistics dashboard	Yes	No
Group member listing	Yes	No
Semantic code search	No	Yes (requires additional setup)

Choose this server for Free/CE, GraphQL flexibility, LibreChat multi-user, or brokered OAuth without GitLab Duo. Choose the official server for Premium+Duo with semantic code search.

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Tools

Search & Discovery

Tool	Description
search_gitlab	Global search across projects, issues, and merge requests
search_projects	Find repositories by name or description
search_issues	Search issues globally or within a project (filter by assignee, author, labels, state)
search_merge_requests	Find merge requests by username or within a project
search_users	Find team members and contributors
search_groups	Discover groups and organizations
search_labels	Search labels in a project or group
list_group_members	List group members with access levels
browse_repository	Explore directory structure and files
get_file_content	Read file contents for code analysis

Read Operations

Tool	Description
get_project	Detailed project information
get_issues	List project issues with pagination
get_merge_requests	List project merge requests with pagination
get_merge_request_pipelines	Get CI/CD pipelines for a merge request
get_pipeline_jobs	Get jobs for a specific pipeline
get_merge_request_diffs	Get diff statistics for a merge request
get_merge_request_commits	Get commits for a merge request
get_notes	Get notes/comments on an issue or merge request
list_milestones	List milestones with progress statistics
list_iterations	List iterations/sprints (Premium/Ultimate)
get_time_tracking	Get time estimate, spent, and timelogs
get_merge_request_reviewers	Get MR approval and reviewer status
get_project_statistics	Aggregate project stats dashboard
get_user_issues	Get all issues assigned to a user
get_user_merge_requests	Get MRs authored by or assigned to a user
get_work_item	Fetch a work item (issue, task, epic, incident, OKR) by ID with full widget data
list_work_items	List work items in a group or project, filtered by type and state
list_broadcast_messages	List instance-wide broadcast messages
get_broadcast_message	Get a specific broadcast message by ID
list_my_todos	Authenticated user's to-do inbox — notifications about issues, MRs, mentions, reviews requested
list_my_events	Authenticated user's activity feed — pushes, MRs, comments, approvals
list_user_events	Another user's public activity feed by username or ID
list_project_events	Activity events for a specific project
resolve_path	Resolve a path to a project or group
get_available_queries	Discover available GraphQL operations
execute_custom_query	Run custom GraphQL queries

Write Operations (require user authentication)

Tool	Description
create_issue	Create new issues
create_merge_request	Create new merge requests
create_note	Add a comment/note to an issue or merge request
update_issue	Update title, description, assignees, labels, due date
update_merge_request	Update title, description, assignees, reviewers, labels
update_note	Edit the body of an existing comment
delete_issue	Delete an issue (issue author or maintainer required)
delete_note	Delete a comment (note author or maintainer required)
manage_pipeline	Retry or cancel a CI/CD pipeline
create_broadcast_message	Create a broadcast message (instance admin)
update_broadcast_message	Update a broadcast message (instance admin)
delete_broadcast_message	Delete a broadcast message (instance admin)
mark_todo_done	Mark a single to-do item as done
mark_all_todos_done	Mark all pending to-do items as done for the authenticated user
restore_todo	Restore a previously-done to-do item back to pending

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Configuration

Environment variables

Variable	Description	Default
GITLAB_URL	GitLab instance URL	https://gitlab.com
GITLAB_TOKEN	Full-access fallback token (reads + writes)	—
GITLAB_READ_TOKEN	Read-only fallback token (writes always rejected)	—
GITLAB_PIN_HOST	Force every request to GITLAB_URL, ignoring per-call/header gitlabUrl (SSRF guard). Set false to serve multiple instances	true
GITLAB_ALLOW_SHARED_ESCAPE_HATCH	Allow execute_custom_query / execute_rest_read / execute_rest_write to run on the shared token (otherwise they require per-call credentials)	false
GITLAB_MAX_PAGE_SIZE	Maximum items per page (1–100)	50
GITLAB_TIMEOUT	Request timeout in milliseconds	30000
GITLAB_MAX_CONCURRENCY	Max concurrent in-flight requests to GitLab (excess queue, never rejected). 0 = unlimited	16
GITLAB_ANALYTICS_MAX_PROJECTS	Cap on projects scanned per group-analytics fan-out (logs when bounded)	500
GITLAB_MCP_PORT	HTTP server port	8008
MCP_TRANSPORT	Transport mode (http for LibreChat)	stdio
TRUST_PROXY	Express trust proxy when behind a reverse proxy (hop count like 1, boolean, or IP/subnet list). Needed for correct per-IP OAuth rate limiting behind traefik/nginx	unset
GITLAB_MCP_OAUTH	Enable brokered OAuth 2.1 (HTTP mode) — see OAuth for remote users	false
MCP_SERVER_URL	Public HTTPS URL of this server (OAuth issuer/resource id) — required when OAuth is on	—
GITLAB_OAUTH_CLIENT_ID	GitLab application id — required when OAuth is on	—
GITLAB_OAUTH_CLIENT_SECRET	GitLab application secret (omit for a public/PKCE-only app)	—
GITLAB_OAUTH_SCOPES	Space-separated GitLab scopes to request	api
GITLAB_OAUTH_CALLBACK_PATH	Path of the fixed GitLab redirect URI	/gitlab/callback
GITLAB_OAUTH_ALLOWED_GROUPS	Restrict the connector to members of these GitLab groups (comma/space separated full-paths; subgroups included). Empty = any authenticated user	unset
REDIS_URL	Back OAuth broker state with Redis (survives redeploys, enables >1 replica). Unset = in-memory	unset
REDIS_KEY_PREFIX	Base namespace for Redis keys (issuer host is appended)	gitlab-mcp

GITLAB_TOKEN and GITLAB_READ_TOKEN are mutually exclusive; setting both is a startup error.

Removed in 1.14.0

• GITLAB_AUTH_MODE — the three-way enum is gone. Pick your deployment shape by which env var you set; see Choose your deployment.
• GITLAB_SHARED_ACCESS_TOKEN — rename to GITLAB_TOKEN (full access) or GITLAB_READ_TOKEN (read-only).

Old env vars trigger a deprecation warning at startup and are otherwise ignored.

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Troubleshooting

"This operation requires authentication" / "Write operation requires a user token":

• For LibreChat: check the user filled in their PAT in the MCP Tool Select Dialog (or in their customUserVars).
• For Claude Code: confirm GITLAB_TOKEN is set in the MCP server's env block.
• If you set GITLAB_READ_TOKEN, write operations against it are rejected by design — supply per-call user creds for writes.

Connection issues with LibreChat:

• type: streamable-http (not sse).
• URL is the Docker service name (http://gitlab-mcp:8008/), not localhost, when LibreChat and gitlab-mcp share a Docker network.
• docker logs gitlab-mcp shows session init and request lines.

Schema introspection failed:

• GitLab 12.0+ with GraphQL API enabled.
• Verify GITLAB_URL is reachable from the container.

Debug logging:

NODE_ENV=development GITLAB_TOKEN=glpat-... npm start

Health check (HTTP mode):

curl http://localhost:8008/health

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Changelog

See CHANGELOG.md. Releases before 1.14.0 are in GitHub releases.

License

MIT