GitLab MCP Server

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@zereight/mcp-gitlab

A comprehensive GitLab MCP server for AI clients. Manage projects, merge requests, issues, pipelines, wiki, releases, tags, milestones, and more through stdio, SSE, and Streamable HTTP.

Supports PAT, OAuth, read-only mode, dynamic API URLs, and remote authorization for VS Code, Claude, Cursor, Copilot, and other MCP clients.

Why use this GitLab MCP?

• Broad GitLab coverage — projects, repository browsing, merge requests, issues, pipelines, wiki, releases, tags, labels, milestones, and more
• Flexible auth — Personal Access Token, local OAuth2 browser flow, MCP OAuth proxy, and per-request remote authorization
• Multiple transports — stdio for local clients, SSE for legacy clients, and Streamable HTTP for modern remote deployments
• Client-friendly setup — examples for Claude Code, Codex, Antigravity, OpenCode, Copilot, Cline, Roo Code, Cursor, Kilo Code, and Amp Code
• Self-hosted ready — works with custom GitLab instances, proxy settings, and dynamic API URL routing

Quick start: choose either Personal Access Token or OAuth2 setup below, install @zereight/mcp-gitlab, and use zereight-mcp-gitlab in your MCP client configuration.

Client Setup Guides

• Claude Code Setup Guide
• VS Code Setup Guide
• GitHub Copilot Setup Guide
• Codex Setup Guide
• Cursor Setup Guide
• JSON-Based MCP Clients Setup Guide - for Factory AI Droid, OpenClaw, and OpenCode style clients
• OAuth2 Authentication Setup Guide
• Environment Variables Reference
• Stateless Mode — Multi-Pod HPA
• Custom Agents and Multiple PAT Setup

Usage

Setup Overview

Authentication Methods

The server supports four authentication methods:

For local/desktop use (most common):

1. Personal Access Token (GITLAB_PERSONAL_ACCESS_TOKEN) — simplest setup
2. OAuth2 — Local Browser (GITLAB_USE_OAUTH) — recommended for better security

For server/remote deployments:

3. OAuth2 — MCP Proxy (GITLAB_MCP_OAUTH) — for remote MCP clients such as Claude.ai
4. Remote Authorization (REMOTE_AUTHORIZATION) — multi-user deployments where each caller provides their own token

Quick setup paths

• Claude Code: see Claude Code Setup Guide
• VS Code: see VS Code Setup Guide
• GitHub Copilot: see GitHub Copilot Setup Guide
• Codex: see Codex Setup Guide
• Cursor: see Cursor Setup Guide
• Factory AI Droid / OpenClaw / OpenCode style clients: see JSON-Based MCP Clients Setup Guide
• OAuth browser flow details: see OAuth2 Authentication Setup Guide

For the simplest local setup, start with a Personal Access Token. For browser-based local auth, use OAuth2. For remote or multi-user deployments, continue to the MCP OAuth and Remote Authorization sections later in this README.

Install the server once:

brew tap zereight/gitlab-mcp https://github.com/zereight/gitlab-mcp
brew install zereight/gitlab-mcp/zereight-mcp-gitlab

Or with npm:

npm install -g @zereight/mcp-gitlab

The examples use zereight-mcp-gitlab, a less collision-prone alias for the legacy mcp-gitlab binary. If your MCP client cannot find it, use the absolute path from which zereight-mcp-gitlab.

No global install? Pin npx to the previous stable release (the version these docs recommend), for example npx -y @zereight/mcp-gitlab@2.1.38. If you always want the newest release, use npx -y @zereight/mcp-gitlab@latest instead. The server prints a notice to stderr on startup when a newer version is available (disable with GITLAB_DISABLE_VERSION_CHECK=true).

Using CLI Arguments (for clients with env var issues)

Some MCP clients (like GitHub Copilot CLI) have issues with environment variables. Use CLI arguments instead:

{
  "mcpServers": {
    "gitlab": {
      "command": "zereight-mcp-gitlab",
      "args": ["--token=YOUR_GITLAB_TOKEN", "--api-url=https://gitlab.com/api/v4"],
      "tools": ["*"]
    }
  }
}

Available CLI arguments:

• --token - GitLab Personal Access Token (replaces GITLAB_PERSONAL_ACCESS_TOKEN)
• --api-url - GitLab API URL (replaces GITLAB_API_URL)
• --read-only=true - Enable read-only mode (replaces GITLAB_READ_ONLY_MODE, deprecated — prefer --permission-mode=readonly)
• --permission-mode - Permission level: readonly, modify (no delete tools), or full (replaces GITLAB_PERMISSION_MODE, default full)
• --use-wiki=true - Enable wiki API (replaces USE_GITLAB_WIKI, legacy — prefer GITLAB_TOOLSETS=wiki)
• --use-milestone=true - Enable milestone API (replaces USE_MILESTONE, legacy — prefer GITLAB_TOOLSETS=milestones)
• --use-pipeline=true - Enable pipeline API (replaces USE_PIPELINE, legacy — prefer GITLAB_TOOLSETS=pipelines)
• --disable-version-check=true - Disable the startup new-version notice (replaces GITLAB_DISABLE_VERSION_CHECK)

CLI arguments take precedence over environment variables.

Fine-grained tool filtering: use GITLAB_PERMISSION_MODE=modify to allow create/update while blocking every delete tool (including delete mutations through execute_graphql), or GITLAB_PERMISSION_MODE=readonly for read-only access. You can also enable toolset groups with GITLAB_TOOLSETS=<group,…>, allow-list individual tools with GITLAB_TOOLS=<tool,…> (e.g. read-only groups plus a few specific write tools), and deny-list by pattern with GITLAB_DENIED_TOOLS_REGEX. The legacy USE_GITLAB_WIKI / USE_MILESTONE / USE_PIPELINE flags are kept for backward compatibility only. See Tools Reference and Environment Variables.

• sse

docker run -i --rm \
  -e HOST=0.0.0.0 \
  -e GITLAB_PERSONAL_ACCESS_TOKEN=your_gitlab_token \
  -e GITLAB_API_URL="https://gitlab.com/api/v4" \
  -e GITLAB_PERMISSION_MODE=readonly \
  -e GITLAB_TOOLSETS=wiki,milestones,pipelines \
  -e SSE=true \
  -e SSE_AUTH_TOKEN=your_mcp_sse_token \
  -p 3333:3002 \
  zereight050/gitlab-mcp

{
  "mcpServers": {
    "gitlab": {
      "type": "sse",
      "url": "http://localhost:3333/sse",
      "headers": {
        "Authorization": "Bearer your_mcp_sse_token"
      }
    }
  }
}

• streamable-http

docker run -i --rm \
  -e HOST=0.0.0.0 \
  -e REMOTE_AUTHORIZATION=true \
  -e GITLAB_API_URL="https://gitlab.com/api/v4" \
  -e GITLAB_PERMISSION_MODE=readonly \
  -e GITLAB_TOOLSETS=wiki,milestones,pipelines \
  -e STREAMABLE_HTTP=true \
  -p 3333:3002 \
  zereight050/gitlab-mcp

{
  "mcpServers": {
    "gitlab": {
      "type": "streamable-http",
      "url": "http://localhost:3333/mcp",
      "headers": {
        "Authorization": "Bearer glpat-..."
      }
    }
  }
}

Using MCP OAuth Proxy (GITLAB_MCP_OAUTH)

For server/remote deployments only. This mode requires the MCP server to be deployed with a publicly accessible HTTPS URL. For local/desktop use, see GITLAB_USE_OAUTH above.

For remote MCP clients that support the MCP OAuth specification (e.g. Claude.ai). The server acts as a full OAuth 2.0 authorization server — unauthenticated requests receive a 401 + WWW-Authenticate response, which triggers the OAuth browser flow automatically on the client side.

Remote MCP clients such as OpenCode, MCPJam, and Claude.ai can send their own callback URL during authorization. If you cannot register every client callback URL in GitLab, enable GITLAB_OAUTH_CALLBACK_PROXY=true. With callback proxy mode, GitLab only needs one registered redirect URI: {MCP_SERVER_URL}/callback.

GITLAB_OAUTH_REDIRECT_URI is for local OAuth (GITLAB_USE_OAUTH) only. It does not override remote MCP OAuth client callback URLs and should not be used to fix remote Unregistered redirect_uri errors.

This variable exists because the local OAuth flow starts a browser on the same machine as the MCP server and listens for the callback on a local HTTP server, for example http://127.0.0.1:8888/callback.

Remote MCP OAuth is different. In GITLAB_MCP_OAUTH=true mode, the MCP client provides its own callback URL during /authorize. GITLAB_OAUTH_REDIRECT_URI does not replace that client-provided URL.

Mode	Enable with	Callback variable	GitLab redirect URI
Local OAuth	GITLAB_USE_OAUTH=true	GITLAB_OAUTH_REDIRECT_URI	http://127.0.0.1:8888/callback or your local callback
Remote MCP OAuth	GITLAB_MCP_OAUTH=true	GITLAB_OAUTH_CALLBACK_PROXY=true	{MCP_SERVER_URL}/callback

Use GITLAB_OAUTH_REDIRECT_URI only when the MCP server itself owns the local browser callback. Use GITLAB_OAUTH_CALLBACK_PROXY=true when a remote MCP client owns the callback URL.

How it works: You deploy this MCP server somewhere with a public HTTPS URL. MCP clients connect to {MCP_SERVER_URL}/mcp. The server handles the OAuth 2.0 flow, exchanging credentials with GitLab on behalf of the client.

Prerequisites:

1. A publicly accessible HTTPS server URL (MCP_SERVER_URL) — use ngrok for local testing
2. A pre-registered GitLab OAuth application with api (or read_api) scopes — Go to Admin area → Applications, set Redirect URI to {MCP_SERVER_URL}/callback

Environment Variable	Required	Description
GITLAB_MCP_OAUTH	✅	Set to true to enable
GITLAB_API_URL	✅	GitLab API base URL
GITLAB_OAUTH_APP_ID	✅	GitLab OAuth Application ID
MCP_SERVER_URL	✅	Public HTTPS URL of this MCP server
STREAMABLE_HTTP	✅	Must be true
GITLAB_OAUTH_CALLBACK_PROXY	optional	Set to true to use the MCP server's fixed /callback URL
GITLAB_OAUTH_SCOPES	optional	Comma-separated scopes (default: api,read_api,read_user)
GITLAB_OAUTH_ALLOWED_GROUPS	optional	Comma-separated group full paths — only members (and subgroup members) may obtain a token (replaces deprecated GITLAB_ALLOWED_GROUPS)

When STREAMABLE_HTTP=true, server-side GitLab credentials (GITLAB_PERSONAL_ACCESS_TOKEN, GITLAB_JOB_TOKEN, GITLAB_AUTH_COOKIE_PATH, or GITLAB_USE_OAUTH) require REMOTE_AUTHORIZATION=true, GITLAB_MCP_OAUTH=true, or STREAMABLE_HTTP_AUTH_TOKEN.

Troubleshooting Unregistered redirect_uri

Check the redirect_uri in the browser URL. If it points to a client callback such as http://127.0.0.1:xxxxx/.../callback, enable:

GITLAB_OAUTH_CALLBACK_PROXY=true

Do not fix remote MCP OAuth by changing GITLAB_OAUTH_REDIRECT_URI. That variable is for local OAuth (GITLAB_USE_OAUTH) only.

docker run -i --rm \
  -e HOST=0.0.0.0 \
  -e GITLAB_MCP_OAUTH=true \
  -e GITLAB_OAUTH_CALLBACK_PROXY=true \
  -e STREAMABLE_HTTP=true \
  -e MCP_SERVER_URL=https://your-server.example.com \
  -e GITLAB_API_URL="https://gitlab.com/api/v4" \
  -e GITLAB_OAUTH_APP_ID=your_app_id \
  -p 3000:3002 \
  zereight050/gitlab-mcp

MCP client configuration:

{
  "mcpServers": {
    "gitlab": {
      "type": "http",
      "url": "https://your-server.example.com/mcp"
    }
  }
}

Using Remote Authorization (REMOTE_AUTHORIZATION)

For server/remote deployments only. Each HTTP caller provides their own GitLab token directly in request headers — no OAuth flow involved.

For multi-user or multi-tenant deployments where each caller provides their own GitLab token in the HTTP request header. No OAuth flow — the MCP server forwards the token to GitLab on behalf of the caller.

Header priority: Private-Token > JOB-TOKEN > Authorization: Bearer

Environment Variable	Required	Description
REMOTE_AUTHORIZATION	✅	Set to true to enable
STREAMABLE_HTTP	✅	Must be true
ENABLE_DYNAMIC_API_URL	optional	Allow per-request GitLab URL via X-GitLab-API-URL header
GITLAB_ALLOWED_HOSTS	optional	Comma-separated allowed X-GitLab-API-URL hosts; GITLAB_API_URL hosts are always allowed
GITLAB_ALLOW_UNAUTHENTICATED_TOOL_DISCOVERY	optional	Allow unauthenticated initialize, notifications/initialized, and tools/list only (tool calls still require auth)
MCP_SERVER_URL / MCP_ALLOWED_HOSTS / MCP_ALLOWED_ORIGINS	optional	Allowed public /mcp host/origin values for DNS rebinding protection
MCP_TRUST_PROXY	optional	Trust Forwarded / X-Forwarded-* headers behind a reverse proxy (download URLs, Express req.ip, /mcp IP rate limits, OAuth rate limits)

GITLAB_ALLOW_UNAUTHENTICATED_TOOL_DISCOVERY=true is intended for MCP gateways or admin UIs that need to inspect tool metadata before a user provides a GitLab token. Leave it disabled unless the tool list is safe to expose in your deployment.

When MCP_SERVER_URL is not set, remote download URLs fall back to the local server address. Set MCP_TRUST_PROXY=true only if the server is reachable through a trusted reverse proxy and direct client access to the MCP server is blocked. This enables Express trust proxy for Streamable HTTP and SSE, derives public download URLs from Forwarded / X-Forwarded-Proto / X-Forwarded-Host / X-Forwarded-Prefix, and keeps OAuth endpoint rate limiting working when proxies send X-Forwarded-For with a client port (for example 1.2.3.4:5678). Existing OAuth+proxy deployments must set this explicitly after the flag was introduced.

Example request headers:

Private-Token: glpat-xxxxxxxxxxxxxxxxxxxx

or using a Bearer token:

Authorization: Bearer glpat-xxxxxxxxxxxxxxxxxxxx

⚠️ REMOTE_AUTHORIZATION is not compatible with SSE transport. STREAMABLE_HTTP=true is required.

Environment Variables

Use the dedicated reference for the full environment variable list:

• Environment Variables Reference

Most users only need one of these starting sets:

• Local PAT: GITLAB_PERSONAL_ACCESS_TOKEN, GITLAB_API_URL
• Local OAuth: GITLAB_USE_OAUTH=true, GITLAB_OAUTH_CLIENT_ID, GITLAB_OAUTH_REDIRECT_URI, GITLAB_API_URL
• Remote multi-user HTTP: STREAMABLE_HTTP=true, REMOTE_AUTHORIZATION=true (or GITLAB_MCP_OAUTH=true), MCP_TRUST_PROXY=true (behind a reverse proxy), MAX_REQUESTS_PER_MINUTE=300, MCP_SERVER_URL or MCP_ALLOWED_HOSTS, HOST, PORT
• Multiple side-by-side deployments: set a distinct MCP_SERVER_NAME per instance (e.g. gitlab-selfhosted-readonly) so clients, logs, and telemetry can tell them apart
• Multi-pod HPA (stateless): above + OAUTH_STATELESS_MODE=true, OAUTH_STATELESS_SECRET (same across all pods). See Stateless Mode.

Commonly referenced variables:

• GITLAB_API_URL
• GITLAB_PERSONAL_ACCESS_TOKEN
• GITLAB_USE_OAUTH
• REMOTE_AUTHORIZATION
• MCP_TRUST_PROXY
• MAX_REQUESTS_PER_MINUTE
• MAX_SESSIONS
• MCP_ALLOWED_HOSTS
• MCP_ALLOWED_ORIGINS
• GITLAB_MCP_OAUTH
• GITLAB_OAUTH_CALLBACK_PROXY
• OAUTH_STATELESS_MODE
• OAUTH_STATELESS_SECRET

The reference document also covers:

• auth and OAuth variables
• MCP OAuth proxy variables
• project and tool filtering variables
• dynamic tool discovery via discover_tools (on-demand toolset activation)
• transport and session variables
• proxy and TLS variables

For callback proxy mode details, see GitLab MCP OAuth Callback Proxy.

Remote Authorization Setup (Multi-User Support)

When using REMOTE_AUTHORIZATION=true, the MCP server can support multiple users, each with their own GitLab token passed via HTTP headers. This is useful for:

• Shared MCP server instances where each user needs their own GitLab access
• IDE integrations that can inject user-specific tokens into MCP requests

Setup Example:

# Start server with remote authorization
docker run -d \
  -e HOST=0.0.0.0 \
  -e STREAMABLE_HTTP=true \
  -e REMOTE_AUTHORIZATION=true \
  -e GITLAB_API_URL="https://gitlab.com/api/v4" \
  -e GITLAB_PERMISSION_MODE=readonly \
  -e SESSION_TIMEOUT_SECONDS=3600 \
  -p 3333:3002 \
  zereight050/gitlab-mcp

Client Configuration:

Your IDE or MCP client must send one of these headers with each request:

Authorization: Bearer glpat-xxxxxxxxxxxxxxxxxxxx

or

Private-Token: glpat-xxxxxxxxxxxxxxxxxxxx

The token is stored per session (identified by mcp-session-id header) and reused for subsequent requests in the same session.

Remote Authorization Client Configuration Example with Cursor

{
  "mcpServers": {
    "GitLab": {
      "url": "http(s)://<your_mcp_gitlab_server>/mcp",
      "headers": {
        "Authorization": "Bearer glpat-..."
      }
    }
  }
}

Important Notes:

• Remote authorization only works with Streamable HTTP transport
• Each session is isolated - tokens from one session cannot access another session's data Tokens are automatically cleaned up when sessions close
• Session timeout: Auth tokens expire after SESSION_TIMEOUT_SECONDS (default 1 hour) of inactivity. After timeout, the client must send auth headers again. The transport session remains active.
• Each request resets the timeout timer for that session
• Rate limiting: /mcp requests are limited to MAX_REQUESTS_PER_MINUTE per client IP, and per MCP session when using OAuth or remote authorization (default 60). See environment-variables.md.
• Capacity limit: Server accepts up to MAX_SESSIONS concurrent sessions (default 1000)

MCP OAuth Setup (Claude.ai Native OAuth)

When using GITLAB_MCP_OAUTH=true, the server acts as an OAuth proxy to your GitLab instance. Claude.ai (and any MCP-spec-compliant client) handles the entire browser authentication flow automatically — no manual Personal Access Token management needed.

Prerequisites:

A pre-registered GitLab OAuth application is required. GitLab restricts dynamically registered (unverified) applications to the mcp scope, which is insufficient for API calls (need api or read_api).

1. Go to your GitLab instance → Admin Area > Applications (instance-wide) or User Settings > Applications (personal)
2. Create a new application with:
   • Confidential: unchecked
   • Scopes: api, read_api, read_user (or whichever scopes you intend to request via GITLAB_OAUTH_SCOPES)
3. Save and copy the Application ID — this is your GITLAB_OAUTH_APP_ID

How it works:

1. User adds your MCP server URL in Claude.ai
2. Claude.ai discovers OAuth endpoints via /.well-known/oauth-authorization-server
3. Claude.ai registers itself via Dynamic Client Registration (POST /register) — handled locally by the MCP server (each client gets a virtual client ID)
4. Claude.ai redirects the user's browser to GitLab's login page using the pre-registered OAuth application
5. User authenticates; GitLab redirects back to https://claude.ai/api/mcp/auth_callback
6. Claude.ai sends Authorization: Bearer <token> on every MCP request
7. Server validates the token with GitLab and stores it per session

Server setup:

docker run -d \
  -e STREAMABLE_HTTP=true \
  -e GITLAB_MCP_OAUTH=true \
  -e GITLAB_OAUTH_APP_ID="your-gitlab-oauth-app-client-id" \
  -e GITLAB_API_URL="https://gitlab.example.com/api/v4" \
  -e MCP_SERVER_URL="https://your-mcp-server.example.com" \
  -p 3002:3002 \
  zereight050/gitlab-mcp

For local development (HTTP allowed):

MCP_DANGEROUSLY_ALLOW_INSECURE_ISSUER_URL=true \
STREAMABLE_HTTP=true \
GITLAB_MCP_OAUTH=true \
GITLAB_OAUTH_APP_ID=your-gitlab-oauth-app-client-id \
MCP_SERVER_URL=http://localhost:3002 \
GITLAB_API_URL=https://gitlab.com/api/v4 \
node build/index.js

Claude.ai configuration:

{
  "mcpServers": {
    "GitLab": {
      "url": "https://your-mcp-server.example.com/mcp"
    }
  }
}

No headers field is needed — Claude.ai obtains the token via OAuth automatically.

Environment variables:

Variable	Required	Description
GITLAB_MCP_OAUTH	Yes	Set to true to enable
GITLAB_OAUTH_APP_ID	Yes	Client ID of the pre-registered GitLab OAuth application
MCP_SERVER_URL	Yes	Public HTTPS URL of your MCP server; also allowed for /mcp Host/Origin checks
GITLAB_API_URL	Yes	Your GitLab instance API URL (e.g. https://gitlab.com/api/v4)
STREAMABLE_HTTP	Yes	Must be true (SSE is not supported)
GITLAB_OAUTH_SCOPES	No	Comma-separated GitLab scopes to request (e.g. api,read_user). Defaults to api (or read_api when GITLAB_READ_ONLY_MODE=true). The pre-registered application must be configured with at least these scopes.
MCP_DANGEROUSLY_ALLOW_INSECURE_ISSUER_URL	No	Set true for local HTTP dev only

Important Notes:

• MCP OAuth only works with Streamable HTTP transport (SSE=true is incompatible)
• Each user session stores its own OAuth token — sessions are fully isolated
• Session timeout, rate limiting, and capacity limits apply identically to the REMOTE_AUTHORIZATION mode (SESSION_TIMEOUT_SECONDS, MAX_REQUESTS_PER_MINUTE, MAX_SESSIONS)
• Header auth fallback: when Private-Token or JOB-TOKEN request headers are present, OAuth validation is skipped and the raw token is used directly for that session. This allows PATs and CI job tokens to be used alongside the OAuth flow on the same server instance. Authorization: Bearer is always treated as an OAuth token — use Private-Token for PAT-based header auth.

Agent Skill Files

Pre-built skill files are available in skills/gitlab-mcp/ for AI agents that support skill/instruction loading (Claude Code, GitHub Copilot, Cursor, etc.).

• SKILL.md — Core guide (~800 tokens) with toolset overview, key workflows, and parameter hints
• reference/ — Detailed workflow docs for code review, merge requests, issues, and pipelines

Install with the skills CLI:

npx skills add zereight/gitlab-mcp --skill gitlab-mcp-skill

Register the skill directory in your AI client to get optimal tool usage guidance without relying solely on the full ListTools response.

Tools 🛠️

Click to expand

1. merge_merge_request - Merge a merge request in a GitLab project
2. approve_merge_request - Approve a merge request (requires appropriate permissions)
3. unapprove_merge_request - Unapprove a previously approved merge request
4. get_merge_request_approval_state - Get merge request approval details including approvers (uses approval_state when available, otherwise falls back to approvals)
5. get_merge_request_conflicts - Get the conflicts of a merge request in a GitLab project
6. list_merge_request_pipelines - List pipelines for a merge request with pagination support
7. execute_graphql - Execute a GitLab GraphQL query
8. create_or_update_file - Create or update a single file in a GitLab project
9. search_repositories - Search for GitLab projects
10. create_repository - Create a new GitLab project
11. create_group - Create a new GitLab group or subgroup (name, path, description, visibility, and optional parent_id)
12. get_file_contents - Get the contents of a file or directory from a GitLab project
13. push_files - Push multiple files to a GitLab project in a single commit
14. create_issue - Create a new issue in a GitLab project
15. create_merge_request - Create a new merge request in a GitLab project
16. fork_repository - Fork a GitLab project to your account or specified namespace
17. create_branch - Create a new branch in a GitLab project
18. get_branch - Get branch details (commit, protection status)
19. list_branches - List branches in project with search filter
20. delete_branch - Delete branch from project
21. list_protected_branches - List protected branches in a project, supports search filter
22. get_protected_branch - Get details of a single protected branch (access levels, force push settings)
23. protect_branch - Protect a repository branch (set push/merge/unprotect access levels)
24. unprotect_branch - Remove protection from a previously protected branch
25. update_default_branch - Change the default branch of a project
26. get_merge_request - Get details of a merge request with compact deployment summary, behind-count, commit addition summary, and approval summary (Either mergeRequestIid or branchName must be provided)
27. get_merge_request_diffs - Get the changes/diffs of a merge request (Either mergeRequestIid or branchName must be provided)
28. list_merge_request_changed_files - STEP 1 of code review workflow. Returns ONLY the list of changed file paths in a merge request — WITHOUT diff content. Call this first to get file paths, then call get_merge_request_file_diff with multiple files in a single batched call (recommended 3-5 files per call). Supports excluded_file_patterns filtering using regex. (Either mergeRequestIid or branchName must be provided)
29. list_merge_request_diffs - List merge request diffs with pagination support (Either mergeRequestIid or branchName must be provided)
30. get_merge_request_file_diff - STEP 2 of code review workflow. Get diffs for one or more files from a merge request. Call list_merge_request_changed_files first, then pass them as an array to fetch diffs efficiently. Batching multiple files (recommended 3-5) is supported. (Either mergeRequestIid or branchName must be provided)
31. list_merge_request_versions - List all versions of a merge request
32. get_merge_request_version - Get a specific version of a merge request
33. get_branch_diffs - Get the changes/diffs between two branches or commits in a GitLab project
34. update_merge_request - Update a merge request (Either mergeRequestIid or branchName must be provided)
35. create_note - Create a new note (comment) to an issue or merge request
36. create_merge_request_thread - Create a new thread on a merge request
37. resolve_merge_request_thread - Resolve a thread on a merge request
38. mr_discussions - List discussion items for a merge request
39. delete_merge_request_discussion_note - Delete a discussion note on a merge request
40. update_merge_request_discussion_note - Update a discussion note on a merge request
41. create_merge_request_discussion_note - Add a new discussion note to an existing merge request thread
42. create_merge_request_note - Add a new note to an existing merge request thread
43. delete_merge_request_note - Delete an existing merge request note
44. get_merge_request_note - Get a specific note for a merge request
45. get_merge_request_notes - List notes for a merge request
46. update_merge_request_note - Modify an existing merge request thread note
47. get_draft_note - Get a single draft note from a merge request
48. list_draft_notes - List draft notes for a merge request
49. create_draft_note - Create a draft note for a merge request
50. update_draft_note - Update an existing draft note
51. delete_draft_note - Delete a draft note
52. publish_draft_note - Publish a single draft note
53. bulk_publish_draft_notes - Publish all draft notes for a merge request
54. list_merge_request_emoji_reactions - List all emoji reactions on a merge request
55. list_merge_request_note_emoji_reactions - List all emoji reactions on a merge request note. Pass discussion_id for discussion thread replies.
56. create_merge_request_emoji_reaction - Add an emoji reaction to a merge request (e.g. thumbsup, rocket, eyes)
57. delete_merge_request_emoji_reaction - Remove an emoji reaction from a merge request
58. create_merge_request_note_emoji_reaction - Add an emoji reaction to a merge request note. Pass discussion_id for discussion thread replies.
59. delete_merge_request_note_emoji_reaction - Remove an emoji reaction from a merge request note. Pass discussion_id for discussion thread replies.
60. update_issue_note - Modify an existing issue thread note
61. create_issue_note - Add a new note to an existing issue thread
62. list_issue_emoji_reactions - List all emoji reactions on an issue
63. list_issue_note_emoji_reactions - List all emoji reactions on an issue note. Pass discussion_id for discussion thread replies.
64. create_issue_emoji_reaction - Add an emoji reaction to an issue (e.g. thumbsup, rocket, eyes)
65. delete_issue_emoji_reaction - Remove an emoji reaction from an issue
66. create_issue_note_emoji_reaction - Add an emoji reaction to an issue note. Pass discussion_id for discussion thread replies.
67. delete_issue_note_emoji_reaction - Remove an emoji reaction from an issue note. Pass discussion_id for discussion thread replies.
68. list_issues - List issues (default: created by current user only; use scope='all' for all accessible issues)
69. my_issues - List issues assigned to the authenticated user (defaults to open issues)
70. get_issue - Get details of a specific issue in a GitLab project
71. update_issue - Update an issue in a GitLab project
72. update_issue_description_patch - Apply a patch (search/replace or unified diff) to an issue description. Reduces token usage by sending only the change instead of the full description. Supports dry_run to preview and create_note to summarize.
73. delete_issue - Delete an issue from a GitLab project
74. list_todos - List GitLab to-do items for the current user
75. mark_todo_done - Mark a GitLab to-do item as done
76. mark_all_todos_done - Mark all pending GitLab to-do items as done for the current user
77. list_issue_links - List all issue links for a specific issue
78. list_issue_discussions - List discussions for an issue in a GitLab project
79. get_issue_link - Get a specific issue link
80. create_issue_link - Create an issue link between two issues
81. delete_issue_link - Delete an issue link
82. list_namespaces - List all namespaces available to the current user
83. get_namespace - Get details of a namespace by ID or path
84. verify_namespace - Verify if a namespace path exists
85. get_project - Get details of a specific project
86. list_projects - List projects accessible by the current user
87. update_project - Update project settings such as description, visibility, default branch, and feature access levels
88. list_project_members - List members of a GitLab project
89. list_labels - List labels for a project
90. get_label - Get a single label from a project
91. create_label - Create a new label in a project
92. update_label - Update an existing label in a project
93. delete_label - Delete a label from a project
94. list_group_projects - List projects in a GitLab group with filtering options
95. list_wiki_pages - List wiki pages in a GitLab project
96. get_wiki_page - Get details of a specific wiki page
97. create_wiki_page - Create a new wiki page in a GitLab project
98. update_wiki_page - Update an existing wiki page in a GitLab project
99. delete_wiki_page - Delete a wiki page from a GitLab project
100. list_group_wiki_pages - List wiki pages in a GitLab group
101. get_group_wiki_page - Get details of a specific group wiki page
102. create_group_wiki_page - Create a new wiki page in a GitLab group
103. update_group_wiki_page - Update an existing wiki page in a GitLab group
104. delete_group_wiki_page - Delete a wiki page from a GitLab group
105. get_repository_tree - Get the repository tree for a GitLab project (list files and directories)
106. list_pipelines - List pipelines in a GitLab project with filtering options
107. get_pipeline - Get details of a specific pipeline in a GitLab project
108. list_deployments - List deployments in a GitLab project with filtering options
109. get_deployment - Get details of a specific deployment in a GitLab project
110. list_environments - List environments in a GitLab project
111. get_environment - Get details of a specific environment in a GitLab project
112. list_pipeline_jobs - List all jobs in a specific pipeline
113. list_pipeline_trigger_jobs - List all trigger jobs (bridges) in a specific pipeline that trigger downstream pipelines
114. get_pipeline_job - Get details of a GitLab pipeline job number
115. get_pipeline_job_output - Get the output/trace of a GitLab pipeline job with optional pagination to limit context window usage
116. validate_ci_lint - Validate provided GitLab CI/CD YAML content for a project
117. validate_project_ci_lint - Validate an existing .gitlab-ci.yml configuration for a project
118. list_ci_catalog_resources - List GitLab CI/CD Catalog resources/components visible to the user
119. get_ci_catalog_resource - Get details for a GitLab CI/CD Catalog resource, including versions and components
120. create_pipeline - Create a new pipeline for a branch or tag
121. retry_pipeline - Retry a failed or canceled pipeline
122. cancel_pipeline - Cancel a running pipeline
123. play_pipeline_job - Run a manual pipeline job
124. retry_pipeline_job - Retry a failed or canceled pipeline job
125. cancel_pipeline_job - Cancel a running pipeline job
126. list_job_artifacts - List artifact files in a job's artifacts archive. Returns file names, paths, types, and sizes
127. download_job_artifacts - Download the entire artifact archive (zip) for a job to a local path. Returns the saved file path
128. get_job_artifact_file - Get the content of a single file from a job's artifacts by its path within the archive
129. list_merge_requests - List merge requests globally or in a specific GitLab project with filtering options (project_id is now optional)
130. list_milestones - List milestones in a GitLab project with filtering options
131. get_milestone - Get details of a specific milestone
132. create_milestone - Create a new milestone in a GitLab project
133. edit_milestone - Edit an existing milestone in a GitLab project
134. delete_milestone - Delete a milestone from a GitLab project
135. get_milestone_issue - Get issues associated with a specific milestone
136. get_milestone_merge_requests - Get merge requests associated with a specific milestone
137. promote_milestone - Promote a milestone to the next stage
138. get_milestone_burndown_events - Get burndown events for a specific milestone
139. list_group_milestones - List milestones in a GitLab group with filtering options
140. get_group_milestone - Get details of a specific group milestone
141. create_group_milestone - Create a new milestone in a GitLab group
142. edit_group_milestone - Edit an existing group milestone
143. delete_group_milestone - Delete a milestone from a GitLab group
144. get_group_milestone_issue - Get issues associated with a specific group milestone
145. get_group_milestone_merge_requests - Get merge requests associated with a specific group milestone
146. get_group_milestone_burndown_events - Get burndown events for a specific group milestone
147. get_users - Get GitLab user details by usernames
148. get_user - Get user details by ID
149. whoami - Get current authenticated user details
150. list_commits - List repository commits with filtering options
151. get_commit - Get details of a specific commit
152. get_commit_diff - Get changes/diffs of a specific commit
153. get_file_blame - Get git blame for a file at a given ref. Each entry maps a contiguous range of source lines to the commit that last changed them (id, author, authored_date, message). Use range_start/range_end to limit blame to specific lines.
154. list_commit_statuses - List statuses for a specific commit
155. create_commit_status - Create or update the status of a specific commit
156. list_group_iterations - List group iterations with filtering options
157. upload_markdown - Upload a file to a GitLab project for use in markdown content
158. download_attachment - Download an uploaded file from a GitLab project by secret and filename
159. health_check - Verify server status and authentication
160. list_events - List all events for the currently authenticated user
161. get_project_events - List all visible events for a specified project
162. list_releases - List all releases for a project
163. get_release - Get a release by tag name
164. create_release - Create a new release in a GitLab project
165. update_release - Update an existing release in a GitLab project
166. delete_release - Delete a release from a GitLab project (does not delete the associated tag)
167. create_release_evidence - Create release evidence for an existing release (GitLab Premium/Ultimate only)
168. download_release_asset - Download a release asset file by direct asset path
169. list_tags - List repository tags with filtering and pagination support
170. get_tag - Get details of a specific repository tag
171. create_tag - Create a new tag in the repository
172. delete_tag - Delete a tag from the repository
173. get_tag_signature - Get the signature of a signed tag
174. get_work_item - Get a single work item with full details including status, hierarchy (parent/children), type, labels, assignees, and all widgets
175. list_work_items - List work items in a project with filters (type, state, search, assignees, labels). Returns items with status and hierarchy info
176. create_work_item - Create a new work item (issue, task, incident, test_case, epic, key_result, objective, requirement, ticket). Supports setting title, description, labels, assignees, weight, parent, health status, start/due dates, milestone, and confidentiality
177. update_work_item - Update a work item. Can modify title, description, labels, assignees, weight, state, status, parent hierarchy, children, health status, start/due dates, milestone, confidentiality, linked items, and custom fields
178. convert_work_item_type - Convert a work item to a different type (e.g. issue to task, task to incident)
179. list_work_item_statuses - List available statuses for a work item type in a project. Requires GitLab Premium/Ultimate with configurable statuses
180. list_custom_field_definitions - List available custom field definitions for a work item type in a project. Returns field names, types, and IDs needed for setting custom fields via update_work_item
181. move_work_item - Move a work item (issue, task, etc.) to a different project. Uses GitLab GraphQL issueMove mutation
182. list_work_item_notes - List notes and discussions on a work item. Returns threaded discussions with author, body, timestamps, and system/internal flags
183. create_work_item_note - Add a note/comment to a work item. Supports Markdown, internal notes, and threaded replies
184. list_work_item_emoji_reactions - List all emoji reactions on a work item
185. list_work_item_note_emoji_reactions - List all emoji reactions on a work item note (comment, thread, or thread reply)
186. create_work_item_emoji_reaction - Add an emoji reaction to a work item (e.g. thumbsup, rocket, eyes)
187. delete_work_item_emoji_reaction - Remove an emoji reaction from a work item
188. create_work_item_note_emoji_reaction - Add an emoji reaction to a work item note (comment, thread, or thread reply)
189. delete_work_item_note_emoji_reaction - Remove an emoji reaction from a work item note (comment, thread, or thread reply)
190. get_timeline_events - List timeline events for an incident. Returns chronological events with notes, timestamps, and tags
191. create_timeline_event - Create a timeline event on an incident. Supports tags: 'Start time', 'End time', 'Impact detected', 'Response initiated', 'Impact mitigated', 'Cause identified'
192. list_webhooks - List all configured webhooks for a GitLab project or group. Provide either project_id or group_id
193. list_webhook_events - List recent webhook events (past 7 days) for a project or group webhook. Use summary mode for overview, then get_webhook_event for full details
194. get_webhook_event - Get full details of a specific webhook event by ID, including request/response payloads
195. search_code - Search for code across all projects on the GitLab instance (requires advanced search or exact code search to be enabled)
196. search_project_code - Search for code within a specific GitLab project (requires advanced search or exact code search to be enabled)
197. search_group_code - Search for code within a specific GitLab group (requires advanced search or exact code search to be enabled)
198. list_project_variables - List CI/CD variables for a project with optional environment scope filter
199. get_project_variable - Get a single CI/CD variable from a project by key, with optional environment scope filter
200. create_project_variable - Create a new CI/CD variable in a project
201. update_project_variable - Update an existing CI/CD variable in a project, with optional filter to disambiguate by environment scope
202. delete_project_variable - Delete a CI/CD variable from a project, with optional filter to disambiguate by environment scope
203. list_group_variables - List CI/CD variables for a group with optional environment scope filter
204. get_group_variable - Get a single CI/CD variable from a group by key, with optional environment scope filter
205. create_group_variable - Create a new CI/CD variable in a group
206. update_group_variable - Update an existing CI/CD variable in a group, with optional filter to disambiguate by environment scope
207. delete_group_variable - Delete a CI/CD variable from a group, with optional filter to disambiguate by environment scope
208. get_dependency_proxy_settings - Get dependency proxy settings for a group (enabled status, blob count, total size, image prefix, TTL policy)
209. update_dependency_proxy_settings - Update dependency proxy settings for a group (enable/disable, credentials for authenticated Docker Hub pulls)
210. list_dependency_proxy_blobs - List cached dependency proxy blobs for a group with cursor-based pagination
211. purge_dependency_proxy_cache - Schedule purge of all cached dependency proxy blobs for a group
212. discover_tools - Discover and activate additional tool categories for this session. Available categories: merge_requests, issues, repositories, branches, projects, labels, ci, groups, pipelines, milestones, wiki, releases, tags, users, workitems, webhooks, search, variables, dependency_proxy. Already-active categories are listed in the response.

Wiki page titles vs. slugs

GitLab derives a wiki page's slug (its URL, /-/wikis/<slug>) from the page title. Passing title to update_wiki_page / update_group_wiki_page therefore renames the page and changes its URL — for nested pages it can also move the page to a different path — which breaks existing links.

To change only the displayed title while keeping the URL stable, do not pass title. Instead, store the display title in the page content's YAML front matter and update the content:

---
title: My Custom Display Title
---

Page body…

GitLab keeps the slug/URL untouched and shows the front-matter title in the UI. Read it back with get_wiki_page using render_html: true, which populates the front_matter field — the plain title field always reflects the slug-derived value.

Testing 🧪

The project includes comprehensive test coverage including remote authorization:

# Run all tests (API validation + remote auth)
npm test

# Run only remote authorization tests
npm run test:remote-auth

# Run all tests including readonly MCP tests
npm run test:all

# Run only API validation
npm run test:integration

All remote authorization tests use a mock GitLab server and do not require actual GitLab credentials.