GitLab MCP Server

A Model Context Protocol (MCP) server that exposes the entire GitLab API as MCP tools, resources, and prompts for AI assistants. Single static binary — zero dependencies.

Security first: Continuously monitored on SonarCloud with quality gates, coverage, and security scanning. Supports read-only mode, safe mode (dry-run preview), and self-hosted GitLab with TLS verification.

Highlights

• 1006 MCP tools on self-managed Enterprise/Premium, or 1011 on GitLab.com Enterprise/Premium with experimental Orbit Knowledge Graph support — broad GitLab REST API v4 + GraphQL coverage across 163 domain sub-packages: projects, branches, tags, releases, merge requests, issues, pipelines, jobs, groups, users, wikis, environments, deployments, packages, container registry, runners, feature flags, CI/CD variables, templates, admin settings, access tokens, deploy keys, Orbit, and more
• 32 meta-tools (47 on self-managed Enterprise/Premium, 48 on GitLab.com Enterprise/Premium) — domain-grouped dispatchers that reduce token overhead for LLMs (optional, enabled by default). 15 additional self-managed enterprise meta-tools plus the GitLab.com-only gitlab_orbit meta-tool are available for Premium/Ultimate features
• AI model tool-use evaluation — automated schema-only and Docker-backed runs against a populated GitLab CE instance measure tool/action selection, parameter shaping, recovery from GitLab errors, and destructive-action safety across Anthropic, Google, OpenAI, and Qwen. The current published Docker economy run covers 419 live task attempts and 804 expected MCP operations with a 100.0% aggregate final-success proxy; see AI Model Evaluation Results
• 11 sampling actions — LLM-assisted code review, issue analysis, pipeline failure diagnosis, security review, release notes, milestone reports, and more via gitlab_analyze meta-tool (MCP sampling capability)
• 4 elicitation tools — interactive creation wizards (issue, MR, release, project) with step-by-step user prompts
• 46 MCP resources — read-only data: user, groups, group members, group projects, projects, issues, pipelines, members, labels, milestones, branches, MRs, releases, tags, commits, file blobs, wiki pages, MR notes, MR discussions, meta-tool JSON Schemas, single-entity templates (issue, MR, branch, tag, release, label, milestone, commit, wiki page, deployment, environment, job, board, snippet, deploy key, feature flag, group label, group milestone), workspace roots, and 5 workflow best-practice guides
• 38 MCP prompts — AI-optimized: code review, pipeline status, risk assessment, release notes, standup, workload, user stats, team management, cross-project dashboards, analytics, milestones, audit
• 6 MCP capabilities — logging, completions, roots, progress, sampling, elicitation
• 50 tool icons — base64-encoded SVG icons (Sizes: ["any"]) on all tools, resources, and prompts for visual identification in MCP clients
• Pagination on all list endpoints with metadata (total items, pages, next/prev)
• Transports: stdio (default for desktop AI) and HTTP (Streamable HTTP for remote clients)
• Cross-platform: Windows, Linux & macOS, amd64 & arm64
• Self-hosted GitLab with self-signed TLS certificate support

Example Prompts

Once connected, just talk to your AI assistant in natural language:

"List my GitLab projects" "Show me open merge requests in my-app" "Create a merge request from feature-login to main" "Review merge request !15 — is it safe to merge?" "List open issues assigned to me" "What's the pipeline status for project 42?" "Why did the last pipeline fail?" "Generate release notes from v1.0 to v2.0"

The server handles the translation from natural language to GitLab API calls. You do not need to know project IDs, API endpoints, or JSON syntax — the AI assistant figures that out for you. See Usage Examples for more scenarios.

Quick Start

1. Get the server

Download the latest binary for your platform from GitHub Releases and make it executable:

chmod +x gitlab-mcp-server-*  # Linux/macOS only

Or pull the published container image:

docker pull ghcr.io/jmrplens/gitlab-mcp-server:latest

2. Configure GitLab access

Recommended: Run the built-in setup wizard — it configures your GitLab connection and MCP client in one step:

./gitlab-mcp-server --setup

Tip: The wizard supports Web UI, Terminal UI, and plain CLI modes. On Windows, double-click the .exe to launch the wizard automatically.

Manual setup only needs a GitLab Personal Access Token with api scope:

GITLAB_TOKEN=glpat-xxxxxxxxxxxxxxxxxxxx

GITLAB_URL defaults to https://gitlab.com; add it only when you connect to a self-managed GitLab instance.

GITLAB_URL=https://gitlab.example.com

3. Connect your MCP client

Most desktop clients use stdio: the client starts one local MCP server process and talks to it over stdin/stdout. Choose one of these runtime patterns.

Native binary (stdio)

VS Code and Cursor-style MCP configuration:

Add to .vscode/mcp.json in your workspace:

{
  "servers": {
    "gitlab": {
      "type": "stdio",
      "command": "/path/to/gitlab-mcp-server",
      "env": {
        "GITLAB_TOKEN": "glpat-xxxxxxxxxxxxxxxxxxxx"
      }
    }
  }
}

Claude Desktop uses the same server command under mcpServers:

{
  "mcpServers": {
    "gitlab": {
      "command": "/path/to/gitlab-mcp-server",
      "env": {
        "GITLAB_TOKEN": "glpat-xxxxxxxxxxxxxxxxxxxx"
      }
    }
  }
}

For client-specific paths, secure token prompts, HTTP OAuth, and extra IDEs, see IDE Configuration.

Docker launched by an IDE (stdio)

If an IDE starts Docker as the MCP server process, keep docker run -i and pass --http=false after the image name. Do not publish port 8080 in this mode.

{
  "servers": {
    "gitlab": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "GITLAB_TOKEN",
        "-e",
        "GITLAB_URL",
        "-e",
        "GITLAB_SKIP_TLS_VERIFY",
        "ghcr.io/jmrplens/gitlab-mcp-server:latest",
        "--http=false"
      ],
      "env": {
        "GITLAB_TOKEN": "glpat-xxxxxxxxxxxxxxxxxxxx",
        "GITLAB_URL": "https://gitlab.com",
        "GITLAB_SKIP_TLS_VERIFY": "false"
      }
    }
  }
}

Docker or binary as an HTTP MCP server

Use HTTP mode for shared, remote, or multi-user deployments. The Docker image starts in HTTP mode by default, but the flags are shown explicitly here for clarity. These examples publish the container port on host loopback only; --http-addr=0.0.0.0:8080 binds inside the container.

# Fixed GitLab instance for all clients
docker run -d --name gitlab-mcp-server -p 127.0.0.1:8080:8080 \
  ghcr.io/jmrplens/gitlab-mcp-server:latest \
  --http \
  --http-addr=0.0.0.0:8080 \
  --gitlab-url=https://gitlab.com

# Multi-instance mode: clients send GITLAB-URL per request
docker run -d --name gitlab-mcp-server -p 127.0.0.1:8080:8080 \
  ghcr.io/jmrplens/gitlab-mcp-server:latest \
  --http \
  --http-addr=0.0.0.0:8080

HTTP clients authenticate each request with PRIVATE-TOKEN or Authorization: Bearer:

{
  "servers": {
    "gitlab": {
      "type": "http",
      "url": "http://localhost:8080/mcp",
      "headers": {
        "PRIVATE-TOKEN": "glpat-xxxxxxxxxxxxxxxxxxxx"
      }
    }
  }
}

In multi-instance mode, clients must also send GITLAB-URL. See HTTP Server Mode for OAuth, reverse proxy, rate limit, and server-pool details.

4. Verify

Open your AI client and try:

"List my GitLab projects"

See the Getting Started guide for detailed setup instructions.

Tool Modes

Two registration modes, controlled by the META_TOOLS environment variable:

Mode	Tools	Description
Meta-Tools (default)	32 base / 47 self-managed enterprise / 48 GitLab.com Enterprise	Domain-grouped dispatchers with action parameter. Lower token usage.
Individual	863 CE / 1006 self-managed enterprise / 1011 GitLab.com Enterprise	Every GitLab operation as a separate MCP tool.

Meta-tool summary:

Meta-Tool	Actions	Description
gitlab_access	48	Manage GitLab access credentials: access tokens (project/group/personal), deploy tokens, deploy keys, access requests, and invitations.
gitlab_admin	88	GitLab self-managed instance administration: settings, license, broadcast messages, system hooks, Sidekiq monitoring, plan limits, OAuth applications, secure files, Terraform states, cluster agents, dependency proxy cache, plus bulk imports (GitLab→GitLab migrations) and external imports (GitHub/Bitbucket).
gitlab_analyze	11	LLM-assisted analysis of GitLab data via MCP sampling.
gitlab_branch	11	Manage Git branches and branch protections in a project, plus aggregated branch rules (GraphQL).
gitlab_ci_catalog	2	Discover and inspect CI/CD Catalog resources (reusable pipeline components and templates published by groups for import into .gitlab-ci.yml).
gitlab_ci_variable	15	Manage GitLab CI/CD variables at instance, group, and project scope.
gitlab_custom_emoji	3	Manage group-level custom emoji via GraphQL.
gitlab_discover_project	—	Resolve a full git remote URL to a GitLab project and return its project_id and metadata.
gitlab_environment	23	Manage GitLab deployment environments, protected environments, freeze (deploy block) periods, and the deployment record audit trail.
gitlab_feature_flags	10	Manage project feature flags and feature-flag user lists for gradual rollouts.
gitlab_group	130	Manage GitLab groups: CRUD, subgroups, members, labels, milestones, webhooks, badges, boards, uploads, and import/export.
gitlab_interactive_issue_create	—	Create a GitLab issue through step-by-step prompts, with explicit confirmation before calling the GitLab API.
gitlab_interactive_mr_create	—	Create a GitLab merge request through step-by-step prompts, with explicit confirmation before calling the GitLab API.
gitlab_interactive_project_create	—	Create a GitLab project through step-by-step prompts, with explicit confirmation before calling the GitLab API.
gitlab_interactive_release_create	—	Create a GitLab release through step-by-step prompts, with explicit confirmation before calling the GitLab API.
gitlab_issue	63	Manage GitLab issues: CRUD, notes, discussions, links, time tracking, work items, award emoji, statistics, and resource events.
gitlab_job	25	Manage GitLab CI/CD jobs and the CI/CD job token scope: lifecycle, manual play, log/artifact retrieval, and inbound trust boundaries.
gitlab_merge_request	58	Manage GitLab merge request lifecycle plus approval rules and settings, time tracking, subscriptions, context commits, MR dependencies (blocking MRs), todos, related issues, award emoji, and resource events.
gitlab_model_registry	1	Download ML model package files from the GitLab Model Registry.
gitlab_mr_review	23	Review and comment on GitLab merge requests: notes, threaded discussions (inline + general), code diffs, draft notes (batch review), diff versions, and the per-version diff payload.
gitlab_package	24	Manage GitLab package registry, container registry, and protection rules.
gitlab_pipeline	33	Manage GitLab CI/CD pipelines plus trigger tokens, resource groups (mutual-exclusion locks), JUnit test reports, and pipeline schedules.
gitlab_project	122	Manage GitLab projects end-to-end: lifecycle (create/fork/transfer/archive/delete), visibility & access (members, share, approval rules, integrations, webhooks), and advanced features (mirrors, Pages, badges, boards, labels, milestones, uploads, avatars, import/export, housekeeping).
gitlab_release	12	Manage GitLab releases and their asset links (binaries, packages, runbooks).
gitlab_repository	41	Browse and manage GitLab repository content: file tree, read/write/delete files, commits, diffs, cherry-pick, revert, blame, compare branches, contributors, archives, changelogs, submodules, render markdown, and commit discussions.
gitlab_runner	34	Manage GitLab CI/CD runners (instance, group, project) and runner controllers (admin, experimental): CRUD, registration tokens, and job assignments.
gitlab_search	10	Search GitLab by scope (instance / group / project) for code, MRs, issues, commits, milestones, notes, projects, snippets, users, or wiki pages.
gitlab_snippet	34	Manage GitLab snippets (personal, project-scoped, and explore feed): CRUD snippet metadata and content, threaded discussions, notes (project snippets only), and award emoji on snippets and snippet notes.
gitlab_tag	9	Manage Git tags and tag protections in a project, plus GPG signature inspection.
gitlab_template	12	Browse GitLab built-in templates (gitignore, CI/CD YAML, Dockerfile, license, project scaffolding) and lint CI configuration.
gitlab_user	74	User management for GitLab: full user account CRUD plus SSH/GPG keys, emails, personal access tokens (PATs), impersonation tokens, user status, todos, contribution events, notification settings, namespaces, and avatars.
gitlab_wiki	6	CRUD project wiki pages and upload attachments to wikis.
gitlab_attestation 🏢	2	List and download build attestations (SLSA provenance) for project artifacts.
gitlab_audit_event 🏢	6	List and get GitLab audit events at instance, group, and project levels for compliance tracking.
gitlab_compliance_policy 🏢	2	Get and update admin compliance policy settings (CSP namespace configuration).
gitlab_dependency 🏢	4	List project dependencies and create/download SBOM exports (CycloneDX).
gitlab_dora_metrics 🏢	2	Get DORA metrics: deployment frequency, lead time, MTTR, change failure rate.
gitlab_enterprise_user 🏢	4	Manage enterprise users for a GitLab group: list, get, disable 2FA, delete.
gitlab_external_status_check 🏢	8	Manage external status checks for MRs and projects.
gitlab_geo 🏢	8	Manage Geo replication sites: CRUD, repair OAuth, and check replication status (admin, Premium/Ultimate).
gitlab_group_scim 🏢	4	Manage SCIM identities for GitLab group provisioning.
gitlab_member_role 🏢	6	Manage custom member roles at instance or group level.
gitlab_merge_train 🏢	4	Manage GitLab merge trains (automated merge queues).
gitlab_orbit 🏢	5	Experimental GitLab.com-only Orbit Knowledge Graph operations.
gitlab_project_alias 🏢	4	CRUD project aliases: short names that redirect to projects (admin, Premium/Ultimate).
gitlab_security_finding 🏢	1	List pipeline security report findings via GraphQL (Premium/Ultimate).
gitlab_storage_move 🏢	18	Manage repository storage moves for projects, groups, and snippets (admin only).
gitlab_vulnerability 🏢	8	List, triage, and summarize project vulnerabilities (Premium/Ultimate, GraphQL).

32 base / 47 self-managed enterprise / 48 GitLab.com Enterprise meta-tools. Rows marked 🏢 require the Enterprise/Premium catalog; gitlab_orbit additionally requires GitLab.com. See Meta-Tools Reference for the complete list with actions and examples.

Compatibility

MCP Capability	Support
Tools	Up to 1011 individual / 32–48 meta
Resources	46 (static + templates)
Prompts	38 templates
Completions	Project, user, group, branch, tag
Logging	Structured (text/JSON) + MCP notifications
Progress	Tool execution progress reporting
Sampling	11 LLM-powered analysis actions via gitlab_analyze
Elicitation	4 interactive creation wizards
Roots	Workspace root tracking

Tested with: VS Code + GitHub Copilot, Claude Desktop, Claude Code, Cursor, Windsurf, JetBrains IDEs, Zed, Kiro, Cline, Roo Code.

See the full Compatibility Matrix for detailed client support.

AI Model Tool-Use Evaluation

The project includes an automated evaluator for model-facing MCP quality. It can run schema-only checks against the tool catalog or execute validated model tool calls through MCP against a Docker GitLab CE instance populated with fixtures. The evaluator measures whether each model chooses the correct meta-tool and action, sends valid parameters, recovers from actionable GitLab errors, and respects destructive-action safeguards.

Current published result: 2026-05-05 Full Docker Economy Run.

Provider	Model	Compatibility	Tool accuracy	Recovery	Docker live status
Anthropic	claude-haiku-4-5-20251001	OK	100.0%	No repairs	100.0% final across 240 ops
Google	gemini-3.1-flash-lite-preview	OK	100.0%	100.0% (1/1)	100.0% final across 240 ops
OpenAI	gpt-5.4-nano	OK	100.0%	50.0% (2/4)	100.0% final across 240 ops
Qwen	qwen3.6-flash	OK	100.0%	No repairs	100.0% final across 84 ops

The published model-evaluation set covers 419 task attempts and 804 expected MCP operations. Across the selected reports, models emitted 809 tool calls over 809 model requests, with 100.0% aggregate final success. See AI Model Evaluation Results for the detailed current matrix.

Documentation

Full documentation is available at jmrplens.github.io/gitlab-mcp-server.

Document	Description
Getting Started	Download, setup wizard, per-client configuration
IDE Configuration	Per-client stdio, HTTP legacy, and HTTP OAuth examples
Configuration	Environment variables, transport modes, TLS
HTTP Server Mode	Shared HTTP deployments, authentication, server pool isolation
Tools Reference	All individual tools with input/output schemas, including GitLab.com-only Orbit
Meta-Tools	32/47/48 domain meta-tools with action dispatching
Resources	All 46 resources with URI templates
Prompts	All 38 prompts with arguments and output format
Auto-Update	Self-update mechanism, modes, and release format
Testing	Unit, E2E, schema model evaluation, Docker model evaluation, and curated model results
Security	Security model, token scopes, input validation
Architecture	System architecture, component design, data flow
Development Guide	Building, testing, CI/CD, contributing

Tech Stack

Component	Technology
Language	Go 1.26+
MCP SDK	github.com/modelcontextprotocol/go-sdk v1.6.0
GitLab Client	gitlab.com/gitlab-org/api/client-go/v2 v2.24.1
Transport	stdio (default), HTTP (Streamable HTTP)

Building from Source

git clone https://github.com/jmrplens/gitlab-mcp-server.git
cd gitlab-mcp-server
make build

See the Development Guide for cross-compilation and contributing guidelines.

Container Image

The published image is ghcr.io/jmrplens/gitlab-mcp-server:latest. Runtime examples live in Quick Start next to MCP client configuration, and Docker Compose/source-build details live in the Development Guide.

FAQ

Yes. Set GITLAB_URL to your instance URL. When GITLAB_URL is omitted, stdio mode uses https://gitlab.com. Self-signed TLS certificates are supported via GITLAB_SKIP_TLS_VERIFY=true.

The server runs locally on your machine (stdio mode) or on your own infrastructure (HTTP mode). No data is sent to third parties — all API calls go directly to your GitLab instance. See SECURITY.md for details.

Yes. Set GITLAB_READ_ONLY=true to disable all mutating tools (create, update, delete). Only read operations will be available.

Alternatively, set GITLAB_SAFE_MODE=true for a dry-run mode: mutating tools remain visible but return a structured JSON preview instead of executing. Useful for auditing, training, or reviewing what an AI assistant would do.

Both Community Edition (CE) and Enterprise Edition (EE). Set GITLAB_ENTERPRISE=true in stdio mode to enable additional tools for Premium/Ultimate features (DORA metrics, vulnerabilities, compliance, etc.). In HTTP mode, --enterprise can force the Enterprise/Premium catalog, otherwise CE/EE is detected per token+URL pool entry when GitLab reports edition.

The server includes retry logic with backoff for GitLab API rate limits. Errors are classified as transient (retryable) or permanent, with actionable hints in error messages.

Any MCP-compatible client: VS Code + GitHub Copilot, Claude Desktop, Cursor, Claude Code, Windsurf, JetBrains IDEs, Zed, Kiro, and others. The built-in setup wizard can auto-configure most clients.

Contributing

See CONTRIBUTING.md for development guidelines, branch naming, commit conventions, and pull request process.

Security

See SECURITY.md for the security policy and vulnerability reporting.

Code of Conduct

See CODE_OF_CONDUCT.md. This project follows the Contributor Covenant v2.1.

Unnecessary Statistics

Numbers nobody asked for, but here they are anyway.

File counts

Category	Files	Lines
Source (.go, non-test)	650	134,257
Unit tests (_test.go)	412	219,088
End-to-end tests	110	23,718
Total	1,172	377,063

Functions

Category	Count
Source functions	3,988
— exported (public)	2,220
— unexported (private)	1,768
Unit test functions (TestXxx)	9,132
Subtests (t.Run(...))	1,956
End-to-end test functions	246

Ratios worth noting

Observation	Value
Test lines vs source lines	1.63× more tests than code
Average source file length	~206 lines
Average test file length	~531 lines
Comment lines in source	10,436 (~7.8% of source)
Test functions per source function	2.3×

Code patterns

Pattern	Count
if err != nil checks	5,790
defer statements	728
struct types defined	2,031
//nolint suppressions	53
TODO / FIXME / HACK comments	0

Project

Metric	Value
Go packages	197
Direct dependencies (go.mod)	11
Indirect dependencies	47
Git commits	103
Unique contributors	2

Hall of fame

Record	File
Longest source file	cmd/eval_meta_tools/main.go — 5,759 lines
Longest test file	internal/tools/projects/projects_test.go — 6,428 lines

Because why not

Fact	Value
Source code printed at 55 lines/page	~2,441 pages of A4
Source lines mentioning "gitlab"	10,958 (impossible to avoid)
Longest function name in source	ensureLiveCommitDiscussionNoteDeleteTarget (42 chars)
Longest test function name	TestRequiredMissingAndUnknownParamNames_SchemaValidation_ReturnsSortedMissingAndUnknown (87 chars)