GitHub MCP Server vs GitLab MCP Server

When to pick GitHub MCP Server

• Your code review starts with GitHub issues and pull requests. Use get_pull_request to inspect a change and create_pull_request_review to submit a review, alongside repository search and file access.
• You investigate GitHub Actions failures alongside security findings. The server exposes Actions tools, job logs, code scanning alerts and Dependabot toolsets, so you can select the capabilities your investigation needs.
• Your MCP client needs a local process, or your repositories live on GitHub Enterprise Server. Run the server locally over stdio; use GITHUB_HOST or --gh-host to target your enterprise installation.
• You want an assistant limited to inspection. GitHub's --read-only option skips write tools even when you explicitly request them, while --toolsets and --tools let you narrow the exposed capabilities.

When to pick GitLab MCP Server

• Your team reviews changes through GitLab merge requests. Use create_merge_request, get_merge_request_diffs and get_merge_request_pipelines to work with the proposed change and its pipeline results.
• You need to trace a failed GitLab pipeline into a job log. get_job_log complements merge request pipeline access and repository file retrieval during an investigation.
• You want keyword and semantic code search in your GitLab workflow. The server lists search and semantic_code_search; wiki access is also available when you enable the opt-in wikis toolset.
• You use GitLab.com, Self-Managed or Dedicated and want to connect directly to the existing instance. Its HTTP endpoint avoids a separate local server installation, provided MCP access is enabled for your group or instance.

Main differences

• Hosting and transport differ. GitHub offers a local stdio server and a GitHub-hosted HTTP endpoint. GitLab serves MCP from the GitLab instance over HTTP; stdio clients can connect through mcp-remote, which requires Node.js.
• Authentication has different requirements. GitHub supports personal access tokens and OAuth, including local OAuth on github.com. Remote OAuth depends on the host application's integration. GitLab supports OAuth dynamic registration or a pre-registered application, plus fine-grained personal access tokens with MCP tool execution permission. Legacy GitLab personal access tokens are rejected.
• Tool selection uses different controls. GitHub exposes --toolsets, --tools and a read-only mode. GitLab uses X-Gitlab-Enabled-Mcp-Server-Toolsets and X-Gitlab-Enabled-Mcp-Server-Tools headers. Selecting a GitLab tool does not override project permissions or feature requirements.
• Investigation follows each platform's services. GitHub tools cover pull request reviews, Actions and Dependabot findings. GitLab tools cover merge request diffs, pipelines, job logs, semantic code search and wiki pages. Choose around where your team's records and automation already live.
• Enterprise deployment changes the connection path. GitHub Enterprise Server requires the local server because remote hosting is unsupported. GitLab Self-Managed exposes /api/v4/mcp on the instance itself, with MCP access controlled at instance level.

Setup

For GitHub, start Docker and set GITHUB_PAT to your personal access token. The documented Claude Code command is claude mcp add github -e GITHUB_PERSONAL_ACCESS_TOKEN=$GITHUB_PAT -- docker run -i --rm -e GITHUB_PERSONAL_ACCESS_TOKEN ghcr.io/github/github-mcp-server. Grant the token only the permissions your selected operations need.

For GitLab.com, run claude mcp add --transport http gitlab https://gitlab.com/api/v4/mcp, then open Claude Code and use /mcp to authorize through your browser. Replace the hostname for a self-managed instance. Add -s user if you want the configuration available across projects; without it, Claude Code adds the server at local scope.