mcp-github

mcp-github

MCP server for the GitHub REST API that enables interaction with repositories, pull requests, issues, branches, commits, reviews, and code search, with configurable write and destructive operations.

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README

mcp-github

MCP server for the GitHub REST API — repos, PRs, issues, branches, commits, reviews, and code search.

Usage

bun run src/mcp/cli.ts --stdio     # stdio mode (for MCP integration)
bun run src/mcp/cli.ts --port 3845 # HTTP mode

Env Vars

Variable Required Description
GITHUB_TOKEN Yes PAT with repo, read:org scopes
GITHUB_ALLOW_WRITES No Set true to enable PRs, reviews, comments, issues
GITHUB_ALLOW_DESTRUCTIVE No Set true to also enable merge operations
MCP_CACHE_DIR No Cache directory (default: .mcp-github/cache)

Tools

Read-only (always available):

  • GET /github/repos — List repos for user or org
  • GET /github/repos/:owner/:repo — Get repo details
  • GET /github/repos/:owner/:repo/pulls — List PRs
  • GET /github/repos/:owner/:repo/pulls/:number — Get PR details
  • GET /github/repos/:owner/:repo/issues — List issues
  • GET /github/repos/:owner/:repo/branches — List branches
  • GET /github/repos/:owner/:repo/commits — List commits
  • GET /github/search/code — Search code
  • GET /github/search/issues — Search issues/PRs

Write (requires GITHUB_ALLOW_WRITES=true):

  • POST /github/repos/:owner/:repo/pulls — Create PR
  • POST /github/repos/:owner/:repo/pulls/:number/reviews — Submit review
  • POST /github/repos/:owner/:repo/issues — Create issue
  • POST /github/repos/:owner/:repo/issues/:number/comments — Add comment

Destructive (requires GITHUB_ALLOW_DESTRUCTIVE=true):

  • PUT /github/repos/:owner/:repo/pulls/:number/merge — Merge PR

Architecture

Built on edge.libx.js RouterWrapper + describeMCP. Read-only by default with explicit opt-in for writes. Results spooled to disk via spool().

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