github-twin

io.github.ChristopherDavenport/github-twin · v0.0.17

Personal RAG over your GitHub history (commits, code, reviews), served to Claude Code over MCP.

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add github-twin -e GITHUB_TOKEN=<GITHUB_TOKEN> -e ANTHROPIC_API_KEY=<ANTHROPIC_API_KEY> -e GEMINI_API_KEY=<GEMINI_API_KEY> -e GT_PATHS__DATA_DIR=<GT_PATHS__DATA_DIR> -- uvx github-twin==0.0.17

claude_desktop_config.json

{
  "mcpServers": {
    "github-twin": {
      "command": "uvx",
      "args": [
        "github-twin==0.0.17"
      ],
      "env": {
        "GITHUB_TOKEN": "<GITHUB_TOKEN>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "GT_PATHS__DATA_DIR": "<GT_PATHS__DATA_DIR>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "github-twin": {
      "command": "uvx",
      "args": [
        "github-twin==0.0.17"
      ],
      "env": {
        "GITHUB_TOKEN": "<GITHUB_TOKEN>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "GT_PATHS__DATA_DIR": "<GT_PATHS__DATA_DIR>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "github-twin": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "github-twin==0.0.17"
      ],
      "env": {
        "GITHUB_TOKEN": "<GITHUB_TOKEN>",
        "ANTHROPIC_API_KEY": "<ANTHROPIC_API_KEY>",
        "GEMINI_API_KEY": "<GEMINI_API_KEY>",
        "GT_PATHS__DATA_DIR": "<GT_PATHS__DATA_DIR>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`GITHUB_TOKEN` Optional, secret	GitHub personal access token. Optional: github-twin can also pick the token up from `gh auth token` or from its own OAuth device-flow login (`gt auth login`).
`ANTHROPIC_API_KEY` Optional, secret	Optional. Enables the Claude backend for `gt summarize`, `gt distill`, and `gt eval`. Defaults to local Ollama when unset.
`GEMINI_API_KEY` Optional, secret	Optional. Enables the Gemini backend for embedding and the LLM seam. Vertex AI ADC via `GT_GEMINI_PROJECT` is also supported.
`GT_PATHS__DATA_DIR` Optional	Optional. Override the on-disk data directory holding the SQLite index, embeddings, and cached GitHub responses. Defaults to `$XDG_DATA_HOME/github-twin`.

Details

Package	`[email protected]` (PYPI, stdio)
First published	29 May 2026
Last updated	29 May 2026
Registry name	`io.github.ChristopherDavenport/github-twin`

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Installed and run on your own machine, so there is no public endpoint to check.

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