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GitDiagram

Official registry Developer tools

Architecture diagrams, explanations and Mermaid source for public GitHub repositories.

Source code Website Documentation

What can you do with GitDiagram?

  • Watch a repository explained in a narrated video, or press Video on any diagram page.
  • Explore the architecture with an AI-generated diagram and streamed explanation.
  • Jump to the code by clicking any component's linked file or directory.
  • Use private repositories with a GitHub token via Private Repos in the header.
  • Export diagrams as PNG or copy the Mermaid source.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http gitdiagram 'https://gitdiagram.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "gitdiagram": {
            "type": "http",
            "url": "https://gitdiagram.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. GitDiagram
  2. New: explainer videos
  3. Features
  4. Use GitDiagram from AI agents
  5. Run locally
  6. Development

GitDiagram

Visualize any codebase: turn any public or private GitHub repository into an interactive architecture diagram, or watch it explained in a one-minute narrated video. AI agents can use it too, through the MCP server or the Markdown version of any diagram (gitdiagram.com/owner/repo.md).

Try GitDiagram → · Or replace hub with diagram in any GitHub repository URL.

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New: explainer videos

GitDiagram can now turn a repository into a narrated video of about a minute. The video starts with what the project is for and what people do with it, then shows briefly how its main parts fit together and one decision under the hood.

  • Watch the gallery → or add /video to any diagram URL, such as gitdiagram.com/owner/repo/video.
  • Download an MP4 in landscape or vertical (9:16), with captions burned in.
  • Making new videos is in early access. Anyone can watch videos that already exist.

Features

  • Watch a repository explained in a narrated video, or press Video on any diagram page.
  • Explore the architecture with an AI-generated diagram and streamed explanation.
  • Jump to the code by clicking any component's linked file or directory.
  • Use private repositories with a GitHub token via Private Repos in the header.
  • Export diagrams as PNG or copy the Mermaid source.

Use GitDiagram from AI agents

GitDiagram is a remote MCP server at https://gitdiagram.com/mcp (no key or sign-in). Agents can read a public repository's architecture explanation, components, connections and Mermaid source, search the stored diagrams, and get explainer videos.

# Claude Code: the plugin adds the MCP server and a /gitdiagram skill
claude plugin marketplace add ahmedkhaleel2004/gitdiagram
claude plugin install gitdiagram@gitdiagram
# ...or just the MCP server
claude mcp add --transport http gitdiagram https://gitdiagram.com/mcp

# Codex
codex mcp add gitdiagram --url https://gitdiagram.com/mcp

# Gemini CLI
gemini extensions install https://github.com/ahmedkhaleel2004/gitdiagram

# GitHub Copilot CLI
copilot mcp add --transport http gitdiagram https://gitdiagram.com/mcp

In other clients (ChatGPT, Windsurf, Zed, LM Studio, Goose and more), add a remote MCP server with the URL https://gitdiagram.com/mcp. Then ask something like "how is fastapi/fastapi structured?".

Run locally

Requires Bun, Cloudflare R2, Upstash Redis, and an OpenAI or OpenRouter API key. See the setup guide for prerequisites and configuration.

git clone https://github.com/ahmedkhaleel2004/gitdiagram.git
cd gitdiagram
bun install
cp .env.example .env

Fill in .env using the configuration guide, then start the app:

bun run dev

Open localhost:3000.

Explainer videos are off by default. To turn them on, set VIDEO_EXPLAINER_ENABLED=1, NEXT_PUBLIC_VIDEO_EXPLAINER=1, ANTHROPIC_API_KEY, OPENAI_API_KEY and OPENROUTER_API_KEY (for the voice) in .env. See .env.example for the other video settings.

Development

Built with Next.js, React, TypeScript, Tailwind CSS, and Mermaid. Videos use Claude or GPT for the script and scenes and OpenRouter (Gemini 3.8 Flash TTS) for the voice. Deployed on Cloudflare Workers.

Contributions are welcome. Open an issue or pull request with a focused description and verification notes.

Inspired by Romain Courtois's Gitingest.

Frequently asked questions

What is GitDiagram?

Architecture diagrams, explanations and Mermaid source for public GitHub repositories.

How do I install GitDiagram?

It runs as a remote server. In Claude Code: claude mcp add --transport http gitdiagram 'https://gitdiagram.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does GitDiagram need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is GitDiagram open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains GitDiagram?

It is published by ahmedkhaleel2004. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.