Gemini API docs MCP and extension for Gemini CLI

This extension provides documentation support for building with the Gemini API on the Gemini CLI or other MCP-enabled tools.

Gemini CLI installation

You can clone the repository directly into the Gemini CLI extensions directory. Choose between a global installation (available to your user everywhere) or a local installation (for the current workspace).

Global Installation

mkdir -p ~/.gemini/extensions
git clone https://github.com/markmcd/gemini-docs-ext.git ~/.gemini/extensions/gemini-docs-ext

Workspace Installation

mkdir -p ./.gemini/extensions
git clone https://github.com/markmcd/gemini-docs-ext.git ./.gemini/extensions/gemini-docs-ext

Gemini CLI will automatically load the extension on startup.

Other tools

You can adapt this extension to provide context for other tools or APIs by following these steps:

1. Create a system .md file: Copy the contents of GEMINI.md to your tool’s system instructions, e.g. CLAUDE.md or CONTEXT.md.

2. Add the MCP servers: gemini-extension.json contains a fairly standard MCP configuration. You may be able to copy the mcpServers block directly into your tool’s MCP configuration.

   {
     "mcpServers": {
       "gemini-docs-mcp": {
         "command": "uvx",
         "args": [
           "--from",
           "mcpdoc",
           "mcpdoc",
           "--urls",
           "GeminiApiDocs:https://ai.google.dev/gemini-api/docs/llms.txt",
           "GeminiApiReference:https://ai.google.dev/api/llms.txt",
           "--transport",
           "stdio"
         ]
       }
     }
   }