Gemini

Bridge Claude with Google's Gemini via the official Gemini CLI. Leverages Gemini's massive 1M+ token context window for large file and codebase analysis while Claude handles interaction and code editing.

Installation

Run in your terminal:

# Project scope (current project only)
claude mcp add gemini-cli -- npx -y ask-gemini-mcp

# User scope (all projects)
claude mcp add --scope user gemini-cli -- npx -y ask-gemini-mcp

Or install globally:

npm install -g ask-gemini-mcp

Prerequisites

1. Node.js v20.0.0 or higher
2. Gemini CLI installed and authenticated:

npm install -g @google/gemini-cli
gemini login

Tools

Tool	Purpose
ask-gemini	Send prompts to Gemini CLI with @ file syntax. Supports sandbox mode and multi-turn sessions
ask-gemini-edit	Structured code edits via Gemini changeMode. Returns OLD/NEW edit blocks
fetch-chunk	Retrieve subsequent chunks from cached large responses
ping	Fast connection test to verify MCP setup

Models

• Default: gemini-3.1-pro-preview (latest, highest capability)
• Fallback: gemini-3-flash-preview (automatic on quota errors)

Key Features

• 1M+ token context for analyzing entire codebases
• Multi-turn sessions via sessionId for conversation continuity
• Include directories for monorepo context (includeDirs parameter)
• Sandbox mode for safe code execution
• Automatic quota fallback from Pro to Flash

npm

• Package: ask-gemini-mcp
• Binary: ask-gemini-mcp