How to Install Anthropic Claude MCP in Gemini CLI

Nest Claude within Claude — use Claude as a sub-agent for specialised reasoning tasks

What Anthropic Claude MCP does

The Anthropic Claude MCP server allows you to call Claude models as a tool from within another Claude session — enabling powerful multi-agent architectures where specialised sub-agents handle specific tasks. Features: - Call Claude Haiku, Sonnet, or Opus from within any MCP client - Pass custom system prompts to specialise each sub-agent - Stream responses for long-form generation tasks - Control temperature, max tokens, and other parameters - Chain multiple Claude calls in a single workflow - Use different models for different task types (fast Haiku for triage, Opus for reasoning) - Built-in prompt caching for cost efficiency Architecture patterns this enables: - Orchestrator + worker: main Claude delegates to specialised sub-agents - Critique and refine: one Claude generates, another reviews and improves - Parallel processing: multiple Claudes working on parts of a problem simultaneously - Specialised personas: legal Claude, code Claude, writing Claude all in one workflow

anthropic

claude

multi-agent

orchestration

llm

Installation steps

1Copy the config below
2Open ~/.gemini/settings.json
3Paste inside "mcpServers": {}
4Restart Gemini CLI

Configuration

File location: ~/.gemini/settings.json

settings.jsonjson

{
  "anthropicClaudeMcp": {
    "command": "npx",
    "args": [
      "-y",
      "@anthropic-ai/mcp"
    ],
    "env": {
      "ANTHROPIC_API_KEY": "sk-ant-..."
    }
  }
}

Full server details GitHub Open Config Editor

Install in other clients

🤖Claude Desktop 💻Claude Code ⌨️Cursor 🏄Windsurf ✨OpenAI

For maintainers

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