Anthropic Messages API (beta)MCP SDK/FastMCPngrokintermediate30 min

Anthropic API + MCP server custom tool agent

Direct integration of remote custom tools/servers into Claude models without local client SDKs, enabling agentic workflows with external data/tools via standardized protocol.

Prerequisites

  • Anthropic API key
  • Python 3.10+
  • pip install fastmcp anthropic
  • ngrok for public URL (local dev)
  • MCP SDK for advanced servers ([modelcontextprotocol GitHub](https://github.com/modelcontextprotocol))

Further reading