fast-agent

  • Start now

    Run with the uv package manager:

    uvx fast-agent-mcp@latest -x

  • Agent Skills

    Support for Agent Skills to define context efficient behaviour for your Agents. Read the documentation here.

  • New - Elicitation Quickstart Guide

    Get started with MCP Elicitations for User Interaction. Try now

  • Validated Model Support

    Advanced support for models including OpenAI, Anthropic, Hugging Face, llama.cpp and more. Bring your Codex OAuth token.

  • MCP Feature Support

    Full MCP feature support including Elicitation and Sampling and advanced transport diagnostics

    Reference

  • Agent Developer Friendly

    Lightweight deployment - in-built Echo and Playback LLMs allow robust agent application testing

## Getting Started


fast-agent lets you create and interact with sophisticated Agents and Workflows in minutes. It's multi-modal - supporting Images and PDFs in Prompts, Resources and MCP Tool Call results.

Prebuilt agents and examples implementing the patterns in Anthropic's building effective agents paper get you building valuable applications quickly. Seamlessly use MCP Servers with your agents, or host your agents as MCP Servers.

  • uv tool install fast-agent-mcp - Install fast-agent. If you have multiple Python versions, use --python 3.13.5 to ensure you get the latest version of fast-agent.
  • fast-agent go - Start an interactive session...
  • fast-agent go --url https://hf.co/mcp - ...with a remote MCP.
  • fast-agent go --pack analyst --model haiku - ...from an installed or marketplace card pack.
  • fast-agent scaffold - Create Agent and Configuration files.
  • uv run agent.py - Run your first Agent
  • fast-agent quickstart workflow - Create Agent workflow examples

Contributing to docs? See Generated Docs for how to regenerate reference tables and includes.