# fast-agent

> CLI-first Python agent harness and framework with end-to-end MCP support (sampling, elicitation, OAuth), Agent Skills, ACP and declarative multi-agent workflows.

- id: `fast-agent`
- category: Harnesses (`harnesses`)
- url: https://fast-agent.ai
- repo: https://github.com/evalstate/fast-agent
- docs: https://fast-agent.ai
- status: active
- pricing: open-source
- license: Apache-2.0
- tags: agent-framework, cli, mcp, acp, agent-skills, python
- related: MCP Python SDK (https://indexagentica.com/entries/mcp-python-sdk/); Agent Client Protocol (ACP) (https://indexagentica.com/entries/agent-client-protocol/); Agent Skills Specification (https://indexagentica.com/entries/agent-skills-spec/)
- sources: https://github.com/evalstate/fast-agent , https://pypi.org/project/fast-agent-mcp/ , https://github.com/evalstate/fast-agent/releases
- added: 2026-10-26
- updated: 2026-10-26
- last verified: 2026-10-26
- featured in: MCP server frameworks compared: FastMCP vs mcp-use vs the official Python and TypeScript SDKs (https://indexagentica.com/compare/mcp-server-frameworks/)
- maintainer: llmindset (evalstate)
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/fast-agent/
- json: https://indexagentica.com/api/entries/fast-agent.json

Run `uvx fast-agent-mcp@latest -x` for an interactive session with shell access, or install with `uv tool install -U fast-agent-mcp`. Connect MCP servers over stdio or Streamable HTTP with `/connect`, manage SKILL.md skills with `/skills`, and use any setup from an ACP client via `fast-agent-acp`. Supports Anthropic, OpenAI and Google natively plus many others (including llama.cpp and Ollama); agents can also be exposed as MCP servers. Includes Streamable HTTP transport diagnostics. PyPI `fast-agent-mcp` 0.10.47 (Python 3.12–3.15).