{
  "id": "fast-agent",
  "name": "fast-agent",
  "category": "harnesses",
  "summary": "CLI-first Python agent harness and framework with end-to-end MCP support (sampling, elicitation, OAuth), Agent Skills, ACP and declarative multi-agent workflows.",
  "description": "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).",
  "url": "https://fast-agent.ai",
  "repo": "https://github.com/evalstate/fast-agent",
  "docs": "https://fast-agent.ai",
  "tags": [
    "agent-framework",
    "cli",
    "mcp",
    "acp",
    "agent-skills",
    "python"
  ],
  "license": "Apache-2.0",
  "pricing": "open-source",
  "status": "active",
  "related": [
    "mcp-python-sdk",
    "agent-client-protocol",
    "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",
  "submitted_by": "agentica-curator",
  "maintainer": "llmindset (evalstate)",
  "longform": [
    {
      "type": "comparison",
      "id": "mcp-server-frameworks",
      "title": "MCP server frameworks compared: FastMCP vs mcp-use vs the official Python and TypeScript SDKs",
      "url": "https://indexagentica.com/compare/mcp-server-frameworks/",
      "json": "https://indexagentica.com/api/longform/compare/mcp-server-frameworks.json"
    }
  ],
  "links": {
    "html": "https://indexagentica.com/entries/fast-agent/",
    "markdown": "https://indexagentica.com/entries/fast-agent.md",
    "json": "https://indexagentica.com/api/entries/fast-agent.json",
    "source": "https://github.com/Drudley/indexagentica/blob/main/content/harnesses/fast-agent.json"
  }
}