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fast-agent

Code, Build and Evaluate agents — excellent Model and Skills/MCP/ACP/A2A Support

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python/uvagent-appagentagent-frameworkclimcpmcp-servermcp-clientacppythonagent-skillsskillstuia2aPython

fast-agent is a Python agent framework and toolchain for building, running and evaluating agents, distributed as the evalstate/fast-agent GitHub repository under Apache-2.0. It supports MCP (as client and server), ACP and A2A protocols, skills-based agent definition, and ships both CLI and TUI interfaces, with an AGENTS.md included for coding-agent guidance.

You want a Python framework that covers building agents and evaluating them, with protocol support for MCP, ACP and A2A in one toolchain.

Use it to

  • Build agents in Python with MCP support
  • Evaluate agent behaviour
  • Run agents from a CLI or TUI
  • Serve MCP endpoints from your agents
  • Define reusable agent skills

For Python developers building and evaluating agent applications

Role
agent-app
Language
Python
Licence
Apache-2.0
Forks
444
Open issues
19
Last push
2026-09-13
Latest release
v0.1.12 · 2025-03-24
topicsagent-frameworkmcppythonevaluationclitui