a2a-sdk==0.3.23 anthropic==0.81.0 fastapi==0.129.0 google-adk==1.25.0 google-genai==1.63.0 httpx==0.28.1 openai==2.21.0 pydantic==2.12.5 uvicorn==0.41.0 xai-sdk==1.6.1