distributed-a2a 0.1.9rc21

A library for building A2A agents with routing capabilities

A2A Agent Library

A Python library for building A2A (Agent-to-Agent) agents with routing capabilities, DynamoDB-backed registry, and LangChain integration.

Features

• StatusAgent: Base agent implementation with status tracking and structured responses
• RoutingAgentExecutor: Agent executor with intelligent routing capabilities
• DynamoDB Registry: Dynamic agent card registry with heartbeat mechanism
• Server Utilities: FastAPI application builder with A2A protocol support
• LangChain Integration: Built on LangChain for flexible model integration

Installation

pip install distributed-a2a

Quick Start

1. Start a server with your agent application:

from distributed_a2a import load_app
from a2a.types import AgentSkill

# Define your agent's skills
skills = [
    AgentSkill(
        id='example_skill',
        name='Example Skill',
        description='An example skill',
        tags=['example']
    )
]

# Create your agent application
app = load_app(
    name="MyAgent",
    description="My specialized agent",
    skills=skills,
    api_key="your-api-key",
    system_prompt="You are a helpful assistant...",
    host="http://localhost:8000"
)

2. Send a request with the client

from uuid import uuid4

from distributed_a2a import RoutingA2AClient

if __name__ == "__main__":
    import asyncio

    request = "Tell me the weather in Bonn"
    client = RoutingA2AClient("http://localhost:8000")
    response: str = asyncio.run(client.send_message(request, str(uuid4())))
    print(response)

Requirements

• Python 3.10+
• langchain
• langchain-core
• langchain-openai
• langgraph
• pydantic
• boto3
• a2a

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.