Technical Implementation

• A2A Framework: v0.2 (May 2025) – stateless tasks, Python SDK.

• Smart Contracts: Ethereum + Optimism L2 for gas efficiency.

• Data Storage: IPFS + Arweave (permanent storage).

• Security: HTTP auth, Agent Card validation.

Example gRPC Streaming (Python):

import grpc
from a2a_proto import agent_pb2, agent_pb2_grpc

channel = grpc.insecure_channel('manager.a2a-web3.io:50051')
stub = agent_pb2_grpc.AgentServiceStub(channel)

response_stream = stub.AnalyzeToken(
    agent_pb2.TokenRequest(symbol="PEPE")
)

for response in response_stream:
    print(f"Live update: {response.score}")