Convert Your APIs into A2A Agents That Improve With Usage

 # Create the MCP client
 client = MultiServerMCPClient(
     {
         "agent": {
             "transport": "stdio",
             "command": "uv",
             "args": ["run", "python", "a2a_mcp_server.py"],
             "env": {
                 "A2A_AGENT_CARDS": json.dumps([{
                     "url": "https://agent.your-api.com",
                     "custom_headers": {"X-API-KEY": API_KEY},
                 }]),
             },
         }
     }
 )
 
 # Get tools and create agent
 tools = await client.get_tools()
 llm = ChatOpenAI(model="gpt-5.2", api_key=OPENAI_API_KEY)
 agent = create_agent(llm, tools, system_prompt=SYSTEM_PROMPT)
 result = agent.invoke(
     {"messages": [{
         "role": "user",
         "content": "Find me the fastest growing e-commerce sites in the US"
     }]}
 )