LangGraph Agent MCP Server

""" Example client to test MCP server connectivity. """ import asyncio from fastmcp import Client async def main(): """Test the MCP server with various operations.""" # Connect to the MCP server via SSE async with Client("http://localhost:8000/sse") as client: print("=" * 60) print("MCP Server Client Test") print("=" * 60) # List available tools print("\n1. Listing available tools...") tools = await client.list_tools() print(f"Found {len(tools.tools)} tools:") for tool in tools.tools: print(f" - {tool.name}: {tool.description}") # List available resources print("\n2. Listing available resources...") resources = await client.list_resources() print(f"Found {len(resources.resources)} resources:") for resource in resources.resources: print(f" - {resource.uri}") # Read agent info resource print("\n3. Reading agent info...") info = await client.read_resource("agent://info") print(f"Agent Info: {info}") # List available prompts print("\n4. Listing available prompts...") prompts = await client.list_prompts() print(f"Found {len(prompts.prompts)} prompts:") for prompt in prompts.prompts: print(f" - {prompt.name}: {prompt.description}") # Invoke the agent print("\n5. Testing agent invocation...") result = await client.call_tool( "invoke_agent", { "prompt": "What is 2+2?", "thread_id": "test-thread-123" } ) print(f"Agent Response: {result.content[0].text}") print("\n" + "=" * 60) print("Test completed successfully!") print("=" * 60) if __name__ == "__main__": asyncio.run(main())