使用说明
🚀 Easy MCP - Make MCP Tools as Simple as Local Functions
Integrate any MCP service with one line of code Automatic management of sub process lifecycle · Zero configuration access to LangChain/LangGraph Agent
✨ feature
- ✅ Automatic Resource ManagementNo need to manually start/stop MCP service
- ✅ Zero intrusion integration: Return to the standard LangChain Tool list
- ✅ Multi service supportHigh tech map, weather, and database MCP one-time access
- ✅ Production availableException safe, child process isolation, asynchronous non blocking
🚀 Quick Start
1. Installation
pip install easy-mcp
two 🧪 Call Gaode Map MCP with "5-line code"
from src.easy_mcp import MCPToolLoader
import asyncio
async def main():
async with MCPToolLoader([{
"command": "npx",
"args": ["-y", "@amap/amap-maps-mcp-server"],
"env": {"AMAP_MAPS_API_KEY": "你的密钥"}
}]) as tools:
search = next(t for t in tools if t.name == "maps_text_search")
print(await search.ainvoke({"keywords": "西湖", "city": "杭州"}))
asyncio.run(main())
Output Example
{
"pois": [
{"name": "杭州西湖", "location": "120.1551,30.2741", ...}
]
}
🤖 Building MCP Powered Agent
from langgraph.graph import StateGraph
from src.easy_mcp import MCPToolLoader
async with MCPToolLoader([高德配置]) as tools:
graph = StateGraph(MessagesState)
graph.add_node("agent", create_agent_node(tools))
# ... 添加更多工具结点 ...
app = graph.compile()
await app.ainvoke({"messages": [("user", "西湖附近有什么酒店？")]})
👉 View complete example:examples/full_agent_demo.py
🔧 Supported MCP services
| Service | Installation Command | Required Environment Variables |
|---|---|---|
| Gaode Map | npx @amap/amap-maps-mcp-server |
AMAP_MAPS_API_KEY |
| Weather API | npx @weather/mcp-server |
WEATHER_API_KEY |
| Custom MCP | Any process that complies with the MCP protocol | - |
📂 project structure
easy-mcp/
├── examples/
│ ├── quickstart.py # 5 行上手示例
│ └── full_agent_demo.py # 完整 LangGraph Agent 示例
├── src/easy_mcp/
│ ├── __init__.py # 导出 MCPToolLoader
│ ├── bridge.py # MCP ↔ LangChain 适配器
│ └── client.py # MCP 客户端封装
└── README.md
❓ Frequently Asked Questions (FAQ)
Q: How to add a new MCP service?
Just add a new configuration to the list of MCPToolLoader ([...]):
{
"command": "python",
"args": ["my_mcp_server.py"],
"env": {"API_KEY": "..."}
}
Q: Will child processes remain?
can't. MCPToolLoader ensures:
- MCP subprocess automatically exits 100%
- Do not leave zombie processes behind
- Can still be safely cleaned under abnormal conditions
