MCP Selection Lab for LangChain
io.github.changhuliu/mcp-selection-lab
Benchmark MCP tool selection with metadata-only routing, collision, abstention, and holdout checks.
client:LangChain
transport:streamable-http
tools:3
Install MCP Selection Lab in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"mcp-selection-lab": {
"transport": "streamable_http",
"url": "https://mcp-selection-lab-production.up.railway.app/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs