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mcp/harbor
LangChain

mcp server for LangChain

dev.leanroute/mcp-server

Leanroute MCP: route to 13 LLM providers, check pricing/usage/credit, manage keys from any agent.

client:LangChain transport:stdio runtime:npm

Install mcp server in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "mcp-server": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "@leanroute/mcp-server"],
        }
})

tools = await client.get_tools()

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

mcp server in other clients

mcp server MCP server