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mcp/harbor
LangChain

gcf proxy for LangChain

io.github.blackwell-systems/gcf-proxy

Drop-in MCP proxy. 71% fewer tokens. Session dedup compounds to 92%. Zero code changes.

client:LangChain transport:stdio runtime:npm

Install gcf proxy in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "gcf-proxy": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "@blackwell-systems/gcf-proxy"],
        }
})

tools = await client.get_tools()

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

gcf proxy in other clients

gcf proxy MCP server