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LangChain

WebRef (paid) for LangChain

dev.workers.johnaio281.webref/webref

Web standards and time reference for agents: HTTP codes, retries, deadlines. Paid via x402.

client:LangChain transport:streamable-http tools:7

Install WebRef (paid) in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "webref": {
            "transport": "streamable_http",
            "url": "https://webref.johnaio281.workers.dev/mcp",
        }
})

tools = await client.get_tools()

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

What LangChain can do once it is connected

WebRef (paid) in other clients