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LangChain Signal Leads usage_and_upgrade

How to: LangChain Signal Leads usage_and_upgrade

client:LangChain transport:streamable-http tool:usage_and_upgrade

Add Signal Leads to LangChain

  1. 01

    Open pip install langchain-mcp-adapters and merge this in. Keep any servers already there.

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "leads": {
            "transport": "streamable_http",
            "url": "https://leads.cloudforbots.com/mcp",
        }
})

tools = await client.get_tools()
  1. 02

    Save the file and restart LangChain.

  2. 03

    Ask for something usage_and_upgrade does. LangChain lists the server's tools on connect and calls usage_and_upgrade itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that Signal Leads's identifier in your config matches the one above exactly.

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

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 15 October 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.