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LangChain getasof: the As Of door get_as_of

How to: LangChain getasof: the As Of door get_as_of

client:LangChain transport:streamable-http tool:get_as_of

Add getasof: the As Of door 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({
        "getasof": {
            "transport": "streamable_http",
            "url": "https://mcp.getasof.ai/mcp",
        }
})

tools = await client.get_tools()
  1. 02

    Save the file and restart LangChain.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that getasof: the As Of door'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 5 November 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.