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LangChain Wicked MCP paywall_get_tenant

How to: LangChain Wicked MCP paywall_get_tenant

client:LangChain transport:streamable-http tool:paywall_get_tenant

Add Wicked MCP 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({
        "wicked-mcp": {
            "transport": "streamable_http",
            "url": "https://mcp.wickedapi.com/mcp",
        }
})

tools = await client.get_tools()
  1. 02

    Save the file and restart LangChain.

  2. 03

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

  3. 04

    If nothing happens, check the server is running and that Wicked MCP'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

Set these first

Wicked MCP will not start until these are set, so paywall_get_tenant never becomes available.

  • WICKEDAPI_API_KEY
  • WICKEDAPI_PAYER_PRIVATE_KEY

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 14 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.