Retell AI MCP Server

Instructions

Implementation Reference

• src/index.ts:1205-1206 (handler)

  The handler logic for the 'retell_list_llms' tool within the executeTool switch statement. It performs a GET request to the Retell API endpoint '/list-retell-llms'.

  case "retell_list_llms":
    return retellRequest("/list-retell-llms", "GET");

• src/index.ts:754-761 (schema)

  The tool descriptor defining the name, description, and input schema (empty object, no parameters required). This schema is used for validation and tool listing.

  {
    name: "retell_list_llms",
    description: "List all Retell LLM configurations.",
    inputSchema: {
      type: "object",
      properties: {}
    }
  },

• src/index.ts:1283-1285 (registration)

  Registration of the tool listing handler that exposes the tools array (including retell_list_llms) via MCP protocol.

  server.setRequestHandler(ListToolsRequestSchema, async () => {
    return { tools };
  });