Retell AI MCP Server

Instructions

Implementation Reference

• src/index.ts:1241-1244 (handler)

  The switch case handler within the executeTool function that destructures the input arguments and makes a DELETE request to the Retell API endpoint for deleting a knowledge base source.

  case "retell_delete_knowledge_base_source": {
    const { knowledge_base_id: kbId, source_id } = args;
    return retellRequest(`/delete-knowledge-base-source/${kbId}/${source_id}`, "DELETE");
  }

• src/index.ts:984-1001 (schema)

  The tool definition in the tools array, including name, description, and input schema for validation.

  {
    name: "retell_delete_knowledge_base_source",
    description: "Remove a source from a knowledge base.",
    inputSchema: {
      type: "object",
      properties: {
        knowledge_base_id: {
          type: "string",
          description: "The knowledge base ID"
        },
        source_id: {
          type: "string",
          description: "The source ID to delete"
        }
      },
      required: ["knowledge_base_id", "source_id"]
    }
  },

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

  Registration of the tool listing handler that exposes the tools array containing this tool to MCP clients.

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