Retell AI MCP Server

Instructions

Implementation Reference

• src/index.ts:1237-1240 (handler)

  Handler implementation that extracts knowledge_base_id and sources from input args and sends a POST request to the Retell API to add sources to the knowledge base.

  case "retell_add_knowledge_base_sources": {
    const { knowledge_base_id, sources } = args;
    return retellRequest(`/add-knowledge-base-sources/${knowledge_base_id}`, "POST", { sources });
  }

• src/index.ts:944-983 (schema)

  Tool schema definition including name, description, and detailed inputSchema for validating knowledge_base_id and sources array.

  {
    name: "retell_add_knowledge_base_sources",
    description: "Add documentation sources (URLs or text) to a knowledge base.",
    inputSchema: {
      type: "object",
      properties: {
        knowledge_base_id: {
          type: "string",
          description: "The knowledge base ID"
        },
        sources: {
          type: "array",
          description: "Array of source configurations",
          items: {
            type: "object",
            properties: {
              type: {
                type: "string",
                enum: ["url", "text", "document"],
                description: "Source type"
              },
              url: {
                type: "string",
                description: "URL for url type sources"
              },
              content: {
                type: "string",
                description: "Text content for text type sources"
              },
              title: {
                type: "string",
                description: "Title for the source"
              }
            }
          }
        }
      },
      required: ["knowledge_base_id", "sources"]
    }
  },