Klaviyo MCP Server

Implementation Reference

• src/tools/reviews.js:35-47 (handler)

  The handler function for the get_product_review tool. It retrieves the specific product review by its ID using the klaviyoClient and returns formatted JSON response or error.

  async (params) => {
    try {
      const review = await klaviyoClient.get(`/product-reviews/${params.id}/`);
      return {
        content: [{ type: "text", text: JSON.stringify(review, null, 2) }]
      };
    } catch (error) {
      return {
        content: [{ type: "text", text: `Error retrieving product review: ${error.message}` }],
        isError: true
      };
    }
  },

• src/tools/reviews.js:32-34 (schema)

  Zod input schema for the get_product_review tool, requiring a string 'id' parameter.

  {
    id: z.string().describe("ID of the product review to retrieve")
  },

• src/tools/reviews.js:30-49 (registration)

  Direct registration of the get_product_review tool on the server using server.tool().

  server.tool(
    "get_product_review",
    {
      id: z.string().describe("ID of the product review to retrieve")
    },
    async (params) => {
      try {
        const review = await klaviyoClient.get(`/product-reviews/${params.id}/`);
        return {
          content: [{ type: "text", text: JSON.stringify(review, null, 2) }]
        };
      } catch (error) {
        return {
          content: [{ type: "text", text: `Error retrieving product review: ${error.message}` }],
          isError: true
        };
      }
    },
    { description: "Get a specific product review from Klaviyo" }
  );

• src/server.js:47-47 (registration)

  Invocation of registerReviewTools which registers the get_product_review tool among others to the main MCP server.

  registerReviewTools(server);