PriceAtlas MCP Server

Instructions

Implementation Reference

• src/index.ts:118-130 (handler)

  The implementation of the get_world_prices MCP tool, which queries the Open Food Facts API for world prices based on a barcode.

  server.tool(
    'get_world_prices',
    'Get aggregated world prices for a product from Open Food Facts global database. Shows price ranges across countries.',
    { barcode: z.string().describe('Product barcode (8-14 digits)') },
    async ({ barcode }) => {
      try {
        const result = await api(`/api/world-prices?barcode=${barcode}`);
        return text(result);
      } catch (e) {
        return errorResult(`World prices failed: ${(e as Error).message}`);
      }
    },
  );