Shopify Update MCP Server

Instructions

Implementation Reference

• src/index.ts:193-218 (registration)

  MCP tool registration including input schema (zod), description, and thin wrapper handler calling ShopifyClient.updateProductPrice
  server.tool( "update-product-price", "Update the price of a product by its ID for all variants", { productId: z.string() .describe("ID of the product to update"), price: z.string() .describe("Price of the product to update to"), }, async ({ productId, price }) => { const client = new ShopifyClient(); try { const response = await client.updateProductPrice( SHOPIFY_ACCESS_TOKEN, MYSHOPIFY_DOMAIN, productId, price ); return { content: [{ type: "text", text: JSON.stringify(response, null, 2) }], }; } catch (error) { return handleError("Failed to update product price", error); } } );
• src/ShopifyClient/ShopifyClient.ts:1441-1531 (handler)

  Core implementation of the price update via GraphQL productUpdate mutation, updating price for all product variants.
  async updateProductPrice( accessToken: string, shop: string, productId: string, price: string ): Promise<UpdateProductPriceResponse> { const myshopifyDomain = await this.getMyShopifyDomain(accessToken, shop); const graphqlQuery = gql` mutation productUpdate($input: ProductInput!) { productUpdate(input: $input) { product { id priceRangeV2 { minVariantPrice { amount currencyCode } maxVariantPrice { amount currencyCode } } variants(first: 100) { edges { node { id price } } } } userErrors { field message } } } `; const variables = { input: { id: productId, variants: { price: price } } }; const res = await this.shopifyGraphqlRequest<{ data: { productUpdate: { product: { id: string; priceRangeV2: { minVariantPrice: {amount: string; currencyCode: string}; maxVariantPrice: {amount: string; currencyCode: string}; }; variants: { edges: Array<{ node: { id: string; price: string; }; }>; }; }; userErrors: Array<{field: string; message: string}>; }; }; }>({ url: `https://${myshopifyDomain}/admin/api/${this.SHOPIFY_API_VERSION}/graphql.json`, accessToken, query: graphqlQuery, variables }); const data = res.data.data; if (data.productUpdate.userErrors.length > 0) { return { success: false, errors: data.productUpdate.userErrors }; } return { success: true, product: data.productUpdate.product }; }
• src/index.ts:196-201 (schema)

  Zod input schema for the tool parameters: productId (string) and price (string).
  { productId: z.string() .describe("ID of the product to update"), price: z.string() .describe("Price of the product to update to"), },
• src/ShopifyClient/ShopifyClientPort.ts:167-180 (schema)

  TypeScript type definition for the output response of updateProductPrice, including success flag, errors, and updated product details.
  export type UpdateProductPriceResponse ={ success: boolean; errors?: Array<{field: string; message: string}>; product?: { id: string; variants: { edges: Array<{ node: { price: string; }; }>; }; }; }
• src/ShopifyClient/ShopifyClientPort.ts:1061-1066 (schema)

  Interface method signature in ShopifyClientPort defining the updateProductPrice method.
  updateProductPrice( accessToken: string, shop: string, productId: string, price: string ): Promise<UpdateProductPriceResponse>;