API Technology

7 July 2026 | Yuriy Klymyk

Summary: API2Cart eCommerce webhooks deliver real-time HTTP POST notifications to your application when store events occur (new order, product update, customer change). Create webhooks with webhook.create, specifying the entity, action, and your callback URL. For complete implementation details, see the full webhooks documentation. Why eCommerce Webhooks Matter Without eCommerce webhooks,... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart connects to 70+ eCommerce platforms using two methods: API-based integration (OAuth/token credentials for Shopify, BigCommerce, eBay, Etsy, Amazon) and bridge-based integration (a small file on the server for Magento, WooCommerce, PrestaShop, OpenCart). Both are managed through the account.cart.add API method. Connecting a B2B application to multiple eCommerce platforms... Read More

7 July 2026 | Yuriy Klymyk

Summary: This article walks through how to build a product listing tool that publishes products to multiple eCommerce platforms simultaneously using API2Cart. It covers reading product data from a source, transforming it for different channels, and using product.add and product.add.batch to create listings across Shopify, WooCommerce, Magento, eBay, Etsy, Amazon,... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart provides batch methods (product.update.batch, product.add.batch, order.shipment.add.batch) for processing multiple records in one request. Combined with pagination (count + start parameters) and date filters (modified_from), this enables efficient sync for stores with thousands of products. When your application manages hundreds or thousands of products and orders across multiple stores,... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart's product variants API provides a unified model for all product types across platforms. This article gives a high-level overview of how different platforms structure products and variants, and links to detailed guides for implementation. The Challenge: Every Platform Structures Products Differently If you build a product sync, PIM,... Read More

7 July 2026 | Yuriy Klymyk

Summary: Use API2Cart’s order.shipment.add method to push tracking numbers to any connected store with a single API call. For bulk fulfillment, use order.shipment.add.batch. The API normalizes carrier names and handles partial fulfillment across all platforms. Adding shipment tracking information to orders is a critical step in fulfillment automation. When integrating... Read More

7 July 2026 | Yuriy Klymyk

Summary: To prevent product duplication during multi-store sync, use API2Cart’s product.find method to check if a product exists by SKU before calling product.add. This upsert pattern works across all 70+ supported platforms. When syncing product data across multiple eCommerce stores, one of the most common issues is creating duplicate records... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart supports three authentication methods for connecting stores: OAuth 2.0 (Shopify, eBay, Etsy, Amazon), API key/token (BigCommerce, LightSpeed), and Connection Bridge (Magento, WooCommerce, PrestaShop, OpenCart). All methods are accessed through a single account.cart.add API call. Before your application can access store data through API2Cart, each store must be connected... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart's sync inventory API supports multi-location inventory (multi-stock) through the warehouse_id parameter and the inventory array on products. Use cart.info to retrieve warehouse configurations, product.list with inventory fields to get per-warehouse stock levels, and product.update with warehouse_id to update quantities at specific locations. Why Use a Unified Sync Inventory... Read More

7 July 2026 | Yuriy Klymyk

Summary: API2Cart provides access to custom fields and metadata through the additional_fields parameter on order and customer methods, cart.meta_data.list for store-level metadata, and customer.attribute.list for custom customer attributes. This covers VAT numbers, custom checkout fields, and platform-specific metafields. eCommerce stores often contain custom data beyond the standard product, order, and... Read More