Webhooks · API2Cart
eCommerce Webhooks: Real-Time Event Notifications
Subscribe to events across 70+ eCommerce platforms and receive instant HTTP callbacks when orders are placed, products change, or inventory updates — all in a unified format.
Webhooks eliminate the need for constant API polling. Instead of repeatedly checking for changes, your application subscribes to specific events and receives instant HTTP POST notifications the moment something happens in a store.
API2Cart unifies webhooks across 70+ platforms. You subscribe once, receive notifications in a consistent format, and never worry about platform-specific implementations.
How Webhooks Works in API2Cart
- webhook.create — subscribe to any event (order.add, product.update, customer.delete)
- webhook.list — view active subscriptions for a specific store
- webhook.delete — remove a subscription when no longer needed
- Automatic retry on HTTP 5xx responses from your endpoint
Example request
{
"entity": "order",
"action": "add",
"callback": "https://your-app.com/webhooks/handler",
"label": "Order created webhook"
}
Use Cases for Webhooks
Inventory Management
Get an instant notification on product.update to refresh stock levels without polling.
Order Fulfillment
The moment order.add fires, automatically hand the order to fulfillment.
Shipping Tracking
order.shipment.update triggers a tracking info refresh in your dashboard.
Customer CRM
customer.add / customer.update keep your CRM database always current.
Frequently asked questions
The things people ask before using Webhooks.
Which events are supported?
27+ event types across products, orders, customers, categories, shipments, baskets, and subscribers.
How do I verify a webhook is authentic?
Every webhook request includes a signature header, verified against your secret key.
What if my endpoint is temporarily down?
API2Cart automatically retries delivery on HTTP 5xx errors until your endpoint recovers.
Are webhooks available for every platform?
For platforms without native support, API2Cart uses short-interval polling emulation.
Stop polling. Start listening. Subscribe to eCommerce events across 70+ platforms with unified webhooks.
Looking for the full list of supported webhook events? See the webhooks reference. For a step-by-step implementation guide, read How to Use Webhooks for Real-Time Store Data Sync.
Implementation guide: Working with Webhooks.
Which events are supported?
27+ event types across products, orders, customers, categories, shipments, baskets, and subscribers.
How do I verify a webhook is authentic?
Every webhook request includes a signature header, verified against your secret key.
What if my endpoint is temporarily down?
API2Cart automatically retries delivery on HTTP 5xx errors until your endpoint recovers.
Are webhooks available for every platform?
For platforms without native support, API2Cart uses short-interval polling emulation.
