AI engineering glossary · Web APIs HTTP
What is webhook?
Webhook (also called HTTP callback, Reverse API): A way for one service to notify another by sending an HTTP POST to a URL you provide when something happens, instead of you repeatedly asking. It reverses the usual flow and delivers events quickly with little wasted traffic.
Webhook: an example
Razorpay posts a payment.captured event to your /webhook URL as soon as a customer pays.
Related terms
More Web APIs HTTP terms
- Webhook signature
- WebSocket
- 200 OK
- 201 Created
- 204 No Content
- 304 Not Modified
- 400 Bad Request
- 401 Unauthorized
Where you learn it
Webhook is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.