API vs Webhook
An API is a two-way conversation you initiate whenever you need data, a webhook is the opposite, a message the other system sends to you automatically the moment something happens. Both move data between systems, but the trigger comes from a different side.
API
A set of rules that allows different software applications to talk to each other and share data. It defines how software components interact, letting apps request and exchange data securely.
Webhook
An automated message sent from one system to another when a specific event happens, acting like an instant notification. It fires as an HTTP callback the moment a pre-configured event occurs.
You, whenever you need something
The other system, the moment an event occurs
On demand, whenever called
Real time, as soon as the event happens
Pulling data or triggering an action
Getting notified instantly (a payment succeeded, a form was submitted)
| Who initiates the request | You, whenever you need something | The other system, the moment an event occurs |
|---|---|---|
| Timing | On demand, whenever called | Real time, as soon as the event happens |
| Typical use | Pulling data or triggering an action | Getting notified instantly (a payment succeeded, a form was submitted) |