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Webhook vs API: Key Differences & When to Use Each

Compare webhooks and APIs by timing, data flow, reliability, security, and use case to choose the right approach for your integration.

Sep 21, 2026

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APIs and webhooks both let software systems exchange information, but they initiate communication differently. An API typically responds when another application requests data or asks it to perform an action. A webhook sends a notification automatically when a specified event occurs.

When it comes to webhook vs API, I recommend the following:

Use an API when your application needs to request data or perform an operation on demand.
Use a webhook when another system should notify your application that something happened.
Many business integrations use both, with a webhook starting the workflow and...

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Webhook vs API: Key Differences & When to Use Each

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