Mobile User Engagement Glossary | Storyly

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What is API latency?

API latency is the total amount of time that it is taken by an API system to respond to an API call. This time is calculated from the moment a request is received by the API gateway, till that specific moment when the first response is returned to that same client.

In layman’s terms, this is the delay that is experienced by a user after initiating a web service or an action taken in the mobile app while active in a session. Maintaining an acceptable API latency is a major challenge for app businesses, as a high latency will directly impact the speed and performance of your mobile app and eventually, make your users quit using your app.