The Wayback Machine - https://web.archive.org/web/20220823144045/https://developer.mozilla.org/en-US/docs/Web/API

Web APIs

When writing code for the Web, there are a large number of Web APIs available. Below is a list of all the APIs and interfaces (object types) that you may be able to use while developing your Web app or site.

Web APIs are typically used with JavaScript, although this doesn't always have to be the case.

Specifications

This is a list of all the APIs that are available.

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Interfaces

This is a list of all the interfaces (that is, types of objects) that are available.

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See also