The API module provides a public-facing, JSON-formatted API to allow retrieving content as raw field data. This is useful for cases like serving content to non-web clients (such as a mobile phone app) or pulling content out of Wagtail for use in another site.
There are currently two versions of the API available: v1 and v2. Both versions are “stable” so it is recommended to use v2. V1 is only provided for backwards compatibility and will be removed from Wagtail soon.
See RFC 8: Wagtail API for full details on our stabilisation policy.