Using the API

Attio's API is a REST API, which exchanges JSON over HTTP. In the following section, you will find guidance about working with the API:

A note about versioning

The API version for this documentation is version 2 (V2), which is the focus of current feature development. We won't make any breaking changes for this version.

In addition to the version documented here, there is also a legacy V1 API, which will remain available until the end of 2023. Apart from urgent bugfixes, we don't intend to make further changes to the V1 API.