> For the complete documentation index, see [llms.txt](https://docs.ativo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ativo.io/rest-api.md).

# REST API

- [Authentication](https://docs.ativo.io/rest-api/authentication.md): Connect to the REST API
- [Version](https://docs.ativo.io/rest-api/version.md): Ativo REST API endpoints and models are versioned
- [Cloud REST API Rate Limiting](https://docs.ativo.io/rest-api/cloud-rest-api-rate-limiting.md): Ativo Programs uses rate limiting on its Cloud REST API to ensure service availability and responsiveness among clients.
- [Cloud REST API](https://docs.ativo.io/rest-api/cloud-rest-api.md): Browse the available end points for the Ativo cloud API.
- [Data Center REST API](https://docs.ativo.io/rest-api/data-center-rest-api.md): Browse the available end points for the Ativo cloud API.