# Other OCTO Implementations

In addition to Ventrata and [our clients](https://docs.ventrata.com/additional-resources/ventrata-clients), the [OCTO API open standard](https://docs.octo.travel/) is adopted by technology providers across attractions, tours, and activities, including:

* Peek Pro ([octodocs.peek.com](https://octodocs.peek.com/))
* Zaui ([docs.zaui.com/octo](https://docs.zaui.com/octo/))
* Xola
* Anchor

and others.

This reduces the need to build custom integrations for proprietary APIs. You can establish connectivity with a growing set of OCTO-supporting booking and ticketing providers through a single development project.

To learn more about OCTO members and join the initiative yourself, visit <https://www.octo.travel/>.

A volunteer group also tracks known OCTO implementations by suppliers (booking and ticketing platforms) and resellers in this spreadsheet:

[Known OCTO implementations spreadsheet](https://docs.google.com/spreadsheets/d/1UIgUYAPO3SUsdoGmg5xIGHIBHWHOx7XfQCOzOTML6ms/)

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