# Technical References

> The following table lists each curated **Google Vision** activity and the API it uses.

The following table lists each curated **Google Vision** activity and the API it uses.

You don't need to be familiar with the **Google Vision** APIs to use the activities. These links are for informational purposes only in case you want to learn more about the action happening behind the scenes.

| Activity | API reference |
| --- | --- |
| [Annotate File](https://docs.uipath.com/activities/other/latest/integration-service/uipath-google-vision-annotate-file) | [Google Cloud Vision Annotate - POST](https://cloud.google.com/vision/docs/reference/rest/v1/files/annotate) |