> For the complete documentation index, see [llms.txt](https://docs.facephi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.facephi.com/docs.facephi-en/rest-api/midapi-v2/voice-services.md).

# Voice Services

Voice biometrics services. Enrollment produces a template from several audio files and authentication compares an audio file against an already issued template.

Both services accept inline content only: they do not include a field `source`, do not accept asset keys and do not include a header `operation-id`.

The custody of the template remains on the client side: the service returns it and does not store it.

#### Available services

* [**Voice Enrollment**](/docs.facephi-en/rest-api/midapi-v2/voice-services/voice-enrollment.md): Generates a voice template from the capture audios.
* [**Voice Authentication**](/docs.facephi-en/rest-api/midapi-v2/voice-services/voice-authentication.md): Compares an audio against a voice template and returns the result.