> 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/sdks/backend-sdk/selphid/technical_documentation/api_reference/authentication.md).

# Authentication

- [/api/v1/selphid/authenticate-facial/images](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/selphid/technical_documentation/api_reference/authentication/api-v1-selphid-authenticate-facial-images.md)
- [/api/v1/selphid/authenticate-facial/image/template](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/selphid/technical_documentation/api_reference/authentication/api-v1-selphid-authenticate-facial-image-template.md)
- [/api/v1/selphid/authenticate-facial/templates](https://docs.facephi.com/docs.facephi-en/sdks/backend-sdk/selphid/technical_documentation/api_reference/authentication/api-v1-selphid-authenticate-facial-templates.md)