# Buildscratch Docs ## Docs - [Introduction](https://docs.buildscratch.id/introduction-1956538m0.md): - Managed Authentications [Introduction](https://docs.buildscratch.id/introduction-1956543m0.md): - Utilities [Introduction](https://docs.buildscratch.id/introduction-1956547m0.md): - Utilities > Email [Introduction](https://docs.buildscratch.id/introduction-1956537m0.md): - Artifical Inteligence [Introduction](https://docs.buildscratch.id/introduction-1956548m0.md): ## API Docs - Managed Authentications > Internal Parties [Register Account](https://docs.buildscratch.id/register-account-27673225e0.md): - Managed Authentications > Internal Parties [Authenticate](https://docs.buildscratch.id/authenticate-27673212e0.md): - Managed Authentications > External Parties [Register External](https://docs.buildscratch.id/register-external-27673314e0.md): Register External is an endpoint you can utilize for integrating with your other applications or partners looking to access your API services. We provide an isolated authentication mechanism for this case, allowing you to keep track of internal and external party access. - Managed Authentications > External Parties [OAuth2 Token](https://docs.buildscratch.id/oauth2-token-27673561e0.md): - Managed Authentications > External Parties [OAuth2 Authenticate](https://docs.buildscratch.id/oauth2-authenticate-27673358e0.md): - Utilities > Email [Send Email](https://docs.buildscratch.id/send-email-27672777e0.md): - Utilities > Email [Create Templates](https://docs.buildscratch.id/create-templates-27673918e0.md): You can send emails using custom templates and use them when sending an email. Simply send a template html and we will save the template for you. - Utilities > Email [Update Templates](https://docs.buildscratch.id/update-templates-27674244e0.md): Endpoint to update your template using the template's ID. - Services > Reservations [Availability](https://docs.buildscratch.id/availability-27674349e0.md):