> For the complete documentation index, see [llms.txt](https://docs.vida.id/identity-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vida.id/identity-stack/sign/digital-signature/poa-sign-inline-api/api-reference.md).

# API Reference

- [Authentication](https://docs.vida.id/identity-stack/sign/digital-signature/poa-sign-inline-api/api-reference/authentication.md)
- [POA Sign API](https://docs.vida.id/identity-stack/sign/digital-signature/poa-sign-inline-api/api-reference/poa-sign-api.md)
- [Transaction Status & Download Document](https://docs.vida.id/identity-stack/sign/digital-signature/poa-sign-inline-api/api-reference/transaction-status-and-download-document.md)
- [Webhook Notification](https://docs.vida.id/identity-stack/sign/digital-signature/poa-sign-inline-api/api-reference/webhook-notification.md)