> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rial.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Kotlin SDK

> Capture inside your Android app.

The Kotlin SDK takes the photo inside your app, signs it with device signals and submits it. Works offline; resumes if the app is killed.

The SDK and its documentation are private. To get access, write to [developers@rial.io](mailto:developers@rial.io?subject=Kotlin%20SDK%20access) with your company and the app you're building. You'll get the package, the integration guide and a publishable key.

Until then, the [REST API](https://docs.rial.io/quickstart.md) works from any backend: same verdict, same capture link.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.