# Keyless SDK Documentation

Key steps embed privacy-preserving biometric authentication in your mobile applications:

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**Step 1**: Understand how the Keyless components [interact with your application server](https://docs.keyless.io/consumer/introduction/components).
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**Step 2**: Understand a typical [biometric authentication flow](https://docs.keyless.io/consumer/introduction/integration-flows) and how it interacts with your application.
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**Step 3**: Follow the [getting started guide](https://docs.keyless.io/consumer/mobile-sdk-guide/getting-started) for Android or iOS.
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