> For the complete documentation index, see [llms.txt](https://docs.keyless.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.keyless.io/web-sdk/web-sdk-reference.md).

# Web SDK Reference

- [UI Customization](https://docs.keyless.io/web-sdk/web-sdk-reference/ui-customization.md)
- [Localization](https://docs.keyless.io/web-sdk/web-sdk-reference/localization.md)
- [Lockout Policy](https://docs.keyless.io/web-sdk/web-sdk-reference/lockout-policy.md): This pages explains how the Lockout Policy works, what the implications are for users and how it is set.
- [Error Handling](https://docs.keyless.io/web-sdk/web-sdk-reference/error-handling.md)
- [Camera Permission Flow](https://docs.keyless.io/web-sdk/web-sdk-reference/camera-permission-flow.md)
- [Signing Transactions](https://docs.keyless.io/web-sdk/web-sdk-reference/signing-transactions.md)
- [Add OperationID to an authentication](https://docs.keyless.io/web-sdk/web-sdk-reference/add-operationid-to-an-authentication.md)
- [Multi-Threading](https://docs.keyless.io/web-sdk/web-sdk-reference/multi-threading.md)
- [User Authorization](https://docs.keyless.io/web-sdk/web-sdk-reference/user-authorization.md)