UKey Developer Portal

Device Connection

Link UKey hardware through USB or BLE with the right transport for each platform.

A browser-friendly USB bridge for web apps and desktop flows.

Bluetooth transport built for React Native apps.

Bluetooth transport for native iOS and Android apps.

SDKs and APIs for connecting wallets, requesting signatures, and wiring in workflows.

A provider layer for chain access, signing, and wallet events.

A ready-made connection UI with mobile-first support.

Move signing into a QR-based offline flow when network isolation matters.

Sign transactions offline with QR exchange between device and app.

Get support for SDK setup, transport choices, and launch checks.