The Trezor Suite® Developer Portal helps developers integrate hardware-backed crypto operations into apps and services. Use this portal to learn how to authenticate users, sign transactions, query wallet state, and follow security-first patterns that protect end users' private keys.
Frontend engineers, wallet integrators, exchange developers, and security researchers who need to interact with Trezor Suite and Trezor hardware wallets with confidence.
Below is a minimal JavaScript example showing how a web app might prompt a Trezor device to sign a transaction. This is illustrative — consult the API docs for full parameter details.
import { connectToTrezor, signBitcoinTx } from 'trezor-suite-sdk';
// 1. Establish a connection to Trezor Suite bridge or webusb
const client = await connectToTrezor();
// 2. Prepare transaction data (inputs, outputs, network)
const tx = {/* ... transaction data ... */};
// 3. Request signature
const signature = await signBitcoinTx(client, tx);
console.log('Signature:', signature);
Use official SDK packages for stable APIs and security updates.
Pairing with a Trezor device is explicit: the user confirms the connection on the device. Never request sensitive key material through web endpoints — signing requests must be handled by the device.
Transactions are built client-side and then passed to the device for signing. Trezor validates display data on-device so users can confirm amounts and addresses independently.
Official SDKs reduce integration risk. Look for packages that provide:
Tip: prefer typed SDKs (TypeScript) for safer integration and better DX.
Trezor's threat model assumes the host environment may be untrusted. The device provides an isolated signing environment so private keys never leave hardware. Follow the principle of least privilege: request only the scopes you need, and present approval screens that help users understand the operation they are authorizing.
Q: Can I run automated signing in the background?
A: No — signing requires explicit user confirmation on the device to protect keys.
Q: Where do I report bugs or security issues?
A: Use the official support channel or the security disclosure contact found in the developer portal.