Introduction
If you’re a developer wanting to integrate Trezor hardware wallets, build features around Trezor Suite, or experiment with signing and secure key management—this guide walks you through the essentials: setup, tools, APIs, test environments, and best practices.
Why develop for Trezor?
Trezor provides hardware-based key isolation to protect private keys from internet-connected devices. Integrating Trezor into your app enhances user security by shifting cryptographic signing to the device, avoiding direct exposure of sensitive keys in the browser or server. Learn more about the purpose-built Suite and developer resources on the official docs and developer portal. :contentReference[oaicite:0]{index=0}
What this guide covers
- Getting Trezor Suite and connecting a device.
- Working with Trezor Connect and recommended SDKs.
- Sandbox and testnet workflows.
- Security & UX best practices for hardware wallet integrations.
Prerequisites
Before you begin: a Trezor hardware device (Model One, Model T, or Trezor Safe series), a development machine, and basic familiarity with JavaScript/TypeScript for browser integrations or backend SDKs for signing flows. The official Trezor Suite download and start guides provide step-by-step instructions to install and initialize your device. :contentReference[oaicite:1]{index=1}
Step-by-step: Quick start
1. Install Trezor Suite
Download Trezor Suite (desktop or web app) and complete device setup through the official onboarding flow.
Start guide2. Read the developer docs
Open the Suite & Connect documentation for API reference, packages and code examples. These docs are the canonical source for integration details. :contentReference[oaicite:2]{index=2}
Suite docs3. Use Trezor Connect
Trezor Connect is the most widely used JS integration for browser-based signing flows—check the Connect explorer and examples. :contentReference[oaicite:3]{index=3}
Trezor Connect4. Test on networks & simulate user flows
Use testnets and sandbox wallets; keep firmware and Suite versions current to avoid compatibility issues.
Minimal code example (Trezor Connect)
// initialize Trezor Connect (for browser)
TrezorConnect.init({
connectSrc: 'https://connect.trezor.io/8/', // example path - use official docs for latest
popup: true
});
// request public key (example)
const response = await TrezorConnect.getPublicKey({ path: "m/44'/0'/0'/0/0" });
if (response.success) {
console.log('Public key:', response.payload.publicKey);
} else {
console.error('Error:', response.payload.error);
}
Note: Always consult the official Connect docs for the correct `connectSrc` and for up-to-date examples and versions. :contentReference[oaicite:4]{index=4}
Security best practices
Keep firmware and Suite updated
Trezor releases firmware updates and Suite improvements; keep devices and Suite current to maintain security guarantees and compatibility. The docs and guides include verification steps for downloads and firmware updates. :contentReference[oaicite:5]{index=5}
Never request private keys
Design your application so the private key never leaves the device. Use Trezor’s signing APIs to request user signatures while all key operations happen on-device.
User experience & prompts
Because hardware wallets require user confirmation on the device for critical operations, design UIs that clearly explain what users are signing and why. Use incremental, explicit confirmations rather than large, multi-action prompts.
Important: Trezor Bridge changes
Trezor has deprecated the standalone Trezor Bridge in favor of integration inside Trezor Suite and modern browser pathways—follow the official deprecation notes and migration instructions if your app relied on Bridge. :contentReference[oaicite:6]{index=6}
Testing & CI
Automate what you can: mocked signing, deterministic test vectors, and CI checks for expected wallet flows. For device-level E2E tests, maintain a separate fleet of test devices and follow safety procedures—never use production seeds for tests.
Official resources (quick links)
Use the official resources below for authoritative documentation, downloads, and developer guidance. These are the pages referenced earlier and helpful when building integrations.
- Trezor Suite documentation (Developer docs & package info). :contentReference[oaicite:7]{index=7}
- Trezor Suite (official app). :contentReference[oaicite:8]{index=8}
- Getting started / onboarding. :contentReference[oaicite:9]{index=9}
- Guides: Trezor Suite. :contentReference[oaicite:10]{index=10}
- Trezor Connect guide. :contentReference[oaicite:11]{index=11}
- Trezor Developer / Partner portal. :contentReference[oaicite:12]{index=12}
- Safe series: Safe 5 guide. :contentReference[oaicite:13]{index=13}
- Trezor Support & Knowledge Base. :contentReference[oaicite:14]{index=14}
- Trezor Suite on Google Play. :contentReference[oaicite:15]{index=15}
- Bridge deprecation notes. :contentReference[oaicite:16]{index=16}
Conclusion
Building with Trezor centers on secure, auditable cryptographic operations performed on hardware. Start by installing Suite, reading the docs, and experimenting with Trezor Connect in a sandbox. Protect user flows with clear confirmation UI, keep firmware & Suite up to date, and rely on official docs for the latest APIs.
Need help?
If you run into platform-specific issues, check the Support center or the developer portal’s partner pages for contact and integration guidance. :contentReference[oaicite:17]{index=17}