Trezor Suite® — Getting Started™ Developer Portal

Why build on Trezor Suite?

Security first — Trezor Suite separates private keys from apps and the internet. As a developer you get a predictable, audited environment for signing transactions, verifying addresses, and interacting with hardware wallets without exposing secrets.

Whether you’re building a wallet frontend, a portfolio tracker, or an exchange integration, Trezor Suite provides clear APIs and UX flows that prioritize user consent, cryptographic verification, and reproducibility.

Quick setup

1. Install & connect

Download Trezor Suite on your development machine and connect a Trezor device via USB. Use developer mode or a test device for integration work — never use a primary seed containing funds for testing.

2. Install dependencies

For browser-based integrations you'll typically use trezor-connect. Install with your package manager:

npm install trezor-connect
# or
yarn add trezor-connect

3. Initialize

Initialize the library in your app and request permission to communicate with the device:

import TrezorConnect from 'trezor-connect';

TrezorConnect.init({
  manifest: {
    email: 'dev@example.com',
    appUrl: 'https://yourapp.example'
  }
});

Common developer tasks

Request an address

Prompt the user to confirm a receive address on their Trezor. This ensures the address belongs to the device's seed.

const resp = await TrezorConnect.getAddress({ path: "m/44'/0'/0'/0/0" });

Sign a transaction

Construct a transaction locally, then send it to the device for signing. The device displays inputs and outputs so users verify everything visually.

Security best practices

• Never transmit private keys or seeds to your backend.
• Use HTTPS and strict Content Security Policy (CSP).
• Keep firmware and libraries up to date.

Minimal code example

Example: get a Bitcoin address and show it in your UI after user confirmation.

async function showAddress() {
  const result = await TrezorConnect.getAddress({ path: "m/49'/0'/0'/0/0" });
  if (result.success) {
    console.log('address', result.payload.address);
  } else {
    console.error('error', result.payload.error);
  }
}

Troubleshooting & tips

If the device does not show up, check USB permissions and browser flags. In development consider enabling the remote debugging console to view messages from trezor-connect. For intermittent permission errors, ensure your manifest information is correct and that the app URL matches.

Always present clear, unambiguous information in your UI: transaction amounts, fees, and destinations — users should never be asked to approve vague actions.

Next steps

Explore the API surface for different coins, handle device firmware updates gracefully, and build clear UX flows that guide users through device confirmations. For production, run end-to-end tests using a test device and simulate edge cases like unplugging during a flow.