Welcome to the official Trezor Suite Developer Portal. This comprehensive guide is designed to get you up and running with the tools and APIs required to integrate your applications seamlessly with Trezor hardware wallets via Trezor Suite.
Our ecosystem is built on the principles of **open source, transparency, and security**. Integration involves understanding three core components: the Trezor Device Firmware, Trezor Suite, and Trezor Connect.
Trezor Connect is the crucial link, providing a secure API for third-party wallets and dApps to communicate with the Trezor device via Trezor Suite. It enables functions like **authentication, transaction signing, and public key retrieval** without ever exposing private keys to the host computer.
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Before you begin coding, ensure you have the required tools: Node.js, a Trezor device (Model T or One), and the latest version of Trezor Suite installed. We highly recommend using the desktop version of Trezor Suite for development.
Installation of the Trezor Connect SDK is straightforward using npm or yarn. Run the following command in your project directory:
npm install trezor-connect
import TrezorConnect from 'trezor-connect';
TrezorConnect.on('device-connect', event => {
console.log('Trezor Device Connected:', event.features);
});
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A key security feature of Trezor is the passphrase. For developers, correctly implementing passphrase handling via Trezor Connect is vital to respect user privacy and security boundaries. **Private keys never leave the device.**
Trezor Suite allows users to connect to custom backends for enhanced privacy and sovereignty. Your application should be designed to support this configuration.
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A: Trezor Bridge is deprecated. Trezor Suite is the official, secure, and modern companion application that facilitates communication between your Trezor device and your application (via Trezor Connect). It provides a significantly better user experience and robust security features.
A: Yes, the public API endpoints have standard rate limiting to ensure fair usage. For high-volume applications, you should consider using a **custom backend** or contacting the Trezor team to discuss potential dedicated API access or hosting your own node infrastructure. Refer to the Rate Limits link above.
A: The Trezor Connect API returns specific error codes. You should implement logic to check for **'Action Cancelled' (user rejected the transaction on the device)**, 'Device Disconnected', or 'Invalid Data' errors. Always provide clear, actionable feedback to the end-user based on the error received.
A: **Absolutely not.** This is the core principle of a hardware wallet. The Trezor device holds your private keys offline. It only signs transactions, which are then transmitted to your connected computer. The keys are never exposed.
A: Use the **account derivation path** functionality within Trezor Connect. You can request public keys for multiple standard paths (e.g., m/49'/0'/0', m/49'/0'/1', etc.) to manage separate accounts for the same coin.
A: Trezor Suite supports all active Trezor models (Model One, Model T, Safe 3, Safe 5, etc.). It supports **thousands of coins and tokens**, including Bitcoin, Ethereum, Solana, and ERC-20 tokens. Check the API Reference for the most up-to-date list of supported assets and network parameters.
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Ensure your integration adheres to all **Trezor security guidelines** before deploying to production.