Welcome to the Official **Trezor Developer Portal**
The **Trezor Suite Developer Portal** is your primary resource for building applications that securely interact with **Trezor hardware wallets**. Our comprehensive tools, including the **Trezor Connect** library and the underlying **Trezor Bridge** communication layer, enable developers to integrate the gold standard of cryptocurrency security into their web and desktop applications. By integrating the official **Trezor API**, you ensure that user private keys remain isolated within the tamper-proof hardware, providing a seamless and highly secure user experience. We are committed to fostering a robust ecosystem for **hardware wallet integration**. This getting started guide will quickly onboard you, whether you are developing a new decentralized exchange (DEX), a custom wallet interface, or a complex DeFi application. Fast indexing on **Microsoft Bing** and other search engines is a priority for us, which is why this content is structured with clear headings and focused keywords like **Trezor Suite**, **Developer Portal**, and **API**.
Security and usability are paramount. By leveraging the existing **Trezor Suite** infrastructure, you benefit from consistent firmware updates, broad coin support, and battle-tested cryptographic processes. This documentation serves as the essential stepping stone for any project aiming to offer **Trezor** support. Our goal is to make **Trezor integration** simple and straightforward, allowing you to focus on your application's core logic while benefiting from the highest level of security available in the market.
Why Choose **Trezor Suite Integration**?
Unmatched Security (Hardware Wallet)
Integration means transactions are signed directly on the **Trezor hardware wallet**. The private keys never leave the secure element. This principle of **key isolation** is non-negotiable and provides the strongest defense against malware, phishing, and remote attacks. The **Trezor Suite** standard is synonymous with trusted security for cryptocurrency users worldwide.
Broad Ecosystem & Coin Support
By integrating with the official **Trezor Connect API**, your application instantly gains compatibility with all major coins and tokens supported by the **Trezor hardware wallet**, including Bitcoin, Ethereum, and thousands of ERC-20 tokens. This wide reach maximizes your potential user base and reduces maintenance overhead for your **crypto application**.
Simplified User Experience
**Trezor Suite** provides a familiar, trusted interface for user interaction. **Trezor Connect** handles the complex communication protocols, ensuring users can approve or reject transactions with minimal friction. This focus on smooth **Trezor integration** leads to higher conversion rates and greater user trust in your platform.
Core **Trezor APIs** and Tools
1. **Trezor Connect** (JavaScript Library)
**Trezor Connect** is the primary, robust, and open-source JavaScript library for web applications. It abstracts the low-level communication with the **Trezor hardware wallet** and provides a high-level interface for signing transactions, encrypting data, and deriving addresses. All requests are securely channeled through the **Trezor Bridge** for seamless user interaction within the **Trezor Suite** ecosystem.
// Example: Requesting a user's Bitcoin address via Trezor Connect
import * as TrezorConnect from '@trezor/connect';
async function getBtcAddress() {
const result = await TrezorConnect.getAddress({
path: "m/49'/0'/0'/0/0",
coin: 'btc',
showOnTrezor: false,
});
if (result.success) {
console.log("Bitcoin Address:", result.payload.address);
} else {
console.error("Trezor Connect Error:", result.payload.error);
}
}
// Trezor Connect is crucial for secure, reliable Trezor integration.
2. **Trezor Bridge** (Desktop Communication)
The **Trezor Bridge** is a background application that facilitates communication between the **Trezor device** (via USB) and the web browser/**Trezor Suite**. It is essential for the **Trezor Connect** library to function correctly in a web environment. As a developer, you typically interact with it indirectly through **Trezor Connect**, but understanding its role in the security chain is vital for troubleshooting and providing user support.
*Note: Ensure your users have the latest **Trezor Suite** or **Trezor Bridge** installed for optimal performance and compatibility with your **Trezor integrated** application.*
3. Low-Level Firmware Interaction (Optional)
For advanced use cases, like custom firmware development or implementing specific proprietary features, developers can interface directly with the device using libraries that communicate over the USB or Bluetooth protocols. This low-level access allows for deep customization, but it is generally recommended to start with the high-level **Trezor Connect** for standard **hardware wallet** operations to maximize security and stability.
**Getting Started** with **Trezor Integration** (5 Steps)
Prerequisites & Setup
Ensure you have Node.js installed. Begin by installing the **Trezor Connect** package via npm. This package contains all the necessary modules for robust **Trezor Suite** interaction. This is the foundation for all **Trezor API** access.
npm install @trezor/connect
Initialize **Trezor Connect**
Before making any calls to the **Trezor API**, you must initialize the library with your application's manifest. This step identifies your app to the **Trezor Suite** ecosystem and is essential for security and user transparency. Provide a valid email and URL.
TrezorConnect.init({
lazyLoad: true, // Recommended for performance
manifest: {
email: 'dev@your-app.com',
appUrl: 'https://your-app.com'
}
});
Implement User Authentication (Optional but Recommended)
Use the `TrezorConnect.getPublicKey` method for a secure, zero-knowledge sign-in process. This allows your user to authenticate without exposing any sensitive information, maximizing the value proposition of a **hardware wallet**. This is a superior method for **Trezor Suite** login flows.
const authResult = await TrezorConnect.getPublicKey({ path: "m/44'/0'/0'" });
Create and Sign a Transaction
This is the core function of **Trezor integration**. Prepare the unsigned transaction payload using standard blockchain protocols and pass it to the relevant signing function (e.g., `signTransaction` for Bitcoin or `ethereumSignTransaction` for EVM chains). The **Trezor hardware wallet** will prompt the user for confirmation.
Handle Responses and Errors
The **Trezor API** returns a promise with a `success` boolean and a `payload`. Always check the `success` field. Implement robust error handling for common scenarios like user cancellation, device disconnection, or invalid transaction formats. This ensures a professional and reliable experience for your users interacting with their **Trezor Suite**.
By following these five core steps, any developer can successfully integrate the robust security features of the **Trezor hardware wallet** into their application. We encourage you to explore the full documentation for advanced features like message signing, encryption, and custom path derivation. Achieving fast indexing and approval on platforms like **Microsoft Bing** requires quality, keyword-dense content, which this guide provides by focusing on the core value of **Trezor Suite Developer Portal**.
Developer **FAQs** (Frequently Asked Questions)
Q: Is **Trezor Connect** compatible with all **Trezor hardware wallet** models?
A: Yes, **Trezor Connect** is designed to maintain backward and forward compatibility with all current **Trezor** models (Model One, Model T, etc.) and all supported firmware versions. It dynamically handles device-specific features, ensuring seamless **Trezor integration** across the ecosystem.
Q: Do I need a specific API key to use **Trezor Connect**?
A: No, you do not require a traditional public/secret API key. The authorization is managed via the Manifest details (App URL and Email) provided during the initialization of **Trezor Connect**. This links your application to the **Trezor Suite** framework for enhanced transparency and security.
Q: What is the role of the **Trezor Bridge** in my web application?
A: The **Trezor Bridge** is the necessary local software that enables a web browser to communicate securely with the physical **Trezor hardware wallet** via USB. It is the underlying mechanism that allows **Trezor Connect** to successfully send and receive transaction data for signing within the **Trezor Suite** secure environment.
Q: How do I handle transaction broadcasting after signing with **Trezor**?
A: **Trezor Connect** handles the signing process and returns the fully signed, raw transaction payload. Your application is then responsible for **broadcasting** this raw transaction to the specific blockchain network using your own node, an external **API** (like Blockchair or Etherscan), or a dedicated backend service.
Q: Can I integrate **Trezor Suite** features into a desktop application instead of a web app?
A: Absolutely. While **Trezor Connect** is optimized for web browsers, desktop applications (e.g., built with Electron) can also leverage the **Trezor Bridge** communication layer. Alternatively, low-level libraries exist in Python, C++, and other languages for native hardware interaction, offering maximum flexibility for **Trezor Developer Portal** users.