Official Site® | Trezor Suite®

Welcome to the Official Developer Portal

This Official Site® for Trezor Suite® is designed to help developers—from beginners to advanced engineers—get started with integrating and leveraging the power of Trezor hardware wallets in your applications. Our mission is to simplify cryptographic security, provide transparent APIs, and foster a collaborative environment that keeps user security front and center.

On this portal, you'll find structured documentation, clear code samples, interactive tutorials, and a technical reference of all methods and interfaces. Whether you're building a web wallet, exchange module, or a blockchain tool, this page serves as your launchpad.

Let’s walk through each stage: from setup and installation, through API usage, to advanced examples and community resources.

Prerequisites You’ll Need

Before diving into code, it’s essential to have your development environment ready. Below is a checklist to make sure everything works smoothly.

System Requirements

Node.js (latest LTS, v14 or higher is recommended)
npm or Yarn package manager
A physical Trezor device (Model T or Model One)
Latest firmware installed on your Trezor (via Trezor Suite → Settings → Firmware)
Familiarity with JavaScript, HTTP, WebUSB / WebHID, or WebSocket programming

Security & Environment Considerations

Always use HTTPS in production contexts
Use a secure host origin for the Trezor Connect script
Avoid placing sensitive keys in client‑side code
Be prepared for user interaction prompts (confirmations on device)

Once your environment is primed, you're ready to install the libraries and test connectivity.

Installation & Setup

Let’s install the tools and write a minimal sample to verify that your Trezor device is reachable via code.

Step 1: Create a new project

      mkdir trezor‑project && cd trezor‑project

      npm init -y

Step 2: Install the Trezor Connect library

npm install @trezor/connect

Step 3: Create a simple HTML + JS test file

      
        <!DOCTYPE html> 

        <html lang="en">

        <head>

          <meta charset="UTF-8">

          <meta name="viewport" content="width=device-width, initial-scale=1.0">

          <title>Trezor Test</title>

        </head>

        <body>

          <script type="module">

            import TrezorConnect from '@trezor/connect';

            TrezorConnect.init({

              connectSrc: 'https://connect.trezor.io/8/',

              popup: true,

            }).then(() => {

              return TrezorConnect.getPublicKey({ path: "m/44'/0'/0'/0/0" });

            }).then(response => {

              if (response.success) {

                console.log('Public Key:', response.payload.publicKey);

              } else {

                console.error('Error:', response.payload.error);

              }

            });

          </script>

        </body>

        </html>

This small snippet initializes the Trezor Connect library, opens a popup for user confirmation, and then reads a public key at the BIP‑44 example path. If successful, it logs the key; otherwise, displays an error.

Test this file using a simple HTTP server (e.g. `npx http‑server`) because some browser APIs require a server context rather than `file://`.

API Guide & Reference

The API reference is the core of this portal. Below is a curated summary of the most commonly used methods, their parameters, and return patterns. For full reference, see our dedicated pages.

Core API Methods

init(options) — initialize the library with options like connectSrc, popup, lazyLoad.
getPublicKey(params) — fetch a public key for a BIP32 path.
signTransaction(params) — sign transactions in supported coins (Bitcoin, Ethereum, etc.).
ethereumSignMessage(params) — sign arbitrary messages in Ethereum context.
applySettings(params) — change Trezor device settings (e.g. passphrase, language).
wipeDevice(), resetDevice() — reset or wipe device states.

Key Parameter Shapes

path (string) — BIP32 path, e.g. "m/44'/60'/0'/0/0"
coin (string) — coin symbol, e.g. "btc", "eth"
inputs / outputs — arrays describing transaction structure
message (string) — in signing message flows
u64, buffer — used in lower‑level or specialized calls

Response Format & Error Handling

In every method call, you’ll receive a consistent response structure:

      
        // Success 

        { success: true, payload: { /* method‑specific result */ } } 

        // Failure 

        { success: false, payload: { error: "Error description or code" } }

We maintain an error catalog that outlines common error codes such as ActionCancelled, Device_Not_Found, Transport_Error, and more. Use this catalog to map user‑friendly error messages in your UI.

Tutorials & Example Projects

Walkthroughs and sample projects help you grasp best practices. Below are a few tutorials you can try immediately.

Example 1: Simple Wallet Interface

Build a minimal frontend that allows a user to connect, view address, and sign transactions.

Initialize Trezor Connect in your React or Vue setup.
Prompt the user to connect their device.
Use getPublicKey() to display the address or public key.
Provide an interface (form) to input transaction details and call signTransaction().
Show transaction hex / serialized output for broadcasting.

Example 2: Ethereum Message Signing Flow

For an Ethereum-based dApp, you may ask users to sign messages instead of full transactions for login or consent flows.

      
        TrezorConnect.ethereumSignMessage({

          path: "m/44'/60'/0'/0/0",

          message: "Login nonce: 12345",

          hex: false

        }).then(response => {

          if (response.success) {

            console.log("Signature:", response.payload.signature);

          } else {

            console.error("Error:", response.payload.error);

          }

        });

Tips for Robust Implementation

Always wrap calls in error handlers; users may cancel or reject actions.
Show progress or spinner while waiting for device response.
Validate transaction inputs on UI side before asking for user confirmation.
Cache public keys or addresses if user reuses the same path to avoid repeated prompts.
Leverage dev tools or sandbox environments to safely test methods.

Community, Support & Contribution

The Official Site® Trezor Suite® Developer Portal is community-driven. We encourage feedback, contributions, and open collaboration.

How to Contribute

Fork the documentation or portal code on GitHub.
Submit pull requests with improvements, fixes, or new examples.
Report bugs or request features via issue tracker.
Help answer community questions on forums or chat platforms.
Share your integration stories and use cases, inspiring others.

Support Channels

GitHub Issues & Discussions
Official Forums / Trezor community boards
StackOverflow (tag: trezor-connect)
Developer Discord / Telegram / Slack channels
Newsletter, blog, and changelog notifications

By participating, you help refine the usability, security, and reach of the Trezor developer ecosystem.

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