Trezor Suite® – Developer Portal

Welcome to the Trezor Suite Developer Portal

The Trezor Suite® Developer Portal serves as the official resource for engineers and developers who want to integrate Trezor Suite functionality into their applications or services. Whether you're building a wallet, dApp, exchange, or hardware-compatible service, the Developer Portal provides documentation, tools, and SDKs to help you build securely with Trezor devices.

Created and maintained by SatoshiLabs, the makers of Trezor, the portal combines robust developer guidance with open-source resources to make security integration intuitive and transparent.

• Comprehensive API and SDK documentation
• Code samples and GitHub repositories
• Security best practices and signing standards
• Integration testing environments and debugging tools

Trezor Suite Architecture and Developer Access

Trezor Suite is built upon a modular and transparent open-source architecture. It consists of three core layers that developers can interact with:

1. Hardware Layer: Trezor devices (Model One, Model T) store private keys and handle secure signing.
2. Software Layer: The Trezor Suite app (desktop/web) manages the user interface, wallet logic, and blockchain communications.
3. API Layer: Developer-facing libraries such as Trezor Connect and Trezor.js provide a secure bridge between apps and hardware.

By separating private key handling from the host environment, Trezor Suite ensures that sensitive data never leaves the hardware device — maintaining full end-to-end protection for crypto transactions and account operations.

APIs, SDKs, and Developer Libraries

Trezor provides several open-source APIs and SDKs designed for secure and modular integration. These tools enable your application to communicate with a Trezor device or Suite environment directly.

1. Trezor Connect API

The Trezor Connect library is a JavaScript framework that allows web and desktop applications to interact with Trezor devices. It handles device discovery, user prompts, and transaction signing automatically.

npm install trezor-connect

Example integration snippet:

import TrezorConnect from 'trezor-connect';

TrezorConnect.getPublicKey({ path: "m/49'/0'/0'" })
  .then(result => {
    if (result.success) console.log(result.payload.xpub);
    else console.error(result.payload.error);
  });
  

2. Trezor.js and TypeScript SDK

For more complex integrations, developers can use the Trezor.js SDK. It offers granular control over communication and supports advanced wallet operations.

• Type-safe definitions for hardware communication
• Device event handling and message streaming
• Multi-platform compatibility (browser, Electron, Node.js)

3. REST and JSON-RPC Interfaces

While most integrations happen via JavaScript, the Suite’s open-source nature allows RESTful access and JSON-RPC support for developers building in Python, Go, or Rust. This enables custom services to interface with the Suite backend for data visualization or automation.

Security Principles for Developers

Trezor Suite’s entire design philosophy revolves around minimizing attack surfaces while maximizing transparency. Developers are encouraged to follow the same security-first approach when building integrations.

Key Security Guidelines:

• Never store or transmit private keys outside the hardware device.
• Use verified firmware and ensure firmware signatures are authentic.
• Implement origin whitelisting to restrict unauthorized API calls.
• Verify all user actions on the device display before finalizing transactions.
• Leverage open-source cryptographic libraries rather than proprietary encryption.

Following these guidelines guarantees end-users retain full ownership and protection over their assets, aligning your application with Trezor’s non-custodial security standards.

Integration Process

Integrating Trezor Suite into your own product involves three primary stages: configuration, device communication, and transaction signing.

Step 1: Configuration

Start by configuring your app’s manifest within Trezor Connect. This identifies your application to the Trezor device and ensures safe domain-based interactions.

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

Step 2: Device Communication

Once connected, use built-in API methods like getAddress() or signTransaction() to perform actions. The device will prompt the user for confirmation at every sensitive step.

Step 3: Transaction Signing

All signing happens internally within the Trezor hardware. Your application never sees the private key, ensuring full isolation and preventing leaks from software-level attacks.

Testing and Debugging Your Integration

Trezor Suite provides several development tools for testing integrations safely without using real funds or devices.

Emulator Environment

Use the Trezor Emulator to simulate device responses and UI interactions. This allows for automated testing and debugging during CI/CD workflows.

docker run --rm -it trezor/trezor-emulator

Staging Networks and Testnets

You can connect to Bitcoin Testnet or Ethereum Goerli via Suite to test transactions. These networks provide realistic behavior without real value transfers.

Logging and Diagnostics

Trezor Suite’s developer console provides rich logs, including API requests, event callbacks, and firmware status — all useful for debugging communication or signature issues.

Developer Community and Resources

Open collaboration is central to the Trezor ecosystem. Developers can contribute code, report issues, or suggest new features through public repositories and forums.

• Trezor GitHub — open-source codebases and SDKs
• Trezor Developer Forum — technical Q&A and discussions
• Security Guidelines — responsible disclosure and audits
• Developer Support Contact

The Trezor Suite Developer Portal is more than documentation — it’s a collaborative space where innovation meets transparency. By integrating with Trezor, you become part of a global initiative advancing open, secure digital ownership.

Conclusion

The Trezor Suite® Developer Portal equips developers with the knowledge, tools, and code examples needed to build trustworthy, secure crypto applications. Its modular SDKs, transparent architecture, and focus on privacy provide a rock-solid foundation for any blockchain integration.

By leveraging Trezor’s open-source ecosystem, you not only enhance your project’s reliability but also align it with the principles of self-custody and decentralization that define the cryptocurrency movement.

Explore more at suite.trezor.io/developer and begin integrating your next secure crypto project today.