Trezor Suite Developer Portal | Start Your Journey

Welcome — if you're reading this, you're likely considering integrating hardware-backed security into your application, or you're curious how Trezor Suite makes secure crypto flows approachable for developers. This post walks you through the essential steps: environment setup, key developer concepts, sample flows, security checkpoints, and where to find authoritative docs and SDKs.

Why build with Trezor Suite?

Hardware wallets are the strongest practical way to hold private keys offline. Trezor Suite wraps hardware device interaction, account management, and UIs into an approachable ecosystem for both desktop and web developers. With the right integration, your app can offer users transaction signing, public-key verification, and account discovery — all while keeping private keys secure on the device.

Core benefits

Security-first design

Trezor products prioritize an auditable security posture and user-confirmed signing flows. Integrating with Trezor means relying on a verified path for transaction approval that the user controls.

Cross-platform support

Trezor Suite supports desktop apps and browser flows — and Trezor Connect provides SDKs for common platforms. Whether you ship a web dApp or a native desktop product, there’s a recommended path to integrate.

Getting started — the checklist

Follow this short checklist to move from zero to a working integration:

Install Trezor Suite (desktop or web) and confirm you can access device features via the Suite UI.
Read the documentation for Suite and Trezor Connect to understand available APIs and security model.
Run sample apps or examples (GitHub) to see Connect flows in action.
Set up a dev environment with HTTPS (web) or a local desktop build; modern browsers require secure contexts for hardware interactions.
Audit UX flows so users always confirm sensitive actions on-device.

Pro tip: Start with a read-only integration that retrieves public keys and displays addresses first. This reduces risk while you confirm the user flows and device compatibility.

Key developer concepts

Trezor Connect

Trezor Connect is the recommended JavaScript interface for web integrations: popup flows, device detection, and signing APIs. Familiarize yourself with the connect explorer and the “new Connect flow” notes to ensure you implement the current, secure UX patterns.

Account discovery & derivation

Account discovery typically uses BIP32/BIP44/BIP84 paths. Your app should present derivation path choices clearly and make it easy for users to confirm which keys are exposed for each account.

Firmware & compatibility

Trezor hardware receives firmware updates; ensure your integration checks for compatibility and informs users if their device firmware is too old or requires an update before critical actions.

Sample web flow (high-level)

Below is a concise outline illustrating a typical web integration with Trezor Connect:

/* pseudo-flow */
1. Load Trezor Connect library in a secure context (HTTPS).
2. Call TrezorConnect.getFeatures() to detect device and capabilities.
3. Use TrezorConnect.ethereumGetAddress / bitcoinGetAddress to display addresses.
4. Build a transaction object client-side; present details to the user for review.
5. Call TrezorConnect.signTransaction(...).
6. Submit the signed transaction to your backend or directly to the network.

Example UX checkpoints

Always show the destination and amount in plain language before signing.
Warn when sending to unknown or high-risk contracts.
Log device session results for debugging but never persist private keys or raw signing secrets server-side.

Security best practices

Backend responsibilities

Keep backends stateless regarding private keys. Use hardware devices solely for signing and store only audit-friendly metadata. Rate limit sensitive endpoints, and always validate transactions on the server side before broadcast.

Client-side protection

Employ Content Security Policy (CSP), Subresource Integrity (SRI) for remote assets you must load, and serve all assets over HTTPS. Avoid running untrusted third-party scripts on pages that interact with hardware wallets.

Testing and QA

Test with multiple Trezor models and firmware versions. Automate device detection tests where possible, and include a manual QA pass for UX that requires real device confirmation.

Resources & where to learn more

The best single starting place is the official Trezor Suite docs and the Connect pages. The nav at the top of this article links to the primary resources (Suite docs, Connect, downloads, guides, GitHub releases and official store pages). Use the docs for API reference, the GitHub releases for binaries and change logs, and the partner/dev portals for integration patterns.

Official links (quick reference)

Final checklist before shipping

Compliance checks

Ensure your product complies with any regional regulations (KYC/AML if you surface exchange/buy features), and that you clearly state the security guarantees and user responsibilities in your docs and UI.

Documentation & onboarding

Provide a short “Getting started” tutorial inside your app for first-time Trezor users: connect device, confirm app permissions, view addresses, and perform a sample signing. Good onboarding reduces support requests and improves conversion.

Support & maintenance

Track the Trezor release notes and docs (linked above) for breaking changes, and have a plan to update integration code when important Connect or firmware changes are announced.