Trezor Suite Developer Portal | Start Your Journey

Trusted, secure, and open — this guide helps developers integrate with Trezor Suite, understand security best-practices, and begin building while maintaining user trust.

Why "Trust" matters for Trezor integrations (h2)

Trust is the foundation of every secure wallet ecosystem. Trezor's design philosophy centers on minimizing implicit trust: private keys are generated and stored on-device, open-source software enables public verification, and security practices are documented for community review. As a developer building on or integrating with Trezor Suite, your responsibility is to preserve and enhance trust through transparent interfaces, careful UX choices, and robust handling of user keys and signatures.

Developer Quickstart — Start your journey (h3)

Follow these simple steps to get started quickly:

  1. Explore official docs: Read the Suite docs and API references to understand available endpoints and connection flows.
  2. Use test devices or emulators: Test against simulated or disposable hardware and never ship integration code that was only validated against a production seed.
  3. Implement clear UX: Make device prompts explicit; never hide important security choices behind complex UI interactions.
  4. Audit and log carefully: Keep developer logs for debugging but avoid storing or transmitting sensitive info such as seed phrases or private keys.

Example flow: connecting a web app to Trezor Suite (h4)

Typical flow — user clicks “Connect hardware wallet” → app triggers Trezor Connect or Suite handshake → device prompts user to confirm the action → signed transaction is returned to the app. Make sure the action requested is displayed verbatim on the device and in your UI so users verify the same content.

Small checklist (h5)
  • Use the official libraries to reduce errors and mismatches.
  • Show transaction details in plain language.
  • Offer recovery & guidance links in your UI.
  • Provide clear error messages, not cryptic codes.

Security guidance for developers (h3)

Security expectations for a Trezor-integrated product are high. The device secures keys; your software must respect that boundary. Key rules:

  • Do not ask users for seeds or private keys. If you must support recovery, use only Trezor-sanctioned flows.
  • Keep third-party dependencies minimal and well-audited.
  • Sign all release artifacts and publish checksums so users can verify downloads.

Testing & audits (h4)

Automated tests should include device-emulation scenarios, CI that runs static analysis, and periodic third-party audits for any components that handle or display sensitive information. When you rely on open-source packages, track versions and vulnerability advisories.

Integration patterns & opportunities (h3)

Trezor supports several integration patterns:

  • Wallet connectors: Use Trezor Connect or Suite APIs that handle handshake and signing flows.
  • Portfolio & analytics: Read-only APIs and public on-chain data present ways to integrate portfolio tools without touching private keys.
  • Swaps & DeFi integrations: Coordinate between your backend and Suite for non-custodial swap flows while keeping the keys with the device.

Developer experience (h4)

Good DX emphasizes interactive examples, code sandboxes, versioned docs, and clear changelogs. Provide sample projects that show sign-in, transaction signing, and user recovery flows in a simple, copy-pasteable way.

UX, Trust & Accessibility (h3)

UX directly affects trust. Make your permission requests explicit, avoid jargon, and ensure accessibility:

  • Readable font sizes and clear contrast ratios.
  • Keyboard and screen-reader friendly flows for device prompts and confirmations.
  • Localizable strings so messages are clear in the user's language.

Handling errors (h4)

When errors occur, tell the user what happened, why it happened (when safe), and how to recover. Link to official support articles rather than creating your own low-quality help pages.

Community & contributions (h3)

Contribute upstream when you fix problems or add features. Trezor is open-source; upstream contributions improve the entire ecosystem and signal transparency to end users. Write tests and documentation for any contributions you submit.

Takeaway — preserve the chain of trust (h2)

The simplest rule is: keep private keys private, keep users informed. If your app displays or asks for anything that could be used to reconstruct a key, rethink the approach. Use official libraries and docs, replicate device prompts exactly, and prioritize auditability.

Built for developers who want secure, trustworthy integrations — Start small, test thoroughly, and contribute back.