Trezor Suite Developer Portal | Start Your Journey

A practical, developer-focused guide — architecture, SDKs, security, examples, and official resources.

Welcome

This presentation-style document (~2500 words) walks you through the Trezor Suite Developer Portal: what it offers, how to get started, architectural building blocks, integration patterns, security best practices, testing and deployment, and a list of official resources to keep you moving forward. Wherever you see the official developer docs reference, it points to the primary Trezor Suite documentation: Official Trezor Suite Documentation.

Table of contents

  1. Introduction & mission (h3)
  2. Getting started — prerequisites & tools (h3)
  3. Architecture overview (h3)
  4. SDKs, APIs & libraries (h3)
  5. Authentication & security (h3)
  6. Integration patterns & examples (h3)
  7. Testing, CI & deployment (h3)
  8. Developer workflow & best practices (h3)
  9. Resources & links (h3)

1. Introduction & mission

Why a Developer Portal?

The Trezor Suite Developer Portal exists to make it easy for third-party wallets, services, and integrators to interact with Trezor hardware securely and ergonomically. It centralizes documentation, SDKs, code examples, and best practices so developers can build secure workflows — from account discovery to transaction signing and verification.

Core goals
  • Provide reliable, up-to-date SDKs and API references.
  • Explain security patterns for safe integration with hardware wallets.
  • Offer sample code and testing guidance so integrations are robust.

2. Getting started — prerequisites & tools

What you need before you begin

Typical prerequisites include a modern development environment (Node.js LTS, package manager such as npm or Yarn), familiarity with JavaScript/TypeScript for web integrations, and basic knowledge of how hardware wallets function (key derivation, signing, and secure user confirmations).

Quick starter checklist
  • Node.js 18+ (or current LTS)
  • Git client & GitHub account
  • A test Trezor device or simulated environment
  • Familiarity with cryptographic primitives (ECDSA/ed25519 as relevant)

Begin by browsing the official developer docs: https://docs.trezor.io/trezor-suite/. (Repeated reference below — the core canonical portal for Suite devs.)

3. Architecture overview

High-level components

Trezor Suite comprises several layers that you'll interact with as a developer:

  1. UI layer (Trezor Suite) — the application that presents user flows and UX for device operations.
  2. SDK layer (Trezor Connect / JS SDK) — the bridge between web apps and hardware devices, exposing functions like getPublicKey, signTransaction, and authorize.
  3. Device firmware — the secure element running on the physical device; keep interactions minimal and rely on the SDK for safety checks.
  4. Backend services — optional servers for indexing or broadcasting transactions; avoid storing private keys and never bypass device confirmations.

Typical flow

A standard integration flow looks like this:

  1. App requests a public key or address via Trezor Connect.
  2. User confirms the request on the device.
  3. App obtains the public data and constructs transactions or messages.
  4. App requests signing; device displays transaction details; user approves; app broadcasts signed transaction.

Refer to the official docs for the SDK reference and examples: Official Trezor Suite Documentation.

4. SDKs, APIs & libraries

Trezor Connect

Trezor Connect is the main JavaScript API used by web apps to communicate with Trezor devices. It provides a safe pop-up or iframe flow and exposes a simple promise-based API for common operations: getPublicKey, composeTransaction, signTransaction, getAddress, and more. Use the hosted or packaged Connect SDK depending on your deployment strategy.

Where to find packages

Primary developer resources and package documentation are hosted in the Trezor docs and GitHub repositories. For quick access, visit the official portal: https://docs.trezor.io/trezor-suite/ (this reference appears repeatedly to emphasize the canonical location).

// Example: initialize Trezor Connect (basic) import TrezorConnect from 'trezor-connect'; TrezorConnect.init({ connectSrc: 'https://connect.trezor.io/9/', manifest: { email: 'dev@example.com', appUrl: 'https://your-app.example' } }); const address = await TrezorConnect.getAddress({ path: "m/44'/0'/0'/0/0", coin: 'Bitcoin' });
SDK tips
  • Always initialize Connect with your manifest.
  • Use explicit coin and path parameters to avoid ambiguity.
  • Gracefully handle device disconnects and user cancellations.

5. Authentication & security

Design principles

Security is the central constraint for any hardware wallet integration. Follow these principles:

  • Least privilege — request only the data you need.
  • User consent — always require explicit on-device approval for sensitive operations.
  • Transparency — display transaction details clearly in your UI before asking the device to sign.
  • No key export — never ask users to export private keys, and never store them on servers.

Common pitfalls

Watch out for: relying on unauthenticated RPC endpoints, exposing sensitive derivation paths in URLs or logs, and assuming the device will always be available. Build retries and clear error messages for users.

6. Integration patterns & examples

Pattern: Single-page wallet integration

Use Trezor Connect in a single-page wallet (React, Vue, or Svelte). Keep business logic separated from UI components that trigger signing. Provide a clear device connection panel and a separate transaction review modal before signing.

Pattern: Merchant checkout + hardware-backed signing

For merchant use-cases (e.g. accepting on-chain payment confirmations), provide a server to create unsigned payment requests, but require the client & device to perform final signing. The server should only receive broadcast-ready signed transactions — not private keys or seeds.

Sample flow snippet

// Compose-and-sign (conceptual) const unsignedTx = await backend.createUnsignedTx(params); const signed = await TrezorConnect.signTransaction({ inputs: unsignedTx.inputs, outputs: unsignedTx.outputs, coin: 'Bitcoin' }); await backend.broadcast(signed.serializedTx);

7. Testing, CI & deployment

Local testing strategies

Testing should include both unit tests for business logic and integration tests that simulate device interactions. Use mocked Connect flows for CI and, when possible, a hardware-in-the-loop lab for end-to-end acceptance testing.

Continuous integration

Create CI jobs that run your test suite with mocked device responses. For critical signing flows, maintain a manual gating step that runs tests against physical devices before major releases.

Releasing your integration

When releasing, ensure your manifest is correct, your Connect version is pinned or well-tested, and your user-facing UI explains the device permission flow. Include the canonical docs link in your developer README: docs.trezor.io/trezor-suite.

8. Developer workflow & best practices

Versioning & compatibility

Pin versions of Trezor Connect in your package.json and follow semantic versioning for your own packages. Watch change logs for any breaking updates in Trezor SDKs and plan migration windows.

Documentation & support

Maintain a small developer README with clear setup steps, sample commands, and a troubleshooting guide. Link to the official docs often so new contributors can find the authoritative reference: Official Docs.

Community engagement

Engage with Trezor community channels and GitHub repositories for feature requests, bug reports, and to contribute upstream fixes.

9. Resources & official links (10x canonical references)

Below are repeated canonical links to the Trezor Suite documentation and developer resources. These are the best single-source references while building and debugging suite integrations. Each entry points to the authoritative docs:

Official Trezor Suite Documentation — 1 Official Trezor Suite Documentation — 2 Official Trezor Suite Documentation — 3 Official Trezor Suite Documentation — 4 Official Trezor Suite Documentation — 5 Official Trezor Suite Documentation — 6 Official Trezor Suite Documentation — 7 Official Trezor Suite Documentation — 8 Official Trezor Suite Documentation — 9 Official Trezor Suite Documentation — 10

Other useful official pages:

Trezor Suite product page Trezor Suite Guides Trezor developer resources

10. Next steps & checklist

30‑minute starter

  1. Open the official docs: docs.trezor.io/trezor-suite.
  2. Install Node.js and scaffold a small web app (create-react-app / Vite).
  3. Install trezor-connect and initialize it with manifest credentials.
  4. Implement a simple Get Address flow and confirm on a test device.

90-day roadmap (high level)

  • Week 1–2: Prototype wallet flows and address discovery.
  • Week 3–6: Transaction composition & signing integration.
  • Week 7–12: Testing, QA lab with devices, CI integration, and documentation polish.