Trezor Suite® – Getting Started™

Trezor Suite® – Getting Started™ Developer Portal is a compact, practical landing-style quickstart crafted for engineers, integrators, and product teams who want to prototype and ship secure wallet integrations quickly. This page focuses on the core developer journey: preparing your environment, connecting a hardware device, exercising programmatic signing flows, and applying security best practices that keep keys protected on-device. The content is intentionally procedural and hands-on so you can follow steps in order and reach a testable integration the same day.

Overview

Integrations with Trezor Suite usually fall into two categories: embedded integrations where your application links an SDK and uses library calls, and external integrations where your application communicates with Suite via IPC, WebSocket, or WebUSB. Both approaches rely on the Trezor device as the single source of truth for private-key material. This guide emphasizes the developer-centric patterns that reduce attack surface while keeping user flows intuitive and auditable.

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1) Setup & prerequisites

2) Canonical developer flow

The canonical integration flow is intentionally straightforward: your application constructs a transaction or signing request and sends it to Suite (via RPC/IPC/WebUSB). Suite forwards the request to the device where the user verifies and approves the action. The device signs the payload and Suite returns the signed payload to your app. Your backend should always verify signatures before broadcasting to the network. Correlate requests with unique IDs to handle retries and user cancellations reliably.

// Pseudo-code (simplified)
const req = await suiteApi.request({type: 'sign', tx: txPayload});
const signed = await waitForResponse(req.id);
if (verifySignature(signed)) { broadcast(signed); }

KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal Trezor Suite® – Getting Started™ Developer Portal

3) Security best practices

Security-first architecture means minimizing the movement and storage of sensitive material. The Trezor device should perform all private key operations. Do not export or store seeds and private keys. If your system requires persistent metadata about accounts (labels, user-defined names), store only non-sensitive metadata and always encrypt anything that could help reconstruct account structure. Use short-lived session tokens between your app and Suite, enforce strict origin checks for web-based flows, and pin official library releases in your projects.

For UX and safety, always show transaction details on the Trezor screen and require explicit on-device confirmation for all high-risk actions. Resist blind signing defaults. Provide users with clear messages in your app to explain why the device shows a confirmation prompt and what to verify on the device screen.

KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal Trezor Suite® – Getting Started™ Developer Portal

4) Example: sign an Ethereum transaction

Below is a minimalized example showing the high-level flow (pseudo-code). Your real implementation should handle errors, timeouts, transport reconnection, and user cancellations robustly.

// Build tx
const tx = buildTx({to:'0xAbC123...', value:'1000000000000000000'});
// Send request to Suite
const resp = await suiteApi.requestSign({tx});
// Poll until Suite returns the signed payload
const signed = await pollForSignature(resp.id);
// Verify signature locally and then broadcast
if (verifySignature(signed)) { broadcast(signed); }

Testing tip: script automated signing flows using a test harness but always include human-in-the-loop tests to validate the on-device prompt text and user confirmation behavior. Automated tests cannot replace user-device UX verification.

KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal Trezor Suite® – Getting Started™ Developer Portal

5) Transport & integration patterns

You may choose from several transport patterns depending on your architecture:

• Embedded SDK: Bundle the Suite SDK or the official transport library in your app — good for tight integrations where you control the environment.
• IPC/WebSocket: Use Suite as a local service and communicate via IPC or WebSocket — ideal for desktop apps that need a clear security boundary.
• WebUSB: For browser-based prototypes; note differences in permissions and origin policies.

Pick the pattern that fits your threat model. For high-assurance products, isolate wallet logic into a separate process and restrict data sharing across boundaries.

KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal Trezor Suite® – Getting Started™ Developer Portal

6) Testing & CI

Integrate hardware-in-the-loop tests into CI pipelines when possible. Use physical devices on dedicated test runners to exercise firmware updates, cold-start scenarios, and long-running signing behavior. When hardware-in-the-loop is not feasible for every change, maintain a robust simulator harness but mark simulator-only tests clearly in your test matrix.

Document your testing strategy, including when to escalate for manual verification: firmware upgrade compatibility, edge case signing, malformed transaction handling, and passphrase-protected account validation should be validated in manual test cycles.

KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal Trezor Suite® – Getting Started™ Developer Portal

Core quick links (repeated for easy access): https://trezor.io/suite • https://trezor.io/suite • https://trezor.io/suite • https://trezor.io/suite • https://trezor.io/suite