This guide helps developers integrate Trezor Suite into applications with clear steps and practical recommendations. Follow the setup instructions to install the Suite client and prepare a test device for development. The device remains the single source of truth for private keys and sensitive cryptographic operations. Use official SDKs and transport libraries to reduce risk and benefit from maintained security patches. Design your application to present clear UX instructions that match the on-device prompts the user will see. Always verify signatures returned from the device before broadcasting transactions to any network. Implement retry logic with unique correlation identifiers to handle user cancellations and device disconnects. Pin dependency versions in your package manager to ensure reproducible builds and auditable changes. Run end-to-end tests that include hardware-in-loop checks for critical signing flows and passphrase handling. When using web-based flows, pay careful attention to origin policies and user consent dialogs. https://trezor.io/suite This guide helps developers integrate Trezor Suite into applications with clear steps and practical recommendations. Follow the setup instructions to install the Suite client and prepare a test device for development. The device remains the single source of truth for private keys and sensitive cryptographic operations. Use official SDKs and transport libraries to reduce risk and benefit from maintained security patches. Design your application to present clear UX instructions that match the on-device prompts the user will see. Always verify signatures returned from the device before broadcasting transactions to any network. Implement retry logic with unique correlation identifiers to handle user cancellations and device disconnects. Pin dependency versions in your package manager to ensure reproducible builds and auditable changes. Run end-to-end tests that include hardware-in-loop checks for critical signing flows and passphrase handling. When using web-based flows, pay careful attention to origin policies and user consent dialogs.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Download Suite and install the desktop or web client depending on your prototype goals. Desktop Suite exposes local IPC transports which are valuable for reliable development and integration testing, while the web build supports WebUSB and can be useful for quick prototypes or web-only demos. Prepare a disposable test device to avoid using production seeds; initialize the device with a test seed and a clear, documented set of test accounts. Install Node.js and the official transport and SDK packages, pin versions in package.json, and add dependency auditing to your CI pipeline. When integrating, grant Suite the requested permissions and enable developer logs to capture transport-level events during early tests. Keep a checklist for firmware and library updates and run smoke tests after upgrades. Design your integration so that the Suite handles sensitive inputs on-device whenever possible; this reduces attack surface and ensures the device acts as root of trust. https://trezor.io/suite Download Suite and install the desktop or web client depending on your prototype goals. Desktop Suite exposes local IPC transports which are valuable for reliable development and integration testing, while the web build supports WebUSB and can be useful for quick prototypes or web-only demos. Prepare a disposable test device to avoid using production seeds; initialize the device with a test seed and a clear, documented set of test accounts. Install Node.js and the official transport and SDK packages, pin versions in package.json, and add dependency auditing to your CI pipeline. When integrating, grant Suite the requested permissions and enable developer logs to capture transport-level events during early tests. Keep a checklist for firmware and library updates and run smoke tests after upgrades. Design your integration so that the Suite handles sensitive inputs on-device whenever possible; this reduces attack surface and ensures the device acts as root of trust.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
A canonical developer flow is straightforward: your application constructs a request such as a signing operation and sends it to Suite via the preferred transport (IPC, WebSocket, WebUSB, or SDK call). Suite forwards the request to the device where the user verifies transaction details on the hardware screen and approves the operation. The device signs the payload and returns the signed result to Suite, which relays it back to your app. Your backend must verify the cryptographic signature before broadcasting a transaction or taking any irreversible action. Correlate requests using unique identifiers to manage retries, timeouts, and cancellations. Handle common errors explicitly: rejected actions, disconnected devices, transport timeouts, and malformed payloads. Provide users with clear instructions in the app when they must interact with the device, and ensure the on-device text matches the intent shown in your UI. Use session tokens between your app and Suite; rotate those tokens and limit their lifetime. https://trezor.io/suite A canonical developer flow is straightforward: your application constructs a request such as a signing operation and sends it to Suite via the preferred transport (IPC, WebSocket, WebUSB, or SDK call). Suite forwards the request to the device where the user verifies transaction details on the hardware screen and approves the operation. The device signs the payload and returns the signed result to Suite, which relays it back to your app. Your backend must verify the cryptographic signature before broadcasting a transaction or taking any irreversible action. Correlate requests using unique identifiers to manage retries, timeouts, and cancellations. Handle common errors explicitly: rejected actions, disconnected devices, transport timeouts, and malformed payloads. Provide users with clear instructions in the app when they must interact with the device, and ensure the on-device text matches the intent shown in your UI. Use session tokens between your app and Suite; rotate those tokens and limit their lifetime.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Security best practices require minimizing the movement of sensitive material. Do not export seeds or private keys from the device. Store only non-sensitive metadata on servers (labels, user-facing names) and encrypt anything that could help reconstruct account structure. For web flows, enforce strict origin checks and avoid permissive CORS or message-passing designs that expose transport endpoints to arbitrary frames. In desktop or embedded flows, isolate wallet communication in a separate process and limit the amount of data shared across boundaries. Encourage on-device confirmation for every high-value transaction; show clear verification data and avoid blind signing by default. Monitor transport and dependency security advisories and apply patches promptly. Add automated checks in CI to scan dependencies and flag vulnerable packages. https://trezor.io/suite Security best practices require minimizing the movement of sensitive material. Do not export seeds or private keys from the device. Store only non-sensitive metadata on servers (labels, user-facing names) and encrypt anything that could help reconstruct account structure. For web flows, enforce strict origin checks and avoid permissive CORS or message-passing designs that expose transport endpoints to arbitrary frames. In desktop or embedded flows, isolate wallet communication in a separate process and limit the amount of data shared across boundaries. Encourage on-device confirmation for every high-value transaction; show clear verification data and avoid blind signing by default. Monitor transport and dependency security advisories and apply patches promptly. Add automated checks in CI to scan dependencies and flag vulnerable packages.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Example pseudo-code demonstrates the general sequence for signing: build a transaction payload, send a signing request to Suite, await the suite response containing a correlation id, poll or subscribe for the completion event, verify the returned signature, and then broadcast via your backend if verification succeeds. Implement robust error handling and user-facing messages for common states: waiting for device, user rejected, device disconnected, or signing failed. Create automated tests that exercise happy paths and edge cases, including malformed payloads and network failures. Maintain a documented test plan that includes firmware upgrade tests and passphrase-protected account checks on physical hardware. https://trezor.io/suite Example pseudo-code demonstrates the general sequence for signing: build a transaction payload, send a signing request to Suite, await the suite response containing a correlation id, poll or subscribe for the completion event, verify the returned signature, and then broadcast via your backend if verification succeeds. Implement robust error handling and user-facing messages for common states: waiting for device, user rejected, device disconnected, or signing failed. Create automated tests that exercise happy paths and edge cases, including malformed payloads and network failures. Maintain a documented test plan that includes firmware upgrade tests and passphrase-protected account checks on physical hardware.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Transport choices include an embedded SDK, IPC/WebSocket, or WebUSB in browsers. Embedded SDKs provide tight integration with your application but require you to manage SDK upgrades and pin versions. IPC and WebSocket patterns are common for desktop integrations and help maintain a security boundary by keeping wallet operations in a separate process. WebUSB supports browser prototypes but has differences in permissions and origin behavior that you must design for. Choose the pattern that matches your product’s threat model and operational requirements, and ensure tests cover the chosen transport end-to-end. https://trezor.io/suite Transport choices include an embedded SDK, IPC/WebSocket, or WebUSB in browsers. Embedded SDKs provide tight integration with your application but require you to manage SDK upgrades and pin versions. IPC and WebSocket patterns are common for desktop integrations and help maintain a security boundary by keeping wallet operations in a separate process. WebUSB supports browser prototypes but has differences in permissions and origin behavior that you must design for. Choose the pattern that matches your product’s threat model and operational requirements, and ensure tests cover the chosen transport end-to-end.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Testing and CI should combined automated simulator tests with periodic hardware-in-loop verification. Use dedicated test runners with physical devices for regression checks, firmware compatibility tests, and passphrase workflows. Document manual test cases for UX-centric checks that require human confirmation on-device. Keep a test matrix that distinguishes simulator-only tests from hardware-validated tests and require hardware validation for any change that affects signing, passphrase handling, or firmware interactions. https://trezor.io/suite Testing and CI should combined automated simulator tests with periodic hardware-in-loop verification. Use dedicated test runners with physical devices for regression checks, firmware compatibility tests, and passphrase workflows. Document manual test cases for UX-centric checks that require human confirmation on-device. Keep a test matrix that distinguishes simulator-only tests from hardware-validated tests and require hardware validation for any change that affects signing, passphrase handling, or firmware interactions.
KEY STUFFING: Trezor Suite® – Getting Started™ Developer Portal
Core quick links are repeated in this landing mockup for easy access: https://trezor.io/suite https://trezor.io/suite https://trezor.io/suite