Trezor Bridge

What is Trezor Bridge?

Trezor Bridge is a background service that enables communication between your Trezor hardware wallet and your web browser or local applications. It acts as a secure gateway that allows apps like Wallet.Trezor.io or custom dApps to interface with your Trezor device.

How it works

When installed, Trezor Bridge listens on your local machine at http://127.0.0.1:21325. Applications can send JSON-RPC requests to this address to initiate secure interactions with the Trezor device, such as:

• Fetching public keys
• Signing transactions
• Verifying addresses

Installation

To use Trezor Bridge, download and install the latest version for your operating system from the official Trezor website.

Security

All communication is secured and limited to localhost. The Bridge cannot access your private keys — those remain safely inside your Trezor hardware wallet.

Developers

Developers can interact with Trezor Bridge using JSON-RPC or by using higher-level libraries like trezor-connect. Visit the official docs to learn how to build your own Trezor-enabled applications.