Linked Signer

By default, every order placed through Nado requires a wallet popup for signature confirmation. The linked signer mechanism removes this by deriving a session key that can sign orders on your behalf within the browser.

Setup process

1. Navigate to the Account page and ensure your wallet is connected on the correct network.

2. A deposit must exist on the Nado engine for your address. If the engine returns error 2024, you need to deposit first through the official Nado app.

3. Click Set up linked signer. You will sign twice: once to derive the session key, and once to register it on the Nado engine.

4. After completion, the key is stored in localStorage for the current wallet and chain combination.

Security model

The session key is scoped to the browser and chain pair. It does not leave the device. Clearing browser data or using Forget local key removes it. If the engine has a different linked signer registered, for example from another browser, you will see a mismatch warning on the Account page.

The linked signer does not give THORNado custody over your funds. It delegates order-signing capability only. Withdrawals and deposits still require your primary wallet signature.