Create and authorize an agent wallet on Hyperliquid, then generate your API credentials. Add these credentials in Sandwich, sign the builder code to authorize access, and save once the connection is verified.
No. Signing = proof of identity (safe, no gas). Approving a contract = giving permission to spend tokens (not used for login).
Sometimes, yes. For security reasons, Hyperliquid may ask for a new signature when you reconnect or after a session timeout.
If you reject it, you simply won’t be able to log in or perform certain actions. No harm is done.
No. Message signing cannot move assets. Only approve or send transactions can move funds, and Hyperliquid does not ask for that during the sign-in process.
Try these fixes: disconnect and reconnect your soft wallet, clear your browser cache, ensure the wallet extension is updated, and switch networks back and forth. If the problem persists, restart your browser.
Yes. If your Ledger or Trezor is connected through a supported wallet application, you can sign authentication messages using that device.
Signing is more secure. It proves ownership of your wallet cryptographically, eliminating weak passwords and phishing risks.
No. Your private key remains inside your soft wallet. Hyperliquid only receives the signed message, not the key itself.
This is normal—the soft wallet is asking you to confirm the login/auth request. Just check the message contents and click Sign if everything looks correct.
Make sure your wallet is set to the correct network. Then refresh the page, reconnect, and ensure your browser isn’t blocking any pop-ups.
Yes. Message signing only verifies ownership.You are not granting spending permissions or approving smart contracts.
You are signing a human-readable message that proves wallet ownership. Hyperliquid does not ask you to sign anything that gives permission to move funds.
Your wallet prompts you to sign so Hyperliquid can confirm that you are the owner of the wallet. This prevents unauthorized access and protects your account.
No. The signing process is completely gas-free. You are only signing a message, not submitting a blockchain transaction.
Signing our builder code allows for all application fees to be replaced by the builder fees on all Hyperliquid trades. Hyperliquid requires your approval to do this.