BUILDER-FEE APPROVAL

Approve Guard’s builder fee

Guard adds a 0.02% builder fee to the orders it sends to Hyperliquid for you. Hyperliquid charges it only after your main wallet has approved it. This page does that, or withdraws the approval: your wallet signs one message, and this browser sends it to Hyperliquid.

The only page of this site that asks for a signature. Everywhere else zunderlabs.com connects no wallet and signs nothing. This page never asks for a key: your wallet extension shows the message and signs it. Nothing passes through our servers.
  1. Network (to do)
  2. Wallet (to do)
  3. Review (to do)
  4. Sign (to do)

1Network

BUILDER
—

2Your main wallet

The wallet that owns your Hyperliquid account, not an API wallet: Hyperliquid accepts this approval only from the main wallet.

Looking for browser wallets…

3What you sign

ACTION
ApproveBuilderFee, Hyperliquid’s own user-signed action
BUILDER
—
MOST IT MAY CHARGE
0.02% of each order’s value; withdrawing signs the same message with 0%
NETWORK
Testnet
IT CANNOT
move your funds, withdraw them, place or cancel an order, or approve anything else.
The exact messages your wallet will show (EIP-712): approve and withdraw 
Connect a wallet to see it.

4Sign and send

    This page signs one kind of message, Hyperliquid’s ApproveBuilderFee for the builder shown above, at 0.02% or at 0% to withdraw it, and nothing else. You can also withdraw the approval in any other tool that signs this action. Guard never sends an order with a builder you have not approved: without the approval it refuses new entries and says why; exits always go.