Module builder_fee 

Builder fee approval and revocation for Hyperliquid.

Hyperliquid rejects orders that carry a builder address from a wallet that has never approved a builder fee, even when the order fee is zero. This module signs the one-time EIP-712 ApproveBuilderFee action at a 0% max fee rate, enabling the zero-fee Nautilus builder attribution without ever charging a fee.

Revocation signs the same action at the same 0% rate: it caps any previously approved builder fee at zero (for example, an approval from a version that charged builder fees).

The action must be signed by the master wallet’s private key; agent (API) wallets cannot sign ApproveBuilderFee.

Structs

BuilderFeeApprovalResult

Result of a builder fee approval request.

Functions

approve_builder_fee

Approves the Nautilus builder fee for a wallet.

approve_from_env

Approves the Nautilus builder fee using environment variables.

revoke_builder_fee

Revokes the Nautilus builder fee approval for a wallet.

revoke_from_env

Revokes the Nautilus builder fee using environment variables.