EASYTRADING.PW

HyperLiquid Builder Fee Approval

The EasyTrading SDK attaches a 0.005% builder fee to orders it places on HyperLiquid — 20× below HyperLiquid's 0.1% cap — to fund continued development. HyperLiquid requires your one-time, gasless signature before any builder fee can ever be charged: no approval, no fee.

If you trade with an agent/API wallet (recommended), the SDK cannot sign this approval for you — do it here once with your master wallet. The SDK detects it automatically: on the next order, or within 30 minutes if it recently cached a failed approval check (restarting the bot applies it immediately).

1 · Connect & check

2 · Approve (one gasless signature)

This is a standard EIP-712 typed-data signature: it costs no gas, moves no funds, and grants no access to your wallet. It only authorizes the builder address 0xc6B9AC3E4Be8911e00B649BE96d02317Dd61ff89 to receive up to 0.005% on orders you place. Revoke any time at app.hyperliquid.xyz/builderCodes.

FAQ

What exactly am I signing?

A HyperLiquid approveBuilderFee action (primary type HyperliquidTransaction:ApproveBuilderFee) with maxFeeRate = 0.005%. Your wallet shows the full payload before you sign. It is not a transaction and cannot touch funds.

Why does the SDK need this page at all?

HyperLiquid only accepts builder-fee approvals signed by your master wallet. If you configured EasyTrading with an agent/API key (best practice), the SDK can't produce that signature — so it trades without the fee and logs a pointer here. Alternatively, set HyperLiquidCredentials.MasterPrivateKey once and the SDK approves programmatically.

How do I opt out instead?

Set HyperLiquidClientOptions.BuilderFee with FeeRate: 0m — the SDK then sends orders without any builder field and never requests approval. (Setting your own builder address with a positive rate routes the fee to your address instead.) Note: if the SDK is configured with your master private key it auto-approves on the first order, so with a master-key setup the zero-rate option is the reliable opt-out; merely not signing here only prevents the fee for agent-wallet setups.