Hyperliquid lets any app plug into its order book through builder codes and keep a fee on every trade. In the last 30 days 874 apps did it, and together they earned $10.7M, double what they made in June.

Four apps take 56% of that money. Trust Wallet leads with $1.65M after moving its fee from 0.001% to almost 0.1% over the summer. fomo, Phantom and MetaMask each made about $1.4-1.5M.

Volume and money are two different rankings. HyperDash routed $2.1B, more than MetaMask, but earned 3.6x less because it charges 0.018%.

"Builder codes allow builders to receive a fee on fills that they send on behalf of a user." Hyperliquid docs

Pump fun went live on Oct 16 with the same model. It's not on the board yet. We'll check back in a month.