How fees work
Simple tiered transaction fees that get cheaper as your trading volume grows.
Engine's fee system is simple: a small, transparent transaction fee on each trade fill.
The fee starts at 0.050% of trade notional and gets cheaper as your rolling 30-day trading volume grows. It is designed to be competitive, easy to understand, and aligned with active use.
Transaction fee tiers
Engine attaches the fee to fills through Hyperliquid builder fees. Your rate is based on your trailing 30-day notional trading volume.
| Tier | 30-day volume | Fee per fill |
|---|---|---|
| Tier 0 | $0+ | 0.050% |
| Tier 1 | $10,000+ | 0.040% |
| Tier 2 | $100,000+ | 0.030% |
| Tier 3 | $500,000+ | 0.020% |
The fee applies to trade notional. A $1,000 fill at Tier 0 costs $0.50. A $1,000 fill at Tier 3 costs $0.20.
Each open, close, reduce, stop-loss, or take-profit fill can incur the fee because each one is a trade fill. Your current tier and progress to the next tier are shown in Settings.
What the fee supports
Engine is not just a passive interface. The transaction fee helps pay for the AI infrastructure, model calls, market data, monitoring, execution systems, safety checks, and ongoing product development required to run autonomous trading agents continuously.
Engine does not charge a subscription, deposit fee, spread markup, setup fee, or premium tier fee.
Hyperliquid venue fees, funding payments, slippage, network gas, and Hyperliquid withdrawal fees are separate from Engine's fee and may apply.