What is Engine?

Engine is an AI agent that trades on your behalf on Hyperliquid, around the clock, by following a strategy you write or pick from the marketplace. Every decision the agent makes is shown to you in plain English, every fill is traceable, and you can pause or stop the agent at any time.

That's the whole product, in a sentence. The rest of this page is what each part of the sentence means.

"Trades on your behalf"

You deposit USDC into a Hyperliquid vault you control. Engine never takes possession of your funds. Instead, you grant the agent a narrow signing scope at Hyperliquid that lets it submit trades, and only trades, from your vault. You retain full ownership of the assets, can withdraw at any time without our involvement, and can revoke the agent's signing authority with one click.

The mechanics are covered in Non-custodial architecture. The short version: Engine is a tool, not a custodian.

"On Hyperliquid"

Hyperliquid is the venue Engine trades on. It's a high-performance perpetual futures exchange. You'll need a wallet, a small amount of network gas, and USDC to participate. We picked Hyperliquid because it's the most credibly decentralized perp venue with the depth and uptime to run an agent against around the clock.

"By rules you write or pick"

Engine doesn't trade by some hidden model the way "AI trading bots" do. It trades according to a strategy you author or fork: a plain-English file that describes your universe, the conditions you want the agent to act on, and the risk constraints you want enforced. The file is yours. You can read it, edit it, share it, and revert it. The agent is what operationalizes it tick by tick.

You can pick a starter strategy from the marketplace, fork one and tune it, or write your own from a blank file. Strategies covers all three.

"With full transparency"

This is the part most products in this space don't do. Every read the agent makes, every rule it checks, every order it submits, and every fill it gets is logged in plain English to a decision terminal you can scroll through, search, and ask questions of. If a trade surprises you, you can ask the agent why, and it will tell you, citing the rule it matched and the data it saw.

We don't believe in opaque trading software. The decision log is the product as much as the agent is.

How Engine fits together

A useful mental model: three boxes.

1. Your strategy file. Plain English. Lives in Engine. You own it.
2. The agent. Runs continuously, reads market state, interprets your strategy, decides whether to trade. We run this. You don't have to think about it.
3. Your Hyperliquid vault. Holds your funds. You own the keys. The agent has a trade-only scope here; nothing else.

Funds flow only between you and the venue. The agent stands beside the relationship, not inside it.