Sonar
How to copy a whale on Hyperliquid
Every trade on Hyperliquid is public on-chain. Copy-trading turns that transparency into a strategy: pick a proven trader, mirror their moves onto your own account, automatically. Here's exactly how it works and how to start without risking anything.
What gets copied, exactly
When the trader you're copying opens, resizes, or closes a position, your account does the same move within roughly a second, sized to your capital instead of hers. If she puts 10% of her account into a trade at 5× leverage, your bot puts 10% of yours in, at the same 5× leverage. You're not following a delayed signal or a trade alert, you're running a scaled copy of her live book.
Non-custodial: your funds never move
The mechanism that makes this safe is a Hyperliquid API wallet (sometimes called an agent key): a special key you generate and authorize yourself, that can place and close orders on your account but is cryptographically incapable of withdrawing funds. Your capital sits in your own Hyperliquid account the entire time. You can revoke the key at any moment on Hyperliquid directly, no dependency on the platform you connected it to.
Getting started, step by step
- Try it free first. A paper simulator lets you pick whales and watch a simulated copy play out with realistic fees and slippage, no wallet, no deposit, no signup required.
- Pick who to copy. Traders are ranked on risk-adjusted return and drawdown discipline, not raw PnL, which rewards consistency over lucky leverage.
- Connect a wallet (Rabby, MetaMask…) and fund a Hyperliquid account with USDC when you're ready to go live.
- Generate an API wallet on Hyperliquid and authorize it, a couple of signatures, no fee.
- Set your allocation (what share of your capital the bot deploys) and press start. The bot mirrors from that point on.
What it costs
One fee, on-chain and visible: a Hyperliquid builder fee on the trades executed for you, in the same order of magnitude as the exchange's own taker fee. No subscription, no deposit fee, no profit share, no withdrawal fee. You authorize the fee yourself by signing once, capped by that signature.
Why your PnL won't be identical to hers
Three honest reasons: you likely started copying after she opened her position, so entry prices differ slightly; there's a small mirroring latency (about a second); and fees/slippage apply on both sides. Over time your relative performance tracks hers closely, but the exact numbers will diverge a little, that's normal, not a bug.