Own the move.
Keep your keys.
Take a position on Bitcoin, Ethereum, or the next Fed decision — on real Hyperliquid order books, with keys that never leave your browser.
727
markets live on Hyperliquid
$1.9B
traded in 24h on Hyperliquid
$0
of your funds held by Purrbook
Built on / works with
- Hyperliquid
- Arbitrum
- USDC
- MetaMask
- WalletConnect
- thirdweb
See the whole book before you commit.
Payout previews walk the real order book for the size you typed. You get the price you would actually fill at, not the one at the top of the book.
That is a live book beside this — Bitcoin’s real depth on Hyperliquid, the same data the app walks when it prices your size.
- Price
- What each slice actually costs — not the headline number.
- Size
- What you can genuinely fill at that price.
- Total
- The running notional before the price moves against you.
Every market names its judge.
Before you trade, the market states its resolution rule, where settlement comes from, and who deployed it. Purrbook does not decide outcomes — and we show you who does.
Your keys never leave.
If Purrbook disappeared tomorrow, you would keep everything. Your funds live on Hyperliquid, under keys we never hold.
- 01 · Your browser
Signs the order
The key stays in this tab. Nothing leaves it but a signature.
- 02 · Direct
Straight to the venue
The signed order goes to Hyperliquid. No stop in between.
- 03 · Hyperliquid
Matched on the book
It rests and fills on the venue's own order book, beside everyone else's.
No Purrbook server on this path
- Your keys
- Never leave your browser. We could not take custody of your funds if we wanted to.
- Your orders
- Signed locally and submitted straight to Hyperliquid. They do not pass through our servers.
- Our backend
- A read-only indexer. It serves prices and market data; it cannot move anything.
Nothing on trades, today.
Purrbook charges no interface fee right now. When that changes it will be a published per-market rate, and Hyperliquid’s own protocol fees stay theirs to set.
