Privacy

Short version: no accounts, no email, no KYC, no cookies, no third-party analytics. Purrbook can’t identify you because it never collects anything that could.

What we don’t collect

• No account, no sign-up, no email or phone required to use the app.
• No identity verification (KYC) — you connect a wallet, that’s it.
• No cookies and no third-party analytics or ad trackers on the app or these docs.

What stays in your browser

A few things are saved in your browser’s local storage — on your device, never sent to us:

• Your session (agent) key — used to sign orders locally. It lives only in your browser and is never transmitted to Purrbook’s servers. You can revoke it any time from your Hyperliquid account settings.
• Preferences — such as your light/dark theme choice and minor UI settings.

Cookies & cache

Purrbook sets no cookies. The preferences above use local storage, not cookies, and nothing is shared across sites. Our host (Vercel) and content delivery may cache static files (pages, fonts, images) in your browser for speed — that’s ordinary web caching and holds no personal data. To clear it, clear your browser’s site data for the domain, or revoke your session key from Hyperliquid.

What our servers see

Purrbook’s indexer and hosting serve read-only market data over the public internet. Like any web server, they process standard request logs (IP address, timestamp, requested URL) for reliability and abuse prevention. These logs are not tied to any account or identity, because there isn’t one.

The on-chain reality

Purrbook is a non-custodial interface: your orders are signed in your browser and submitted directly to Hyperliquid. Your wallet address and every trade you make are recorded on Hyperliquid and are public and permanent by the nature of the network. This is pseudonymous — not linked to your name unless you link it yourself elsewhere — but it is not private. Treat on-chain activity as public.

Questions

Privacy questions? Email info@purrbook.xyz. See also Non-Custodial & Safety.