Privacy
No account, no KYC, no cookies, no analytics. Exactly what buyz.cash stores, and for how long.
The short version
No account, no sign-up, no KYC, no analytics service, no advertising network, and no cookies. We never ask who you are, and the only identifying thing we can hold — an email address — is optional and deleted within minutes.
What we store, exactly
- Swap records
- The asset, amount, deposit address, your Zcash address and your refund address, kept so you can reopen a swap from its link and so there is a record of what was quoted. These are public blockchain addresses, but they are yours, and holding them alongside each other is information the chain does not publish.
- A hash of your IP
- Not your IP. It is combined with a secret salt and hashed, so it can only be compared against itself — it exists to stop one machine flooding the quote endpoint, and cannot be turned back into an address.
- Your email, only if you give it
- Used for exactly one message about exactly one swap. It is deleted in the same operation that records the send, and dropped without being used if you are on the page when the swap lands.
- Daily counters
- How many swaps were quoted, started and completed each day. Totals only, with nothing per-visitor in them.
What stays in your browser
Your recent swaps and your slippage preference are kept in this browser’s local storage. They are never sent to us, are not visible on your other devices, and clearing site data removes them.
Who else sees it
NEAR Intents receives the details needed to route your swap: the assets, the amount, your Zcash address and your refund address. Cloudflare sits in front of this site and sees request metadata as any network provider would. Cloudflare also delivers the notification email, if you asked for one.
Nobody else. We do not sell, share or rent anything, and there is no third-party script on any page — the coin icons are served from this server for that reason.
Blockchains are public
A swap happens on public ledgers. Anyone can see the transaction that funded a deposit address and the one that paid out, and can often link them. Zcash supports shielded addresses precisely because of this; what privacy you get afterwards depends on your wallet and how you use it, not on us.
Getting it removed
Email [email protected] with the deposit address of a swap and we will delete its record. We cannot delete anything from a blockchain, because nobody can.
Changes
Last updated 19 September 2026. If what we store changes, this page changes in the same release — it is written from the database schema, not from a template.