Guide · 5 min read
No-KYC vs KYC crypto exchanges: what is the difference?
By the AltoSwap team · Reviewed and updated · Editorial policy
Short answerA KYC exchange verifies your identity before you can trade, holds your funds in an account and keeps your documents on file. A no-KYC swap service converts one coin to another without an account or identity documents: you send from your own wallet and receive to your own wallet. No-KYC is faster and collects far less data, but offers no fiat on-ramp, and individual swaps can still be screened by the exchange that executes them.
Side by side
| KYC exchange | No-KYC swap service | |
|---|---|---|
| Sign-up | Account, email, phone | None |
| Identity documents | ID, selfie, often proof of address | None requested |
| Time to first trade | Hours to days | Minutes |
| Who holds your funds | The exchange, in your account balance | You. The service only handles coins during the swap |
| Personal data stored | Documents and full trading history | The swap itself; deleted after a short period |
| Fiat deposits and withdrawals | Yes | No, crypto to crypto only |
| Order types | Limit, market, margin | Simple conversion at a quoted rate |
| Exposure if the company is breached | Identity documents and balances | Little: no documents, no balances |
Why people choose no-KYC
- Data minimisation. Identity documents uploaded to an exchange can be leaked or stolen; documents that were never uploaded cannot.
- Speed. There is no verification queue between you and a simple conversion.
- Self-custody. Coins go from your wallet to your wallet; there is no account balance to be frozen or lost in an insolvency.
- Access. People without the documents an exchange demands can still move between assets.
What no-KYC does not mean
It does not mean unregulated or invisible. Exchanges that execute instant swaps still screen deposits automatically, and blockchains remain public. It also does not change your own obligations: taxes and local laws apply to a swap exactly as they would on any exchange.
It also is not uniform. Some 'no-KYC' services ask for documents the moment a transaction is flagged. That difference is what the A-to-D KYC rating captures, and why AltoSwap shows it on every swap and uses A-rated exchanges first.
Which should you use?
- Converting between cryptocurrencies you already hold: a no-KYC swap is simpler, faster and exposes less data.
- Buying crypto with a bank transfer or card, or selling to fiat: you need a service that handles fiat, and those verify identity.
- Active trading with order books and leverage: a full exchange.
Ready to swap?
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