A no-KYC crypto exchange is any service that lets you trade crypto without uploading an ID to start. There are six main types: swap services, decentralized exchanges (DEXs), atomic swaps, peer-to-peer (P2P) markets, exchanges with a no-ID tier, and crypto ATMs. They differ most in three ways: who controls your coins during the trade, what you pay, and how much work the trade takes.
This guide names no services. It explains how each type works, so you can judge any service you find. Most people call these anonymous crypto exchanges, because a normal trade asks for no ID. Bitcoin payments stay visible on the Bitcoin chain, so for the strongest privacy, receive Monero. For what KYC means and what a no-KYC swap asks for, read crypto exchange without KYC.
The six types at a glance
| Type | ID asked to start | Account | Who controls the coins during the trade | Typical cost | Speed | Main thing to watch |
|---|---|---|---|---|---|---|
| Swap service | No | No. You get an order ID | The service, from deposit to payout | A fee inside the quote, plus the fee to send | Confirmations on both chains | Fake copies of the site, and the network you send on |
| DEX | No. You connect a wallet | No | You, until the contract runs the trade | The network fee, plus any fee in the price | One transaction on one chain | Contract bugs, and fake tokens with real names |
| Atomic swap | No | No | You, until the swap completes or refunds | Network fees on both chains | Confirmations on both chains, plus finding a match | Setup mistakes. A timeout returns your coins |
| P2P market | Depends on the market | Often a profile | The other person, or an escrow | The price you agree, plus any market fee | Depends on the other person | The other side may not deliver |
| No-ID tier at an exchange | No, within its limits | Yes | The exchange, while coins sit in your account | Trading and withdrawal fees | Withdrawals wait for the network | Limits, and coins that sit in someone else’s account |
| Crypto ATM | Depends on the operator and the amount | Depends on the operator | The operator, until it sends the coins | Set by the operator | Coins are sent after you pay | Scammers who send people to an ATM |
The rows show the usual case. A single service can differ, so read its own terms.
Types of no-KYC crypto exchanges
1. Swap services
A swap service takes one coin and sends you another. You pick two coins, paste the address for your new coins and send a deposit. You get an order ID, not an account.
Many of these services are advertised on speed. Each swap still waits for network confirmations on both coins.
The trade-off is custody. Your deposit goes to an address the service controls, and it stays out of your hands until your new coins are sent. So what the service publishes matters: its terms, its refund rules and what the quote includes. The checklist later in this guide shows what to look for.
HiddenSwap is one example of this type. The last section of this guide explains how it works.
2. Decentralized exchanges (DEXs)
A DEX is a set of smart contracts on a blockchain such as Ethereum. You connect your own wallet, with no account, and trade tokens on that chain. Ethereum.org says that with a DEX you never give up control of your assets.
You pay the network fee in the chain’s own coin. On Ethereum that is ETH, and the fee is paid whether the transaction succeeds or fails. The price can also include a fee set by the DEX.
A DEX usually trades tokens on one chain. For coins on separate chains, such as Bitcoin and Monero, people use an atomic swap or a swap service. A DEX also takes the company out of the trade, but not every risk. Ethereum.org notes that Ethereum products, like any software, can suffer from bugs and exploits. Some tokens can also be frozen by their issuer. Tether’s terms, for example, let it freeze USDT and blacklist addresses that hold it.
3. Atomic swaps
An atomic swap trades coins on two chains directly between two people. There is no service in the middle. The idea builds on hashed time-locked contracts, described for Bitcoin in BIP 199. One side can claim the coins only by revealing a secret. If that does not happen before a timeout, the other side can take its coins back.
A research paper from 2020 describes an atomic swap between Bitcoin and Monero. Its design removes the need to trust a server or the other trader, and funds stay safe as long as both sides stick to the protocol.
The costs are time and effort. You need dedicated software for both chains, and someone who wants the other side of your trade. You pay network fees and wait for confirmations on both chains. No company runs the trade, and no support desk can help if your setup fails.
4. Peer-to-peer (P2P) markets
A P2P market matches you with another person. The two of you agree on the price and the payment method. Some markets lock the coins in escrow, or in a multisignature address, until both sides confirm. Bitcoin.org names escrow and multisignature wallets as ways to add protection to payments that cannot be reversed.
Most of the risk comes from the other person. They may not deliver, and they may learn who you are or where you live. Whether a market asks for ID depends on the market and the payment method. Start with a small amount, and keep every message about the trade.
HiddenSwap does not match people or hold coins in escrow.
5. Exchanges with a no-ID tier
Some exchanges let you open an account and trade within set limits without an ID. To go past those limits, you upload one.
This model is custodial. Your coins sit in an account the exchange controls, not in your own wallet. While they are there, the exchange decides when a withdrawal goes out. You also have an account with a login, an email address and a history of every trade, even before you upload anything.
So read the limits and the terms before you deposit. Check what happens to your balance if you reach a limit, and move coins to your own wallet when you no longer need them on the exchange.
6. Crypto ATMs
A crypto ATM is a machine in a shop or another public place. You pay cash into the machine, and it sends coins to a wallet address you scan. Whether it asks for a phone number or an ID depends on the operator and the amount. Each operator sets its own fees and limits, so read what the machine shows before you pay.
A consumer protection agency warns of a common scam: people are sent to a crypto ATM with a QR code for the scammer’s own wallet, and the cash goes straight to the scammer. Only scan an address from a wallet you control.
HiddenSwap has no machines and takes no cash, card or bank payments.
Custodial vs non-custodial
Custodial means someone else controls your coins for a time. Non-custodial means you keep control until the trade is done.
- Non-custodial: DEXs and atomic swaps. Your coins stay in your wallet, or locked by rules no one can change midway, until the trade runs. You carry the risk of your own mistakes and of software bugs.
- Custodial for a short time: swap services and crypto ATMs, between your payment and the payout.
- Custodial for longer: exchanges with accounts, for as long as you leave coins there, and P2P escrow until the trade settles.
A swap service with no accounts is sometimes called non-custodial because it keeps no balance for you. That is only part of the picture. On HiddenSwap, your deposit leaves your control when you send it, and it stays that way until your new coins are sent. So give a refund address you control, and check the coin, the network and the amount before you send. If the swap cannot finish, the refund address decides where your coins go back to.
How to judge any no-KYC service: 8 checks
Use these checks on any service, including ours.
- Terms. The service publishes terms that say what happens to your deposit during the trade and what you may not do.
- Refund policy. It says when a deposit is refunded, where the refund goes and which fees come out of it.
- Networks and memos. It shows which network each coin uses, and it says what happens to a deposit sent on the wrong network or without a required memo.
- Tor. The site works in Tor Browser, ideally with JavaScript turned off. Tor Browser keeps anyone watching your connection from seeing which sites you visit.
- Public track record. Look for reports from real users in places you trust, over months rather than days. Treat reviews on the service’s own site with care.
- Support by order ID. You can get help with an order ID alone, without an account.
- Fee shown first. The quote shows the amount you get, with fees included, before you send anything. A floating quote can still change before your deposit confirms.
- No seed-phrase requests. A real service never asks for your seed phrase, private keys or passwords, or for a payment to release a normal swap.
If a service fails one of these checks, look elsewhere. The risks behind the checks are covered in are no-KYC crypto exchanges safe?
Where HiddenSwap fits
HiddenSwap, a no KYC crypto exchange, is a swap service, type 1 above. In practice that means:
- Crypto-to-crypto only. You send one coin and get another. No card or bank payments.
- No account, no email and no ID. Your order ID is the only key to your swap, and it is all support needs.
- Custodial for a short time. From the moment you send your deposit until your new coins go out, the coins are out of your hands.
- Refunds go where you choose. Add a refund address when you start the swap. Without one, a refund goes to the address the coins came from.
- The estimate includes all fees before you send, as the fees page explains.
- The rules are published in the Terms and on the refunds page. The site works in Tor Browser, and the swap works with JavaScript turned off.
To get Monero, start with Bitcoin to Monero or USDT (TRC-20) to Monero. To move out of it, see Monero to Bitcoin. Our Monero (XMR) exchange page lists every Monero route we cover.