The phrase "no-KYC exchange" covers a wide range of structurally different products. A non-custodial instant swap service is structurally different from a decentralised peer-to-peer marketplace, which is structurally different from a centralised exchange that has chosen not to require verification below a certain threshold. These differences matter for your privacy and security.
Non-custodial instant swap services
These services take one cryptocurrency and return another. No account, no sign-up, no identity verification. You send funds to a deposit address and receive converted funds at your destination address. Fast — most swaps complete in 2–10 minutes. Simple. Private — no account record, no identity linked to the exchange, no record retained after settlement. Wide asset support across hundreds of pairs.
Terce operates in this category. Non-custodial, no identity verification required, 340+ supported assets, floating rate locked at confirmation. Other services in this category include ChangeNOW, SimpleSwap, and SideShift. Key differentiators are rate quality, supported pairs, and refund policy.
Decentralised exchanges
DEXes operate through smart contracts on a blockchain. There is no company, no server that can be seized, and no operator subject to regulatory compliance. Uniswap, Curve, and Jupiter are the prominent examples. Genuinely decentralised, non-custodial, and trustless — the smart contract enforces the trade. Limitation: confined to on-chain assets within one ecosystem. No cross-chain swaps natively. More technical user experience than instant swap services.
Decentralised P2P exchanges
Bisq for Bitcoin and Haveno for Monero connect individual buyers and sellers directly, with escrow handled by the protocol rather than a company. No central operator, no account, no KYC. The important distinction from instant swap services: P2P exchanges support fiat payment methods, meaning you can acquire cryptocurrency starting from a bank transfer without touching a KYC exchange at any point. The tradeoffs are slower execution, thinner liquidity, and more technical setup.
Centralised exchanges without KYC
Some centralised exchanges accept users without identity verification below certain limits or in certain jurisdictions. This category is shrinking under regulatory pressure. The significant caveat: a centralised exchange that does not require KYC today may require it tomorrow. The company exists, it has servers and banking relationships, and user accounts and transaction histories are retained even if no government ID was submitted. This is meaningfully less private than a non-custodial swap where no account exists and no history is retained.
How to choose
For crypto-to-crypto conversions with privacy: non-custodial instant swap. For Monero specifically: non-custodial swap services or Haveno — most DEXes do not support XMR because it is not EVM-compatible. For fiat-to-crypto without KYC: Bisq for Bitcoin, Haveno for Monero, Bitcoin ATMs for cash. For speed above all: non-custodial instant swap wins — a swap on Terce takes approximately three minutes from initiation to receipt.