Changelly is a no-KYC swap exchange — until the AML scoring engine decides your transaction looks suspicious.

How it works

Changelly is an instant-exchange aggregator that quotes a single rate across a network of partner liquidity providers. The user picks a from-asset and a to-asset, sends the input to a deposit address Changelly controls, and the platform routes the trade through whichever venue offers the best price at that moment. Funds touch Changelly's wallets between the deposit and the payout — this is custodial during the swap, even if the platform does not run long-term user balances. The service was founded in April 2015 by Konstantin Gladych and is registered in St. Vincent and the Grenadines. The product line has since widened into a fiat on-ramp via partners (MoonPay, Simplex), a desktop and mobile wallet, and a Pro spot desk, but the headline product remains the one-screen swap.

KYC & privacy

The signup-free path is real: a basic swap can be initiated without creating an account, and Changelly does not ask for ID at the door. The KYC layer is tiered and reactive. The published AML/KYC policy lets verified users trade up to roughly 10,000 EUR per 48 hours on passport-only verification, with face-to-face calls and additional documents required for larger volumes. The piece that surprises users is the automated risk-scoring engine: every transaction is screened, and any swap flagged as suspicious is held until the depositor passes KYC, regardless of size. Triggers listed in the policy include funds tied to high-risk addresses, unusual amounts, and — verbatim — "customers requesting an exchange of untraceable cryptocurrencies." IP addresses are logged; an email is needed to chase support tickets.

Strengths and limits

The asset list is genuinely deep — 1,200+ tickers, including Monero pairs that several mainstream venues have dropped. Pricing is competitive on majors thanks to the aggregator model, and the swap UI is beginner-friendly. The decade-long operating record matters too: Changelly itself has never been hacked or accused of an exit. The limits are concentrated on the compliance side. Frozen-swap reports recur month after month on Trustpilot, Reddit, and the crypto press; a widely-covered case in late 2025 saw a user recover 4.3 million USD only after escalating publicly and bringing in third-party blockchain analysts. The AML engine is opaque — no published threshold, no warning at quote time, and resolution timelines that vary wildly between cases. For a service marketed as no-KYC, the practical experience can pivot, without notice, into a very KYC service, with funds in custody while it sorts itself out.

Verdict

Changelly works fine for the trades it lets through, and most users will never see a hold. The risk is asymmetric: when the AML engine fires, the user is already exposed and may face weeks or months of friction to retrieve their own coins. It is a serviceable swap for small, low-stakes trades — not a venue for size, and not for users who object to opaque compliance reviews.