How to Buy ONEchain (ONE)
Every exchange we track that lists ONE, what the buy costs, and what it costs to take ONE with you afterwards.
19 of the exchanges we track list ONE, and 18 of those accept fiat, so you can buy it without holding crypto first. The cheapest place to place the order is KCEX at $0.00 on a $1,000 market buy. It is also the cheapest once the withdrawal fee is added — $0.01 to buy $1,000 of ONE and move it to your own wallet. Every exchange sends ONE over BNB Smart Chain (BEP20), so there is no network to get wrong. 4 of them have ONE withdrawals paused right now — you can buy there, but you cannot take the coin with you until it reopens.
Networks ONE runs on
Where to buy ONE
All-in cost is the trading fee on a $1,000 market buy plus the cheapest fee that exchange charges to withdraw ONE. It is the number the exchange’s own “how to buy” page never shows you, and it reorders the table more often than not. The coins column is how many assets each exchange lists in total, from our own sync — not the figure CoinMarketCap prints.
| Exchange | Buy fee on $1,000 | Move it out | All-in cost | Coins listed | Buy |
|---|---|---|---|---|---|
 MEXCReferralPay with Card | $0.500–0.05% taker | $0.62504 ONE · BNB Smart Chain (BEP20) | $1.13 | 9,475 | Visit ↗ |
 BitgetReferralPay with Card, 3rd-party | $1.000.1% taker | $0.20431.3073 ONE · BNB Smart Chain (BEP20) | $1.20 | 2,516 | Visit ↗ |
 GateReferralPay with Card | $1.000.1% taker | $0.65944.22 ONE · BNB Smart Chain (BEP20) | $1.66 | 2,059 | Visit ↗ |
 KCEXPay with Card, 3rd-party | $0.000% taker | $0.0093750.06000 ONE · BNB Smart Chain (BEP20) | $0.01 | 908 | Visit ↗ |
 OurbitPay with Bank | $0.000% taker | $0.078130.5000 ONE · BNB Smart Chain (BEP20) | $0.08 | 1,980 | Visit ↗ |
 BitMartPay with Card, P2P, 3rd-party | $1.000.1% taker | FreeBNB Smart Chain (BEP20) | $1.00 | 3,695 | Visit ↗ |
 KuCoinPay with Card | $1.000.1% taker | $0.93756 ONE · BNB Smart Chain (BEP20) | $1.94 | 2,147 | Visit ↗ |
 Biconomy.comPay with Card, P2P, 3rd-party | $1.000.1% taker | $0.93756 ONE · BNB Smart Chain (BEP20) | $1.94 | 990 | Visit ↗ |
 CoinExPay with P2P, 3rd-party | $2.000.2% taker | $0.011880.07600 ONE · BNB Smart Chain (BEP20) | $2.01 | 1,018 | Visit ↗ |
 BitunixPay with P2P | $1.000.1% taker | $1.097 ONE · BNB Smart Chain (BEP20) | $2.09 | 993 | Visit ↗ |
 KTXCrypto deposit only | $2.000.2% taker | $0.15631 ONE · BNB Smart Chain (BEP20) | $2.16 | 220 | Visit ↗ |
 ToobitPay with Card, Apple/Google Pay, 3rd-party | $1.000.1% taker | $1.6110.3245 ONE · BNB Smart Chain (BEP20) | $2.61 | 581 | Visit ↗ |
 HotcoinPay with 3rd-party | $2.000.2% taker | $1.419 ONE · BNB Smart Chain (BEP20) | $3.41 | 643 | Visit ↗ |
 MGBXPay with Bank | $1.000.1% taker | $2.4215.5 ONE · BNB Smart Chain (BEP20) | $3.42 | 364 | Visit ↗ |
 HitBTCCrypto deposit only | $2.500.1875–0.25% taker | $13.2985.08 ONE · BNB Smart Chain (BEP20) | $15.79 | 1,786 | Visit ↗ |
 LBankPay with 3rd-party | $1.000.1% taker | withdrawals paused | — | 1,890 | Visit ↗ |
 WEEXPay with Card, P2P | $1.000.1% taker | withdrawals paused | — | 594 | Visit ↗ |
 XT.COMPay with Card, Bank, P2P | $2.000.2% taker | withdrawals paused | — | 1,110 | Visit ↗ |
 HibtPay with P2P | $2.000.2% taker | withdrawals paused | — | 1,721 | Visit ↗ |
Showing 1–19 of 19 exchanges listing ONE
Buying ONE step by step
- Pick a venue from the table. For a coin this size the choice is usually short — 19 exchanges list ONE at all, and the table already shows what you will pay to leave as well as to buy.
- Fund the account. 18 of those exchanges take fiat, 10 of them by card. Card is fastest and dearest; a bank transfer costs a fraction of it. Depositing a stablecoin you already hold is free on almost every exchange here.
- Place the order. A market order pays the taker fee in the table; a limit order that rests on the book pays the lower maker fee. On a thinly traded coin the spread costs more than either, so a limit order is worth the wait.
- Decide whether to move it. Leaving ONE on the exchange is free but custodial. Moving it to a wallet that supports it costs one withdrawal fee, from $0.009375 — send a small test amount first, and match the network on both sides.
How to buy ONE — FAQ
Where can I buy ONEchain (ONE)?
On 19 exchanges we track: MEXC, Bitget, Gate, KCEX, Ourbit and 14 more. The table above has each one with its trading fee, the payment methods it takes and what it charges to withdraw ONE.
What is the cheapest way to buy ONE?
KCEX, at $0.01 to buy $1,000 of ONE and withdraw it — $0.00 in trading fee plus $0.009375 to move it out over BNB Smart Chain (BEP20). If you are leaving the coin on the exchange, only the first half applies and a different venue may win. Paying by card adds the card processor's charge on top of both, typically 1.8–4%.
Can I buy ONE with a credit card?
Indirectly, yes. 10 of the exchanges listing ONE accept a card, but the card almost always buys a major asset — USDT, USDC, BTC — which you then swap for ONE on the same exchange. That means two fees: the card charge, then the trading fee in the table.
Do I have to pay a fee to withdraw ONE?
Yes, and it is worth checking before you choose where to buy. It is a flat amount of ONE, set by each exchange per network, so it does not scale with the size of your purchase — the cheapest in the table is $0.009375 on KCEX. Our full ONE withdrawal fee table compares every exchange and every network.
Is it safe to leave ONE on the exchange?
It is a custody choice, not a safety switch. While the coin sits there the exchange holds the keys: convenient, recoverable if you lose your password, and dependent on the exchange staying solvent and keeping withdrawals open. Moving it to a wallet you control removes that dependency and costs one withdrawal fee — from $0.009375 for ONE. For a trading balance, staying put is reasonable; for a long hold, most people move.
Exchange coverage for ONE comes from each exchange’s own deposit and withdrawal endpoints (last sync 2026-08-29 00:53 UTC); trading fees are the published base tier, no volume discount applied (verified 2026-08-28). Exchanges we have a referral arrangement with appear first and are tagged as such — it changes no number in any row. Nothing here is investment advice; see our methodology.