How to Buy Ontology (ONT)
Every exchange we track that lists ONT, what the buy costs, and what it costs to take ONT with you afterwards.
24 of the exchanges we track list ONT, 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 — $0.40 to buy $1,000 of ONT and move it to your own wallet. ONT moves over 3 networks (Ontology, BNB Smart Chain (BEP20), Ontology Gas) — pick the same one on the exchange withdrawal screen and in your wallet. 2 of them have ONT withdrawals paused right now — you can buy there, but you cannot take the coin with you until it reopens.
Networks ONT runs on
Where to buy ONT
All-in cost is the trading fee on a $1,000 market buy plus the cheapest fee that exchange charges to withdraw ONT. 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 | $0.056101 ONT · Ontology | $0.56 | 9,475 | Visit ↗ |
 BinanceReferralPay with Card, Bank, Apple/Google Pay | $1.000.1% taker | $0.0016830.03000 ONT · Ontology | $1.00 | 866 | Visit ↗ |
 OKXReferralPay with Card | $1.000.1% taker | $0.011780.2100 ONT · Ontology | $1.01 | 411 | Visit ↗ |
 GateReferralPay with Card | $1.000.1% taker | $0.045840.8170 ONT · Ontology Gas | $1.05 | 2,059 | Visit ↗ |
 BitgetReferralPay with Card, 3rd-party | $1.000.1% taker | $0.056101 ONT · Ontology | $1.06 | 2,516 | Visit ↗ |
 KCEXPay with Card, 3rd-party | $0.000% taker | $0.40407.2 ONT · BNB Smart Chain (BEP20) | $0.40 | 908 | Visit ↗ |
 BitunixPay with P2P | $1.000.1% taker | $0.022440.4000 ONT · BNB Smart Chain (BEP20) | $1.02 | 993 | Visit ↗ |
 CoinWPay with Card, Apple/Google Pay, 3rd-party | $1.000.1% taker | $0.056101 ONT · Ontology | $1.06 | 1,218 | Visit ↗ |
 BYDFiCrypto deposit only | $1.000.1% taker | $0.18913.37 ONT · BNB Smart Chain (BEP20) | $1.19 | 101 | Visit ↗ |
 WhiteBITPay with Card | $1.000.1% taker | $0.21323.8 ONT · Ontology | $1.21 | 423 | Visit ↗ |
 KuCoinPay with Card | $1.000.1% taker | $0.44888 ONT · Ontology | $1.45 | 2,147 | Visit ↗ |
 CoinExPay with P2P, 3rd-party | $2.000.2% taker | $0.0028050.05000 ONT · Ontology | $2.00 | 1,018 | Visit ↗ |
 HTXPay with Bank, P2P | $2.000.2% taker | $0.056101 ONT · Ontology | $2.06 | 1,159 | Visit ↗ |
 DigiFinexPay with Card, P2P | $2.000.2% taker | $0.056101 ONT · Ontology | $2.06 | 1,009 | Visit ↗ |
 Biconomy.comPay with Card, P2P, 3rd-party | $1.000.1% taker | $1.1220 ONT · Ontology | $2.12 | 990 | Visit ↗ |
 KTXCrypto deposit only | $2.000.2% taker | $0.561010 ONT · Ontology | $2.56 | 220 | Visit ↗ |
 XT.COMPay with Card, Bank, P2P | $2.000.2% taker | $0.981817.5 ONT · Ontology | $2.98 | 1,110 | Visit ↗ |
 Crypto.com ExchangePay with Bank | $5.000.5% taker | $0.056101 ONT · Ontology | $5.06 | 462 | Visit ↗ |
 Gleec BTCCrypto deposit only | $2.500.25% taker | $7.02125.1 ONT · Ontology | $9.52 | 136 | Visit ↗ |
 HitBTCCrypto deposit only | $2.500.1875–0.25% taker | $9.89176.3 ONT · Ontology | $12.39 | 1,786 | Visit ↗ |
 4ECrypto deposit only | — | $0.044880.8000 ONT · BNB Smart Chain (BEP20) | — | 217 | Visit ↗ |
 Mandala ExchangeCrypto deposit only | — | $8.01142.83 ONT · Ontology | — | 319 | Visit ↗ |
 WHXEXCrypto deposit only | $1.500.15% taker | withdrawals paused | — | 235 | Visit ↗ |
 KoinbayCrypto deposit only | $6.000.6% taker | withdrawals paused | — | 253 | Visit ↗ |
Showing 1–24 of 24 exchanges listing ONT
Buying ONT step by step
- Pick a venue from the table. For a coin this size the choice is usually short — 24 exchanges list ONT 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, 12 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 ONT on the exchange is free but custodial. Moving it to a wallet that supports it costs one withdrawal fee, from $0.4040 — send a small test amount first, and match the network on both sides.
How to buy ONT — FAQ
Where can I buy Ontology (ONT)?
On 24 exchanges we track: MEXC, Binance, OKX, Gate, Bitget and 19 more. The table above has each one with its trading fee, the payment methods it takes and what it charges to withdraw ONT.
What is the cheapest way to buy ONT?
KCEX, at $0.40 to buy $1,000 of ONT and withdraw it — $0.00 in trading fee plus $0.4040 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 ONT with a credit card?
Indirectly, yes. 12 of the exchanges listing ONT accept a card, but the card almost always buys a major asset — USDT, USDC, BTC — which you then swap for ONT 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 ONT?
Yes, and it is worth checking before you choose where to buy. It is a flat amount of ONT, set by each exchange per network, so it does not scale with the size of your purchase — the cheapest in the table is $0.4040 on KCEX. Our full ONT withdrawal fee table compares every exchange and every network.
Is it safe to leave ONT 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 $0.4040 for ONT. For a trading balance, staying put is reasonable; for a long hold, most people move.
Which network should I use for ONT?
ONT is issued on 3 networks and they are not interchangeable — ONT sent over Ontology will not arrive at an address on BNB Smart Chain (BEP20). Ontology is the one most exchanges use (17 of them). Withdrawal fees differ per network too, sometimes by an order of magnitude, so the cheapest network is worth checking as well as the cheapest exchange.
Exchange coverage for ONT 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.