CHow to Buy COA
Every exchange we track that lists COA, what the buy costs, and what it costs to take COA with you afterwards.
6 of the exchanges we track list COA, and 5 of those accept fiat, so you can buy it without holding crypto first. The cheapest place to place the order is Ourbit at $0.00 on a $1,000 market buy. COA has no market-cap listing, so nobody publishes a dollar price we could convert the withdrawal fee into — the cheapest exit we can see is free on MEXC over BNB Smart Chain (BEP20), charged in the coin itself. Every exchange sends COA over BNB Smart Chain (BEP20), so there is no network to get wrong. 2 of them have COA withdrawals paused right now — you can buy there, but you cannot take the coin with you until it reopens.
Networks COA runs on
Where to buy COA
COA has no market-cap listing we can price it from, so the exit fee is shown in COA itself rather than in dollars — the amount each exchange deducts when you withdraw. It is still the number that decides where to buy, because it is flat: the smaller your purchase, the more of it the fee eats. 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 | Coins listed | Buy |
|---|---|---|---|---|
 MEXCReferralPay with Card | $0.500–0.05% taker | FreeBNB Smart Chain (BEP20) | 9,475 | Visit ↗ |
 BitgetReferralPay with Card, 3rd-party | $1.000.1% taker | 0.1500 COABNB Smart Chain (BEP20) | 2,516 | Visit ↗ |
 OurbitPay with Bank | $0.000% taker | 20 COABNB Smart Chain (BEP20) | 1,980 | Visit ↗ |
 HashKey GlobalCrypto deposit only | $1.200.12% taker | 40 COABNB Smart Chain (BEP20) | 115 | Visit ↗ |
 BitMartPay with Card, P2P, 3rd-party | $1.000.1% taker | withdrawals paused | 3,695 | Visit ↗ |
 HibtPay with P2P | $2.000.2% taker | withdrawals paused | 1,721 | Visit ↗ |
Showing 1–6 of 6 exchanges listing COA
Buying COA step by step
- Pick a venue from the table. For a coin this size the choice is usually short — 6 exchanges list COA at all, and the table already shows what you will pay to leave as well as to buy.
- Fund the account. 5 of those exchanges take fiat, 3 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 COA on the exchange is free but custodial. Moving it to a wallet that supports it costs one withdrawal fee — send a small test amount first, and match the network on both sides.
How to buy COA — FAQ
Where can I buy COA?
On 6 exchanges we track: MEXC, Bitget, Ourbit, HashKey Global, BitMart and 1 more. The table above has each one with its trading fee, the payment methods it takes and what it charges to withdraw COA.
What is the cheapest way to buy COA?
We cannot put a dollar figure on it: COA has no market-cap listing, so there is no price to convert its withdrawal fee into. What we can compare is the two halves separately — the lowest trading fee is $0.00 per $1,000 at Ourbit, and the cheapest withdrawal is free at MEXC over BNB Smart Chain (BEP20). Work out which matters more from the size of your buy.
Can I buy COA with a credit card?
Indirectly, yes. 3 of the exchanges listing COA accept a card (MEXC, Bitget, BitMart), but the card almost always buys a major asset — USDT, USDC, BTC — which you then swap for COA 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 COA?
Every exchange charges one, as a flat amount of COA per network rather than a percentage. We do not have a priced figure for all of the venues listing COA yet — the COA withdrawal fee page has whatever each exchange publishes.
Is it safe to leave COA 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. For a trading balance, staying put is reasonable; for a long hold, most people move.
A note on this page: COA is a ticker the exchanges below list and settle, but it has no CoinMarketCap listing, so there is no price, market cap or rank to show and no coin page for it elsewhere on this site. Tickers are not unique across exchanges either — confirm on the exchange itself that its COA is the asset you mean, and check the contract address before you send anything.
Exchange coverage for COA 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. 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.