KuCoin Token (KCS)

KuCoin Token (KCS) is the exchange token of KuCoin, a crypto exchange founded in 2017 and registered in the Seychelles. KCS gives holders a discount on trading fees and a small daily payout drawn from the exchange's fee income, and KuCoin uses part of its profits each month to buy tokens back and destroy them. The stated goal is to shrink the supply from an original 200 million tokens to 100 million.

KCS began as an ERC-20 token on Ethereum and later also became the native coin of KuCoin Community Chain (KCC), a network compatible with the Ethereum Virtual Machine launched in 2021. It sits in the same group of exchange tokens as BNB (BNB) and Gate Token (GT), whose value is closely bound to one company's business.

Picture a members' card at a busy market hall. Members pay a little less at every stall, and at the end of each day the hall's owners put part of the stall fees into a pot and share it among the cardholders. Every month the owners also buy some cards back from members and cut them up, so that the number of cards in circulation slowly falls towards a target.

KCS is that card. Traders who hold it on KuCoin pay lower fees and collect a daily bonus, and the monthly buybacks mean fewer tokens over time. The arrangement works only while the market hall is busy and open. If customers leave, or the hall is forced to close its doors in a country, the card is worth less, because nearly everything it does depends on the hall itself.

KuCoin launched in 2017 and issued KCS the same year, selling part of the supply to early backers and keeping a share for the founding team. In late September 2020 attackers took control of KuCoin's hot wallets and stole crypto assets worth roughly $280 million at the time, one of the largest exchange thefts on record. KuCoin worked with token issuers and other exchanges to freeze and trace funds and later said most of the stolen value had been recovered; blockchain analytics firms linked the attack to the North Korean Lazarus group. KCC followed in mid-2021, after which part of the KCS supply moved onto the new chain.

Each month KuCoin spends part of its net profit buying KCS on the open market and burns what it buys, announcing the amount; by December 2025 it had completed its 66th monthly burn. Holders who keep KCS on the exchange receive the daily KCS Bonus, paid from a share of trading fees. Paying trading fees in KCS earns a discount of up to 20 percent, which can be written as:

• $F$ is the fee actually paid.
• $V$ is the value of the trade.
• $f$ is the standard fee rate, written as a decimal.
• $d$ is the discount for paying in KCS, here 0.20.

On a $10,000 trade at a standard rate of 0.1 percent, the normal fee is $10. Paying in KCS gives $F = 10{,}000 \times 0.001 \times (1 - 0.20) = 8$, so the trader pays $8 worth of KCS. In this way the token's tokenomics mix a discount, a dividend-like payout and a shrinking supply.

• Fee discounts. KCS can pay trading fees on KuCoin at a reduced rate.
• Daily bonus. Holders share part of the exchange's fee income each day.
• Network fees. KCS pays gas fees on KuCoin Community Chain.
• Token sales. KuCoin's launch programmes for new tokens have often required or rewarded KCS holdings.

In December 2023 KuCoin agreed to pay $22 million and to stop serving New York residents to settle a lawsuit by the state's Attorney General over operating without registration. In March 2024 US prosecutors in Manhattan charged KuCoin and its founders Chun Gan and Ke Tang with violating the Bank Secrecy Act, saying the exchange had not registered with FinCEN, had weak know-your-customer controls and had never filed suspicious activity reports. On 27 January 2025 Peken Global Limited, the company that runs KuCoin, pleaded guilty to one count of operating an unlicensed money transmitting business. It agreed to a fine of about $112.9 million and forfeiture of about $184.5 million, a total of about $297 million, and to stay out of the US market for at least two years. The two founders entered deferred prosecution agreements, each agreeing to forfeit about $2.7 million and give up any role in running the exchange.

Critics argue that a token paying holders a share of fees looks much like an investment in the company, and that holders have no claim on KuCoin's assets if it fails. The record of weak anti-money laundering controls and the 2020 theft also show how much KCS depends on the exchange's security and standing with regulators.

• KuCoin
• US Attorney's Office, Southern District of New York: KuCoin guilty plea