The stablecoin card rankings, footnotes included
Which stablecoin card do people actually use? The analytics site Paymentscan publishes a weekly chart that tries to answer that, and for the week of 21 to 27 September it counted a record $288 million of card spend. The chart is useful. It also reads differently once you add its own footnotes: two of the biggest numbers come from the card companies, the growth ranking favours the smallest cards, and six of the ten cards on it share one issuer.
The chart ranks ten cards by how fast their spend grew against the week before. BFinance comes first at 39.6%, then KAST at 23.8% and Karta at 20%. RedotPay, by far the largest card program, comes tenth at 2.3%.
Percentages flatter small cards. BFinance's 39.6% came to about $64,000 of extra spend in the week, while KAST's 23.8% came to about $6.1 million, close to a hundred times as much. RedotPay, last on the growth list, added about $2.1 million, more than thirty times BFinance's gain. A card that goes from $160,000 to $224,000 a week is growing fast, and it is still a small card.
Two of the numbers do not come from the blockchain. Paymentscan builds most of its figures from card settlements it indexes onchain, but the spend figures for RedotPay and BFinance are supplied by the two companies, and Paymentscan's notes say it has not verified them. For RedotPay it can see the money going in, the top-ups, onchain. The spending itself is RedotPay's own count.
That matters most for RedotPay, because it is the biggest number in the whole category. Its reported spend for August was $403.6 million, about 36% of all the card spend Paymentscan tracked that month. Across every month on record it accounts for more than half.
Six of the ten cards on the chart run through one company. Paymentscan's issuer pages put KAST, Karta, Solayer, Tuyo, Avalanche Card and Plasma One on Rain, the card infrastructure company behind many stablecoin cards, and Rain's programs added up to $468 million of spend in August, about 42% of the tracked total. Rain has not confirmed Paymentscan's tracking method, so treat that share as an estimate. The point for a cardholder holds either way: cards that compete on design, cashback and yield often sit on the same issuer, and a change of terms at the issuer reaches every card on it.
Here are the five cards we score, next to their spend. Spend is for August 2026, the last complete month, from Paymentscan. The score is our Card Score out of 16, which looks at who issues the card, what it costs to fund and use, what happens when it gets frozen, and four more criteria. Spend plays no part in it.
| Card | Card spend in August 2026 | Card Score |
|---|---|---|
| RedotPay | $403.6M, reported by RedotPay | 9/16 |
| ether.fi Cash | $109.5M | 13/16 |
| KAST | $104.8M | 11/16 |
| Wirex One | $34.9M | 13/16 |
| Bybit Card | Not tracked | 8/16 |
The card with the most reported spend sits fourth of five on our board. Heavy use tells you a card works for a lot of people. It says little about who holds the money or what happens when an account is frozen, and those are the places where RedotPay loses points with us: card fees that make it costly to start, and terms that let it suspend an account at its own discretion.
Two changes on this site follow from this. Each card profile now shows the card's monthly spend as a dated line, labelled as a third-party figure, with RedotPay's marked as reported by the company. The cards page has a new list, Where people spend the most. Neither touches the score, and we update the figures on the first Monday of each month.
See the list →Sources: Paymentscan, stablecoin card weekly volume, 21 to 27 September 2026, published on X, checked 29 September 2026. Paymentscan card pages for RedotPay, EtherFi, KAST and Wirex One, its Rain issuer page and its methodology notes, checked 29 September 2026. CBL card records, checked 29 September 2026.