Paymentscan Tracks $112M in Rain Card Wallets, $48M at Wirex
Paymentscan has added balance tracking for the card wallets of two stablecoin card issuers. Rain wallets hold more than $112M in stablecoins across Plasma, Base, Ethereum and other EVM networks. Wirex wallets hold more than $48M, on Base and Arc.
Until now the platform published flows — spend volume, transactions, active addresses. Balances are a different measurement: the stock sitting in the wallets at a point in time rather than the money that passed through them.
A wallet balance is an observation, not an attestation
The figure is what a third party can see on a public chain at a given moment. It carries no statement about what the issuer owes cardholders, what sits in bank accounts off-chain, or how the balance is segregated between the issuer's own funds and customer funds. Nothing in an on-chain balance separates those.
Paymentscan is explicit about the limits on the Rain side. Its Rain data rests on a best-effort reading of Rain's smart contract architecture, and the methodology has not been confirmed with Rain. A number derived from inferred contract addresses moves if the inference is wrong or if the issuer adds a wallet the tracker does not know about. The figure is useful as a floor and a trend line, not as a precise balance sheet.
One issuer's wallets sit under more than a dozen card brands
Rain issues for Plasma One, EtherFi, KAST, Karta, Kolo, Tria, Avici, Tuyo, Exa, Solayer, Ethena Pay, Cypher and Avalanche Card, among others. That $112M is not one card programme's float; it is the pooled position behind a large share of the stablecoin cards a shopper might be comparing.
Two cards from different brands can share an issuer, a settlement chain and a set of wallets, which means an issuer-level disruption reaches both at once. Diversifying across card brands does not automatically diversify the infrastructure underneath, and the issuer is usually named in the fine print rather than on the front page.
Wirex, by contrast, shows balances on just two chains, Base and Arc. A narrower chain footprint says something about where a programme settles, which in turn affects deposit routes and the networks a cardholder can top up from without bridging.
Trends will say more than today's number
A single balance reading carries little on its own. What it becomes useful for is the shape over time: whether the float grows alongside spend volume, whether it drops sharply, whether a chain appears or disappears from the mix. Those are visible on a tracker in a way they are not in a press release, and they are the reason to check the balance page against the volume page rather than either alone.
Neither issuer publishes these balances itself, and neither has published a reserve attestation alongside them. The tracker measures what the chain shows.
Earlier issuer-level coverage is in Payment Scan makes card issuers easier to read.
Sources: Paymentscan on Rain and Wirex wallet balances, Paymentscan Rain issuer page.
Related cards
Rain Card
→Corporate Visa card program from Rain with physical and virtual cards, stablecoin-backed settlement, spend controls, Apple Pay and Google Pay support, and business verification required.
Wirex Card
→Ethereum virtual & physical card from Wirex that supports BTC, ETH, USDT, XRP and requires kyc.