UR (and Fiat24)

A Swiss account with a named IBAN, several currencies and a Mastercard debit card. Stablecoins come in onchain and become money held at the Swiss institution.

Company

SR Saphirstein AG (UR, Fiat24)

Network

Mastercard principal

Card volume

$821.5K in 30 days

Founded

2018

Licensed as

SR Saphirstein AG holds a Swiss fintech license from FINMA (2021), which allows public deposits up to a cap (CHF 100M when granted). It runs both the UR and Fiat24 brands.

BINs and regions

Its own Mastercard BIN, issued from Switzerland. Fiat24 cards draw on EUR, USD, CHF and CNH balances; UR lists seven currencies. UR launched for users in 40+ selected countries.

Card types

Mastercard debit. Fiat24 cards are virtual only; UR also offers physical cards. Co branded cards for partners.

How programs fund it

Users top up in stablecoins such as USDC. Smart contracts turn them into money balances shown onchain as tokens (USD24, EUR24, CHF24, CNH24). Deposits on Mantle, Arbitrum, Ethereum, Base and others.

Pays the network

Settles with Mastercard in money, the usual way. No stablecoin network settlement described.

Card volume

$93.7M all time and $821.5K in the last 30 days (PaymentScan, Nov 3, 2026). Monthly volume peaked at $8.8M in Jan 2026.

Programs it powers

Bitget Wallet, SafePal and imToken (Fiat24), Zoomex, TopNod and others.

Pros

Swiss license with a named IBAN per user; several card currencies, so less FX; its own Mastercard BIN.

Cons

The license caps deposits; Fiat24 cards are virtual only; Mastercard only; new mainland China signups through partner wallets were paused from Jun 5, 2026.

Rules

FINMA supervises the license and Mastercard Europe rules apply to the BIN. Card balances are money at the institution, not stablecoins.

More card issuers

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Public information as of September 2026, simplified. Not legal or investment advice. Open the full stablecoin cards world.