Payments & Cards
Payment products move value between crypto and everyday spending, whether that means a card drawing on a stablecoin balance at the till, a ramp converting fiat to tokens, or a rail that settles invoices between businesses. Settlement happens on-chain, while custody and compliance vary from one product to the next.
The filters separate cards, fiat on-ramps, streaming payments that release funds by the second, invoicing tools and Lightning wallets. Entries are listed in editorial order, with featured listings first.
Gnosis Pay
Gnosis Pay is a card issuing platform whose Visa cards settle from a Safe smart account on Gnosis Chain, so the balance stays self-custodial until a purchase is authorised.
Ether.fi Cash
Ether.fi Cash is a Visa card that spends from a self-custodial account, drawing on deposited collateral or on a borrow against it. Its accounts run on Scroll and hold assets bridged from Ethereum.
Rain
Rain is a card issuing API that lets companies launch stablecoin-backed cards, with spending settled from the holder’s own wallet rather than a prefunded float. It supports Ethereum, Base, Solana and Polygon.
KAST
KAST is a stablecoin account with Visa cards that spends balances held in $USDC and $USDT and pays cashback on purchases. It takes deposits on Solana, Ethereum and other major chains.
Holyheld
Holyheld is a Swiss payments account for companies, with a self-custodial Mastercard, stablecoin off-ramps and named USD and EUR accounts. It covers Ethereum, Base, Arbitrum, Optimism, Polygon and Solana.
Bridge
Bridge is a stablecoin API from Stripe for converting between fiat and stablecoins, issuing stablecoins and running payouts. It settles on Ethereum, Solana, Base and Polygon.
MoonPay
MoonPay is a fiat on-ramp that enables web and mobile developers to let their users purchase virtual currencies using credit card.
Transak
Transak is a simple and compliant way for customers to buy and sell crypto assets with a bank transfer.
Krak
Krak is Kraken’s payments app with a Visa debit card in the US, issued by Lead Bank, and a Mastercard in the UK and EEA. Card spending sells crypto held in Kraken custody and pays cashback in dollars or bitcoin.
BitPay
BitPay processes crypto payments for merchants with invoices, hosted checkout and settlement in fiat, and issues a prepaid card for spending balances. It supports Bitcoin, Ethereum, Polygon and Solana.
Sphere
Sphere is a stablecoin payments platform for businesses, with on and off ramps, cross-border payouts and an embedded ramp widget. It settles on Solana, Ethereum and Base.
Strike
Strike is a Bitcoin payments app for buying, sending and receiving $BTC over the Lightning Network, with cross-border transfers that pay out in local currency.
Superfluid
Superfluid is a novel crypto asset streaming protocol that enables transformative web3 money experiences like salary and subscription streaming, real-time investing, and more – all on-chain
Request
Request is a decentralized network built on top of Ethereum, which allows anyone, anywhere to request, validate and execute payments. How Request Enabling Blockchain-based Invoices? Interview with Request co-founder Christophe Lassuyt.
Lightning Network
Lightning Network is a decentralized network using smart contract functionality in the blockchain to enable instant payments across a network of participants.