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.
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.