Polygon Labs has expanded its Open Money Stack platform to the Solana network.
Businesses can now use a single integration to bring money in from bank accounts, move crypto across networks and pay customers and suppliers. Among the first customers adopting Solana through Open Money Stack is Kira, a service that connects U.S. banking accounts with stablecoins for cross-border businesses.
Polygon Open Money Stack is integrated infrastructure for companies building stablecoin-powered payment products. Through a single API, businesses can access fiat on- and off-ramps, programmable accounts, embedded wallets, custody, settlement, currency conversion, payouts and cross-chain capabilities.
The stack is designed to connect the infrastructure surrounding a stablecoin transaction: getting money onchain, holding and moving it securely, converting it into the currency a recipient needs and delivering it into the existing financial system. Companies can use the full stack or combine individual components with their existing providers.
For a business, sending crypto is only part of making a payment. Getting money from a bank account into a wallet, converting it and getting it back into the recipient’s bank account often requires several providers, each with its integration and processes. Open Money Stack brings those steps together. A company building a product on Solana can connect funding, accounts, wallets, cross-chain routing and payouts through one technical connection and one commercial relationship.
“Every bank and fintech that wants to use crypto faces the same problem: connecting them to the accounts and payment systems its customers already use,” said Sandeep Nailwal, co-founder and CEO of Polygon Foundation. “Open Money Stack brings those connections together. Adding Solana means more businesses can build on the network their customers choose and use Polygon to handle the money movement around it.”
Through Open Money Stack, companies can connect supported funding routes (bank, card, cash and crypto) to a Solana product, create customer accounts and wallets, move funds across networks (including Polygon, Ethereum, TRON and other EVM chains) and connect crypto balances to bank, card, cash or wallet payout routes.
A remittance provider, for example, could accept dollars from a sender’s bank account, deliver USDC on Solana and connect the recipient to a supported bank payout. A marketplace could receive stablecoin payments on Solana and pay sellers into wallets or through local-currency payout routes.
“Solana has processed more than $5 trillion in stablecoin volume in 2026 alone. As that activity grows, connecting Solana to bank accounts, wallets and global payout networks allows businesses to deliver stablecoin payments to more customers and markets,” said Vibhu Norby, Chief Product Officer at Solana Foundation. “Polygon Open Money Stack provides another path for businesses to access these capabilities, complementing the infrastructure and payment solutions already available across the Solana ecosystem.”
Kira is using Open Money Stack to expand stablecoin options for fintechs, OTC desks and import brokers. Its clients can open U.S. dollar accounts, send and receive payments through supported bank rails, pay suppliers abroad and move between stablecoins and dollars.
“We already use Solana to move stablecoins, and working with Polygon helps us turn those transfers into dollars in our clients’ bank accounts when they need to pay suppliers,” said Edrizio De La Cruz, CEO and co-founder of Kira.
The Solana expansion follows Polygon Open Money Stack’s addition of TRON support and Polygon’s completed acquisition of Coinme. Polygon’s U.S. payments business supports operations across 48 states. Polygon Chain, a settlement rail within Open Money Stack, has surpassed $3 trillion in cumulative stablecoin transfer volume.
