Polygon Labs added Solana to its Open Money Stack on Thursday, giving Solana-based businesses a single integration to accept a bank deposit, hold the funds in stablecoins, and pay out to a US bank account. The dollar leg of the service is backed by licenses covering 48 US states.

The stack converts fiat into stablecoins on Solana, keeps funds in embedded or custodial wallets, and pays out to bank accounts, cards, cash, or wallets. Each client receives a virtual account, giving incoming bank transfers an address to land in. For developers, the single integration consolidates on-ramps, custody, routing, and payouts, reducing the need to stitch together separate providers for each step.

According to a blog post published by Polygon, the stack moves USDC, USDT, PYUSD, SOL, and wrapped SOL across Solana, TRON, and EVM chains within a single transaction. An application can, for example, take USDC from an Ethereum wallet and settle it in SOL to a Solana user. TRON was added to the stack earlier in October.

The state licenses stem from Polygon's acquisition of Coinme, which closed with 37 state money-transmitter licenses and 11 exemptions across 48 US states in total, as Cryptopolitan reported on October 14. The deal also brought Polygon a money services business registration with the Financial Crimes Enforcement Network, the US Treasury bureau that registers money services businesses and oversees their anti-money-laundering compliance. Money-transmitter licenses are the state-level authorizations companies generally need in order to receive and transmit customer funds, which is what makes the 48-state footprint the foundation of the payout leg.

Kira among the first firms to integrate

Kira is among the first companies to use the Solana integration. The firm converts clients between dollars and stablecoins, transmits payments over banking rails, and pays overseas suppliers.

"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 Kira CEO Edrizio De La Cruz.

Vibhu Norby, chief product officer at the Solana Foundation, said the network processed more than $5.5 trillion in stablecoin volume in 2026, and described Polygon's stack as another path for businesses alongside payment tools already built on Solana. Polygon, for its part, says Solana processes over $2 trillion in stablecoin volume every quarter.

The launch came about a week after Solana activated its Alpenglow consensus upgrade, which cut finality from roughly 12.8 seconds to 150 milliseconds. Finality — the point at which a transaction becomes irreversible — is a central metric for payment systems, since providers depend on settled funds before releasing dollars to a bank account.

Solana marks the latest step in a pivot Polygon has carried out across 2026. In January, a spokesperson said, "Polygon Labs is no longer a scaling company, but a blockchain-based payments company."

Polymarket, which accounted for more than half of Polygon's transactions in March 2026, has been developing its own layer-2 network.

Polygon said in January it would acquire smart-wallet provider Sequence and Coinme in deals worth more than $250 million combined. Together, the two acquisitions form the Open Money Stack, which aggregates on- and off-ramps, wallets, cross-chain routing, and settlement under a single API. Co-founder Sandeep Nailwal has branded the strategy a "reverse Stripe" — an allusion to the US payments giant, inverted: rather than a fiat payments platform adding crypto support, Polygon is building from crypto rails out to bank accounts.

Stablecoins now total about $300 billion in supply. Pegged one-to-one to fiat currencies such as the US dollar, they are the medium that payment stacks like Polygon's move between blockchains and bank accounts. Tether's USDT leads the market with more than $180 billion, while Circle's USDC sits at almost $72 billion.