Polygon announced the integration of Solana into its Open Money Stack payments infrastructure on Oct. 29, 2026. The integration matters because companies can use one API to manage the full stablecoin payment cycle, from bank or card deposits to balances and payouts.

Businesses will be able to accept bank transfers, card payments, cash and cryptocurrencies, convert funds into digital assets, and pay recipients in fiat currency or cryptocurrency, Polygon said in its announcement. The system is intended to remove the need for companies to integrate multiple payment services and blockchains independently.

Polygon said stablecoins can move around the clock, while traditional banks are not always available for transactions at night or on weekends. Open Money Stack is designed to connect blockchain payments with traditional financial infrastructure, allowing funds to reach bank accounts and cards or be paid out in cash.

How the Solana integration works

Companies building products on Solana will be able to use Open Money Stack to accept account deposits through bank transfers, cards, cash or cryptocurrency. The service will support converting dollars into stablecoins on Solana and converting those assets back into dollars.

Businesses can hold funds in custodial or embedded Solana wallets. The infrastructure can also route assets among Solana, Polygon, TRON and EVM-compatible blockchains, while payouts can be sent to bank accounts, cards or cryptocurrency wallets, or provided in cash.

The platform supports USDC, USDT, PYUSD, SOL and wrapped SOL. According to Polygon, it can process transfers involving different assets and networks within a single transaction. For example, an application could accept USDC from an Ethereum wallet, convert the funds and settle in SOL for a Solana user.

The integration also includes programmable accounts and embedded Solana wallets. Businesses will be able to manage those wallets through the same API used for EVM wallets.

Target users and payment applications

Polygon is positioning Open Money Stack for fintech companies, payment applications, marketplaces and other platforms that use Solana and want to integrate fiat and stablecoin payments without becoming banks or money-transfer operators themselves.

A platform that pays content creators, for example, could accept card payments, convert the funds into stablecoins on Solana and transfer them to recipients, who could then withdraw the money to a bank account. Polygon said a similar arrangement could support international settlements between marketplace buyers and sellers.

According to Polygon, the payment infrastructure uses fiat on- and off-ramp mechanisms backed by money transmitter licenses in 48 U.S. states.

Businesses do not have to use every Open Money Stack component, Polygon said. Developers can connect only the functions they need and combine them with their own wallets, compliance systems and accounting tools.

Polygon also plans to add support for other blockchains. The company said Open Money Stack is intended to let businesses build products on their preferred networks while using a single infrastructure for custody, transfers and payouts.

Polygon launched private stablecoin payments through Hinkal in May 2026.

Source: Incrypted