Rain

What is Rain?

Rain is a stablecoin payment infrastructure company. It builds the card-issuing rails that let fintechs, neobanks, and platforms launch their own branded Visa cards backed by stablecoins. Founded in 2021 by Farooq Malik and Charles Naut, the company operates as a Visa principal member, which means it issues cards directly without relying on a sponsor bank in between.

The basic problem Rain solves is simple. Hundreds of billions of dollars sit in stablecoins, mostly idle, because spending them in the real world still requires selling, bridging, or transferring through traditional bank accounts. Rain skips most of that. When a cardholder pays at a merchant, the stablecoin balance held in a smart contract settles the transaction with Visa directly. The merchant receives a normal Visa payment. The cardholder spends from their stablecoin balance. No batch processing, no weekend delays, no bank in the middle holding things up.

Settlement runs continuously, every day of the year, because stablecoin rails do not follow bank holidays. That alone cuts the collateral that card programs typically need to hold in reserve, which frees up working capital for the companies running those programs. Rain supports major networks including Solana, Tron, and Stellar, so partner platforms can connect to whichever chain their users already hold assets on.

The company does not compete with consumer wallets or crypto exchanges. It gives other products the infrastructure to offer stablecoin-linked Visa cards without building a payments operation from scratch. Think of it as the backend that other apps sit on top of.

Who uses it?

Most individual users never sign up with Rain directly. You access a Rain-powered card through a partner app, a neobank, a DeFi platform, or a corporate spend tool that has already built on top of their infrastructure. If you see a Visa card linked to USDC or another stablecoin inside an app you use, there is a reasonable chance Rain is running the settlement layer underneath it.

Businesses and developers are the primary audience Rain targets. If you run a fintech product, a payroll system, or a marketplace that already touches stablecoins, Rain lets you add card spending as a feature without becoming a payments company yourself. Their API-focused setup means a team can launch a branded card program in weeks rather than the months a traditional issuer program typically requires.

Gig platforms and remittance services use Rain to pay workers across borders instantly. Corporate teams use it to issue expense cards that draw directly from treasury stablecoin holdings instead of wiring money to a card account first. Neobanks in Latin America and Asia-Pacific have adopted it to give users a way to spend digital dollars locally without extra conversion steps.

Western Union partnered with Rain to help power stablecoin-to-cash flows at retail locations, which gives you a sense of the scale the infrastructure is reaching. Programs running on Rain grew thirty times in active cards, and annualized payment volume crossed three billion dollars in one reported stretch. That kind of adoption reflects real demand from platforms and their users, not just early experiments.

How it works

When you load stablecoins into a wallet or account linked to a Rain-powered card, those funds sit in a smart contract until you actually spend them. At the point of purchase, Rain underwrites a short-term line of credit against that collateral so the merchant gets paid immediately through standard Visa rails. The stablecoin balance then settles the transaction onchain in real time, and Rain handles the conversion and final settlement with Visa using assets like USDC.

Traditional card programs deal with batch settlements that run on bank schedules, which means funds can sit in transit over weekends or holidays. Because Rain settles directly with Visa in stablecoins, that process runs around the clock. That always-on settlement reduces the idle collateral card issuers normally need to keep parked to cover timing gaps, which makes the economics better for the companies building on top of Rain and, in theory, for the users those companies serve.

For developers and businesses, integration happens through Rain's API. Compliance and KYC requirements still apply, but Rain handles the Visa principal membership side, so partners do not need to become licensed card issuers themselves. That is a significant reduction in regulatory lift, especially for startups or platforms expanding into new regions.

The cards themselves work wherever Visa is accepted, which covers over 150 million merchants globally. Physical and virtual card options are both available depending on what the partner program offers. Multi-chain support means platforms are not forced to pick a single blockchain or ask their users to move assets before spending. You spend from what you already hold, on the chain you already use, at any Visa terminal in the world.