Retail & Merchant Payments

Stablecoin Merchant Acceptance Is Moving Into Production

Shoppers at New York City's Union Square Holiday Market paid for food, gifts, and handmade goods by scanning a QR code through a mobile app. Transactions were authorized in seconds, with settlement finality onchain. Vendors received payment immediately. The checkout experience looked no different from any modern digital payment product.

Several thousand miles away, NHN KCP, South Korea's largest payment gateway provider, conducted a stablecoin payment pilot on Avalanche infrastructure involving 700 participants. The pilot tested online and offline commerce through Payco, one of the country's largest mobile payment platforms, with transactions approved in approximately two seconds.

One deployment took place at a seasonal market in Manhattan. The other involved a payment provider supporting commerce at national scale. Both ran on Avalanche, and together they illustrate a broader shift: stablecoin merchant acceptance is moving from experimentation into production environments.

Why Merchant Acceptance Remains a Challenge

Traditional payment infrastructure provides global reach, but it comes with meaningful costs for merchants. Card acceptance fees typically range between 2% and 3% of every transaction. For a merchant processing $5 million annually, that can amount to up to $150,000 in fees before chargebacks, disputes, or cross-border costs are factored in.

Settlement introduces another layer of friction. Card transactions often take 1 to 3 business days to clear, requiring merchants to wait before accessing funds from completed sales. International commerce amplifies these challenges through additional FX conversion costs, payment intermediaries, and settlement complexity.

As stablecoin payments mature, two models are emerging. One extends existing payment networks by allowing consumers to spend stablecoins through familiar card and checkout experiences. The other uses stablecoins as the settlement layer itself, reducing the costs and delays associated with traditional payment rails. Avalanche supports both approaches, from consumer-facing payment products to next-generation merchant settlement infrastructure.

The demand for alternatives is growing. Global crypto card spending increased from roughly $100 million per month in early 2023 to approximately $1.5 billion per month by late 2025, representing nearly $18 billion in annualized volume. The question for payment infrastructure is no longer whether consumers are willing to spend digital assets, but whether merchant acceptance can support it at scale.

USDC Checkout in Production

The Urbanspace deployment at New York City's Union Square Holiday Market runs on infrastructure provided by Rain, a card issuing and payment platform operating as a Visa principal member. Shoppers download the Urbanspace app, create an account, and pay merchants by scanning QR codes. Payments settle in USDC on Avalanche while merchants receive funds through a familiar checkout experience.

The process requires no separate crypto workflow for merchants and no specialized blockchain knowledge from customers. The result is a stablecoin checkout experience embedded directly into existing commerce flows rather than operating alongside them, demonstrating how merchant acceptance can function inside everyday retail environments without requiring businesses to redesign the customer experience.

Rain and the Stablecoin Card Infrastructure Stack

Rain provides much of the infrastructure behind these experiences. As a Visa principal member, Rain sponsors card programs directly and connects stablecoin-based payments to Visa's global merchant acceptance network, which spans more than 150 million merchants worldwide. Customers spend stablecoins, while merchants continue to receive local currency through existing payment workflows.

Through a single integration, Rain supports card issuance, wallet creation, stablecoin settlement on Avalanche, and fiat conversion. For merchants and developers, the complexity of settlement, conversion, and compliance stays behind the scenes while the payment experience remains familiar.

From Merchant Checkout to National Payment Infrastructure

NHN KCP highlights how the same infrastructure can support national-scale payment systems. As South Korea's largest payment gateway, NHN KCP processes payments across both online and offline commerce. 

Unlike card-routed approaches, NHN KCP's pilot ran on a payment-focused Avalanche L1 built in partnership with Ava Labs: a dedicated settlement layer optimized for payment authorization and merchant settlement, rather than a payment bolted onto existing rails. This is where the fee and settlement-time advantages described above actually materialize.

NHN KCP has also secured trademarks related to both won-pegged and USD-pegged stablecoins and is developing infrastructure optimized for payment authorization, merchant settlement, and financial services. For the broader payments industry, the significance extends beyond a single pilot. It reflects growing interest from established payment providers exploring stablecoin settlement as part of future retail payment networks.

Government-Issued Stablecoins Reach Merchant Checkout

Wyoming launched the Frontier Stable Token (FRNT), the first stablecoin issued by a U.S. state government. FRNT is initially available on Solana through Kraken, with support for bridging to Avalanche. Through its integration with Rain-issued Visa cards, FRNT can be used anywhere Visa is accepted, demonstrating how government-issued digital dollars can connect to consumer payment experiences through existing merchant and payment infrastructure.

Expanding Access Across Geographies and Payment Models

Beyond merchant checkout and payment gateways, Avalanche is also supporting new forms of cross-border retail payments.

StraitsX has explored a stablecoin-powered payment infrastructure that connects regional payment networks across Southeast Asia, including integrations with consumer platforms such as Grab and Alipay+, under frameworks supported by the Monetary Authority of Singapore. In these models, consumers and merchants continue to transact using familiar payment experiences, while stablecoins are used behind the scenes to facilitate settlement between payment providers. By replacing portions of the correspondent banking process traditionally used for cross-border payments, stablecoin settlement can improve efficiency, reduce costs, and streamline fund flows across regional commerce corridors.

Avalanche ecosystem partners are extending similar capabilities into other markets. Fonbnk enables users across Sub-Saharan Africa to convert prepaid mobile airtime into USDC on Avalanche, creating a pathway into digital dollar payments in regions where traditional card infrastructure remains limited.

Together, these deployments illustrate how stablecoin merchant acceptance is expanding across different regulatory environments, payment networks, and consumer experiences.

What Production Looks Like

Customers still scan QR codes, tap cards, and complete purchases through familiar checkout experiences. Behind those interactions, the settlement infrastructure is beginning to change. The lesson from New York to Seoul is that the winning stablecoin payment products are the ones merchants and customers never notice: settlement infrastructure is becoming invisible, and that invisibility is the product.