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Case Study / Payment Rails

Top 5 Korean Card Company

Building Korea's first enterprise-grade stablecoin payment rails on Solana

< 1s

Settlement Time

10M+

Potential Reach

3

Months

Solana

Preferred Partner

Client
Top 5 Korean Card Company (NDA)

A leading credit card company in Korea with over 10 million cardholders

Industry
Financial Services / Payments

Credit card, payment processing, fintech

Technology
Solana Blockchain

Stablecoin payment rails, QR-code payments


The Challenge

Preparing for the KRW Stablecoin Era

A top 5 Korean card company needed to implement an internal KRW-based stablecoin payment rail using Solana. With the anticipated launch of regulated KRW stablecoins, they wanted to be ahead of the competition.

The key challenges included:

  • Building a compliant payment infrastructure for Korean regulations
  • Achieving sub-second settlement times
  • Creating a seamless QR-code payment experience
  • Integrating with existing card payment systems
The Solution

Solana-Powered Payment Rails

Nodeinfra built a QR-code based wallet-to-wallet stablecoin payment rail and prototype application on Solana. As Solana Foundation's preferred technical partner for stablecoin projects in Korea, we delivered:

  • Custom wallet infrastructure for enterprise use
  • QR-code payment flow with real-time settlement
  • Compliance-ready architecture for Korean regulations
  • API integration layer for existing payment systems
Project Timeline

3-Month PoC Journey

Phase 1
Discovery & Planning

Duration: 2 weeks

Understanding client requirements, compliance needs, and technical architecture planning.

Phase 2
Development

Duration: 8 weeks

Building QR-code based wallet-to-wallet payment system on Solana blockchain.

Phase 3
Testing & Integration

Duration: 2 weeks

Comprehensive testing and integration with existing card payment infrastructure.

The Results

Successful PoC Delivery

The proof-of-concept was successfully delivered within 3 months, demonstrating sub-second settlement times and seamless QR-code payment experience.

Nodeinfra was selected as Solana Foundation's preferred technical partner for stablecoin payment projects in Korea, positioning both companies for the upcoming KRW stablecoin market.

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Key Achievements

Settlement Time

< 1 second

🏢

Client Scale

Top 5 Card Company

🏆

Partner Status

Solana Preferred Partner

📅

Project Duration

3 months

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Let's discuss how we can help you prepare for the stablecoin era.

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