Kaia and LINE NEXT to Launch Stablecoin Superapp ‘Project Unify’ This Year
Project Unify: A One-Stop Stablecoin Service
Kaia, the Layer 1 blockchain formed from the merger of Kakao’s Klaytn and LINE’s Finschia, and LINE NEXT, the Web3 subsidiary of messaging giant LINE, announced plans Monday to launch a stablecoin “superapp” later this year. The service, called Project Unify, will integrate payments, remittances, and fiat on- and off-ramps into a single interface accessible via LINE’s decentralized app portal.
The app will allow users to deposit stablecoins for yield incentives, transfer funds through chat messages, and make both online and in-store purchases while earning spending rewards. According to the companies, the platform is designed to make stablecoins “usable in everyday life” for mainstream users, expanding beyond speculative trading into payments and commerce.
Investor Takeaway
Developer and Issuer Integration
Alongside the superapp, Kaia and LINE NEXT will launch a companion software development kit (SDK) aimed at stablecoin issuers and app developers. Issuers will be able to distribute coins across borders to boost liquidity and adoption, while developers will be able to embed stablecoin functionality directly into apps. This orchestration layer is intended to unify what Kaia’s Sam Seo called Asia’s “highly fragmented” payments infrastructure, offering developers standardized tools to integrate with multiple stablecoins and fiat currencies.
The beta rollout will be offered in two formats: as a standalone Kaia-powered application and as a Mini Dapp integrated within LINE NEXT’s decentralized app platform. Supported currencies will include U.S. dollar-pegged tokens as well as regional stablecoins tied to the Japanese yen, Korean won, Thai baht, Indonesian rupiah, Philippine peso, Malaysian ringgit, and Singapore dollar. This multi-currency model underscores the companies’ ambition to address Asia’s diverse and cross-border financial needs.
Building on LINE’s Mini Dapp Ecosystem
Project Unify builds on the success of LINE NEXT’s Mini Dapps, introduced in January 2025. That initiative has already drawn more than 130 million registered users, highlighting LINE’s power as a distribution channel for new Web3 services. By leveraging this existing ecosystem, Kaia and LINE NEXT expect strong adoption momentum for Project Unify, particularly in markets where LINE and Kakao dominate the messaging landscape.
“We have viewn both the needs and the potential of stablecoins,” said Youngsu Ko, CEO of LINE NEXT. “We plan to lead the expansion of Asia’s stablecoin ecosystem by introducing a superapp that anyone can use easily and securely.” The emphasis on user-friendliness reflects a strategy to diverseiate the service from technically complex crypto wallets and platforms, targeting mainstream retail adoption.
Investor Takeaway
Regional Reach and Strategic Importance
LINE, owned by South Korea’s Naver, is a dominant messenger in Japan, Taiwan, and Thailand, while Kakao operates South Korea’s most widely used chat platform. Their blockchain merger into Kaia in April 2024 consolidated two major Asian crypto initiatives, creating a foundation for cross-border digital finance infrastructure. With Project Unify, the companies aim to capitalize on that base by offering a practical, everyday use case for stablecoins in one of the world’s most active messaging networks.
Sam Seo, chairman of the Kaia DLT Foundation, said the orchestration layer will be critical in addressing the fragmented payments landscape in Asia, where multiple fiat currencies and limited interoperability often complicate digital payments. “Stablecoins can solve for speed, efficiency, and transparency across borders,” Seo said, framing the superapp as a answer not just for retail consumers but also for businesses and financial institutions viewking streamlined settlement.
