Kaia and LINE Launch Stablecoin Super App: Revolutionizing Cross-Border Payments in Asia

On September 22, 2025, Kaia and LINE announced Project Unify, a Kaia LINE stablecoin super app for cross-border payments, set to launch on LINE’s DApp Portal later this year. The app integrates stablecoins in major Asian currencies for remittances, payments, and rewards, with an SDK for issuers and developers. This Kaia LINE stablecoin super app aims to unify Asia’s fragmented payment infrastructure, fostering financial inclusion in a $3.5 trillion cryptocurrency market. This article covers the launch details, features, partnerships, and implications.

Kaia LINE Stablecoin Super App Overview

The Kaia LINE stablecoin super app, Project Unify, is a collaborative effort between Kaia (a Layer 1 blockchain from Kakao’s Klaytn and LINE’s Finschia merger) and LINE NEXT (LINE’s Web3 arm). It combines consumer payments, remittances, and on/off-ramps into one interface, supporting U.S. dollar and local currencies like Japanese yen, Thai baht, Korean won, Indonesian rupiah, Philippine peso, Malaysian ringgit, and Singapore dollar. The Kaia LINE stablecoin super app will debut as a Kaia-powered standalone service and a Mini DApp by LINE NEXT, with beta testing later this year.

• Partners: Kaia and LINE NEXT.
• Launch: On LINE’s DApp Portal, beta later 2025.
• Currencies: USD and major Asian fiat.

Key Features and Functionality

The Kaia LINE stablecoin super app allows users to deposit stablecoins for real-time incentives, transfer funds via messages, and make global payments with rewards. A companion SDK enables stablecoin issuers to distribute cross-border and developers to embed features, building liquidity. This Kaia LINE stablecoin super app addresses Asia’s fragmented payments, offering easy, safe use for anyone.

• Deposits: Earn incentives on stablecoins.
• Transfers: Message-based remittances.
• Payments: Online/in-store with rewards.
• SDK: For issuers and app integration.

Partnerships and Ecosystem Impact

Kaia and LINE NEXT’s partnership leverages LINE’s dominance in Japan, Taiwan, and Thailand, and Kaia’s blockchain from the Klaytn-Finschia merger in April 2024. The Kaia LINE stablecoin super app builds on Mini DApps’ 130 million users since January 2025. Youngsu Ko, CEO of LINE NEXT, said: “We plan to lead the expansion of Asia’s stablecoin ecosystem by introducing a superapp that anyone can use easily and safely.” Sam Seo, Kaia DLT Foundation chairman, added: “Kaia aims to consolidate [Asia’s payment infrastructure] and drive cross-border financial inclusion.”

• User base: 130 million from Mini DApps.
• Quotes: Ko on ecosystem expansion, Seo on inclusion.

Market Implications

The Kaia LINE stablecoin super app could transform Asia’s payments in a $3.5 trillion cryptocurrency market, enhancing stablecoin utility and adoption. It positions Kaia and LINE as leaders in Web3, potentially competing with global platforms amid regulatory advancements.

• Market: $3.5 trillion crypto ecosystem.
• Potential: Boost stablecoin adoption in Asia.

Summary

The Kaia LINE stablecoin super app, Project Unify, launches later 2025 on LINE’s DApp Portal, integrating payments and remittances with an SDK for ecosystem growth. In a $3.5 trillion market, it drives inclusion. For tips, explore LINE’s Mini DApps for early access and monitor stablecoin trends for investment opportunities. Track Kaia updates for Kaia LINE stablecoin super app developments.