Kaia, the Layer‑1 blockchain formed in 2024 through the merger of Kakao’s Klaytn and LINE’s Finschia, announced at Korea Blockchain Week that it is developing Project Unify, a stablecoin‑powered “super‑app” that will be integrated into LINE Messenger, which has nearly 200 million monthly active users across Japan, Taiwan, and Thailand.
Kaia published the official announcement on its website and disclosed it to media at KBW 2025.
What the app will offer
According to the Kaia DLT Foundation and LINE NEXT:
- Payments and remittances: including cross‑border transfers directly via LINE chat.
- Yield services: users can deposit stablecoins and earn incentives (“Easy Saver”).
- On‑/off‑ramps: for converting between digital assets and local currencies.
- DApp access: support for more than 100 Web3 apps, including NFTs, games, and DeFi use cases.
The app is scheduled to launch in beta later in 2025, both as a standalone Kaia‑powered service and as a Mini DApp inside LINE Messenger.
Executives’ comments
In the official statement:
“Project Unify is Kaia’s strategic initiative to support Asia’s stablecoin market. A key element will be its orchestration layer, designed to unify fragmented payments infrastructure across the region,” said Dr. Sangmin (Sam) Seo, Chairman of the Kaia DLT Foundation.
“We plan to expand Asia’s stablecoin ecosystem by introducing an all‑in‑one service that anyone can use easily and safely,” added Youngsu Ko, CEO of LINE NEXT.
Regional scope
Project Unify is designed to consolidate multiple regional stablecoins into one framework. The app is planned to support tokens pegged to:
- U.S. dollar
- Japanese yen
- Korean won
- Thai baht
- Indonesian rupiah
- Philippine peso
- Malaysian ringgit
- Singapore dollar
Kaia also confirmed in its August 2025 update that Kakao, a governance member, applied for four trademark filings related to a potential KRW stablecoin (e.g. KRWKaia, KaKRW) with the Korean Intellectual Property Office (KIPO).
Regulatory backdrop
South Korea’s National Assembly is scheduled to deliberate a stablecoin regulation bill in October, according to reporting from Korea Economic Daily. The legislation is expected to define requirements for issuance, reserve management, and whether interest can be paid on won‑pegged stablecoins.
Kaia and LINE NEXT said Unify will adapt to jurisdictional requirements and include compliance features as part of its rollout in Asia.
Why it matters
- Asia’s fragmented networks: National payment systems remain siloed, with expensive and slow cross‑border transfers. Kaia’s orchestration layer aims to address this.
- Consumer reach: Embedding stablecoin tools and Web3 access directly into LINE, one of Asia’s biggest messaging apps, gives Unify immediate distribution.
- Competition: The move reflects a broader “super‑app race,” with Coinbase pursuing a similar model with its Base App in the U.S., though with different priorities (speed, USDC rails, social features).
Roman Zaika
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