Kaia, a Layer 1 blockchain, and LINE NEXT, the Web3 arm of messaging firm LINE, said on Monday they will roll out Project Unify, a stablecoin superapp that will appear on LINE’s Dapp Portal later this year.
The app will let users deposit stablecoins, earn real-time incentives, send money through chat, and pay online and in stores with rewards. It aims to combine payments, remittances, and on- and off-ramps into one place.
What will the app offer?
The companies plan to offer an SDK so stablecoin issuers can move liquidity across borders and app makers can add stablecoin features. The move targets markets where LINE is active and where payment systems remain split up.
Unify will let people hold stablecoins and receive small incentives as they move funds. Users will be able to send money inside messages.
They can also use stablecoins for online shopping and store purchases and get spending rewards. The app will link on-ramps and off-ramps so cash and crypto flow more smoothly.
The partners said Unify will support stablecoins tied to the U.S. dollar. It will also handle tokens pegged to several major Asian currencies, and that list includes the Japanese yen, Thai baht, Korean won, Indonesian rupiah, Philippine peso, Malaysian ringgit, and Singapore dollar.
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The platform will ship with a software development kit, and that tool is meant to help two groups. First, stablecoin issuers who want to push tokens across borders to find more use. Second, app developers who want to add stablecoin payments inside their products.
Beta rollout and user reach
The companies plan a beta launch later this year, and the service will be available as a standalone Kaia app and as a Mini Dapp run by LINE NEXT.
The Mini Dapp model is already in use. The partners said their Mini Dapps, launched in January 2025, have driven 130 million new registered users so far.
That existing user base may speed adoption of Unify. LINE’s large audience in places like Japan and Southeast Asia gives the project a ready pool of users and merchants to test payments and remittances.
Leadership views
LINE NEXT’s CEO, Youngsu Ko, said the team sees both clear needs and big potential for stablecoins. He said they want to lead the growth of a stablecoin ecosystem in Asia by offering an app that is simple and safe for anyone to use.
Sam Seo, chairman of the Kaia DLT Foundation, said the plan centres on a stablecoin orchestration layer. He noted Asia’s payment systems are fragmented, and Kaia wants to bring them together to boost cross-border access to financial services.
Partners and other industry moves
Reports indicate that Tether launched its USD₮ token on the Kaia blockchain in partnership with LINE NEXT. That move would give a major dollar-linked stablecoin a presence on Kaia’s network.
Separately, LY Corporation issued a statement denying any formal business deal with Soneium tied to Line Next. LY Corporation said no agreement exists and that Soneium was only given permission to refer to Line in its announcement.
The broader tech world is also moving fast on messaging and crypto. Jack Dorsey, the Block CEO, rolled out the beta of Bitchat, a peer-to-peer app that runs over Bluetooth Low Energy mesh networks.
Social media platform X announced XChats on June 1, and that service adds audio and video calls, encrypted chats, disappearing messages, and the ability to send any file type.
What could this mean?
Project Unify ties messaging and payments in one place, and that could speed small cross-border transfers and make stablecoins more useful in daily life. It could also raise fresh questions for regulators and banks about how these flows are tracked and managed.
For issuers and app makers, the SDK could open new paths for building services that use stablecoins. For users, Unify could mean fewer steps to send money or pay at checkout.
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