Uniswap integrates Sony’s layer-2 Soneium to enhance trading experience

Uniswap has added support for Soneium, a new layer-2 blockchain built by Sony Block Solutions and Startale Labs. 

Uniswap Labs announced the update in a blog post on May 6. The network is now operational on the Uniswap (UNI) wallet and web app, enabling users to bridge, trade, and supply liquidity using well-known tools. 

With a focus on digital entertainment, Soneium’s mainnet debuted in January 2025. The network seeks to facilitate onchain connections between creators and fans while safeguarding intellectual property. So far, it has hosted NFTs for the popular anime Solo Leveling, distributed digital collectibles at concerts, and supported event ticketing for Japanese idol groups, among other things.

Sony’s goal is to bring its creative ecosystem to the blockchain. Jun Watanabe, Chairman of Sony Block Solutions Labs, said the company aims to “build a world-class blockchain for creators, fans, and developers.” He added that Uniswap’s tools will help Soneium users interact more easily with web3.

Startale chief executive officer Sota Watanabe said the partnership makes it easier for people to join the onchain economy, and that Uniswap gives Soneium a strong way to reach global users.

“At Startale, we’re building blockchain infrastructure that empowers global innovation as part of Sony Block Solutions Labs — and Uniswap Labs’ reach and credibility give Soneium a strong distribution layer. By combining Uniswap Labs’ leading DEX infrastructure with the scalable Layer-2 network, we’re making it easier for users to participate in a seamless, creator-led economy.”

— Sota Watanabe, CEO of Startale Group

Uniswap Labs, on the other hand, noted that the move supports its mission of creating open, permissionless markets. When assets are locked into separate platforms, creators often struggle to get the most value from their work. With Uniswap’s infrastructure, they can share and earn across the entire ecosystem.

The integration comes as Uniswap continues on its positive growth trajectory. Its own layer-2 chain, Unichain, has processed $5.7 billion in trades since its launch, as per DEX Analytics data. Uniswap has also launched liquidity rewards and recently crossed $3 trillion in total swap volume.

In another important development, in February, the Securities and Exchange Commission ended its investigation into Uniswap with no enforcement, opening the door to deeper entry into the U.S. market.