Uniswap Labs has officially launched full support for Ink across its web app, mobile wallet and developer API, enabling users to swap tokens and provide liquidity on Kraken’s Optimistic Rollup. The integration gives traders and liquidity providers access to Uniswap V2, V3 and V4 on Ink, which uses chain ID 57073 and has 1-second block times. Uniswap V3 contracts were deployed on Ink in December 2024 after a governance request for comments, while a December 2025 GitHub issue identified frontend support as necessary for a complete integration. Ink has accumulated hundreds of millions of dollars in total value locked across multiple DeFi protocols, although reported trading volume was $0 over the last 24 hours as users adjusted to the launch. The rollout extends Uniswap’s expansion across layer 2 networks, including Coinbase’s Base and Kraken’s Ink, while governance discussions weigh growth against the operational complexity of supporting more deployments heading into the final months of 2026.