Uniswap expands liquidity layer to Arc network

Uniswap is bringing its entire trading stack to Arc, the Layer-1 blockchain built by Circle to serve as a dedicated settlement layer for stablecoins. The deployment includes Uniswap’s v4 automated market maker, liquidity pools, swap routing, and a full developer SDK and API, essentially giving Arc a turnkey DeFi backbone from day one. The integration was first announced on June 15, 2026, with infrastructure going live alongside Arc’s public mainnet launch on September 16, 2026. For a blockchain whose entire thesis is “stablecoins, but better,” landing the protocol responsible for $4.4 trillion in all-time trading volume is a strong opening move. What Arc is building and why Uniswap matters Arc is Circle’s answer to a question the industry has been circling (no pun intended) for years: what if a blockchain was designed from the ground up to optimize stablecoin transactions? Rather than treating stablecoins as just another token on a general-purpose chain, Arc makes them the native asset class, supporting direct 1:1 swaps between major stablecoins like USDC, USDS, and DAI. Circle laid the groundwork in late 2025, launching a public testnet in October of that year. Over 100 partners p...