1inch went live on Circle's Arc mainnet on its opening day, offering decentralized swaps and access to the Aqua liquidity protocol. The deployment marks the first major trading infrastructure to launch alongside Arc, Circle's economic operating system that began operations on September 16.
Arc is Circle's Layer 1 blockchain designed to run stablecoins and financial infrastructure natively. 1inch's presence at launch extends Arc's trading surface beyond simple token transfers, giving users the ability to execute swaps and route liquidity through Aqua on day one. Circle has positioned Arc as an alternative settlement layer for digital assets with integrated economic tooling.
1inch operates as a decentralized exchange aggregator, splitting user orders across multiple liquidity sources to optimize execution prices. The protocol also developed Aqua, a concentrated liquidity protocol similar to Uniswap's Concentrated Liquidity Market Maker model. By deploying both its swap router and Aqua simultaneously on Arc, 1inch provides users with two liquidity venues from inception.

Circle's Arc launch follows months of testnet development and marks a shift in how the stablecoin issuer is presenting its blockchain infrastructure. Rather than positioning Arc as a standalone settlement chain, Circle is emphasizing its role as an operating system that hosts financial applications at runtime. Other protocols and trading venues will likely follow 1inch's deployment in coming weeks.
1inch's move to Arc adds to the protocol's multi-chain footprint, which already spans Ethereum, Optimism, Arbitrum, Avalanche, Polygon, Base, Blast and Gnosis. The protocol generated over $200 billion in cumulative trading volume across these chains before Arc's launch, according to public aggregator data. A blue-chip aggregator launching on Arc at inception demonstrates the network's ability to attract production infrastructure from day one.
If 1inch processes material swap volume on Arc within the next 90 days, the network will have moved beyond stablecoin transfers and redemptions into active trading infrastructure.