1inch Network was born at ETHGlobal New York 2019 hackathon, created by Sergej Kunz and Anton Bukov. The project solved a real problem: with dozens of DEXs offering different prices for the same token swap, how do you ensure you’re getting the best deal? 1inch aggregates prices across multiple DEXs and routes trades through the optimal path — sometimes splitting a single trade across multiple exchanges to minimize slippage and maximize returns.
The aggregator model proved enormously valuable. Instead of a user manually checking Uniswap, SushiSwap, Balancer, and Curve for the best ETH/USDC price, 1inch checks them all (and dozens more) in milliseconds and routes the trade for optimal execution. For large trades, the difference can be significant — 1inch’s routing engine might split a $100,000 swap across three DEXs to reduce price impact.
1inch expanded beyond aggregation into its own products: Limit Order Protocol (offering limit orders on DEXs, which typically only support market orders), 1inch Fusion (an intent-based trading system where professional market makers called “resolvers” compete to fill user orders at the best price), and deployment across 12+ chains. The 1INCH token launched via an airdrop in December 2020, rewarding early users of the platform.
By 2024, 1inch processed billions in monthly trading volume, making it one of the most-used DeFi applications. The aggregator category expanded to include competitors like Paraswap, OpenOcean, and KyberSwap, but 1inch maintained its position as the category leader. The fundamental insight — that fragmented liquidity across DEXs creates an aggregation opportunity — only grows more valuable as the number of chains and DEXs multiplies. Every new chain with new DEXs is another venue for 1inch to find better prices.
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