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Uniswap is a decentralized exchange (DEX) which first introduced the automated market maker (AMM) model. Unlike with an order book, traders are provided with constant liquidity thanks to the “constant product” formula. The V2 version was first based on Ethereum, before branching out to other blockchains that support ERC-20 tokens.
While the V1 version of Uniswap only supported swapping ETH-ERC-20 token pairs, the V2 version did away with this bridging problem and introduced flash swaps. These allowed users to swap between different ERC-20 tokens without incurring too much slippage. It also introduced protocol fees, which contributed to the platform's ongoing development. Furthermore, the V2 version began using wrapped Ether over native Ether for its core contracts.
The exchange’s popularity gave birth to a V3 version with concentrated liquidity and more flexible fees, which improved the user experience for traders and liquidity providers alike.
Hayden Adams, a former mechanical engineer at Siemens and Stony Brook University graduate, founded the platform in November 2018. The company behind the DEX raised a seed round from Paradigm and $11 million in a Series A round led by Andreessen Horowitz.
Uniswap’s V1 version was a proof-of-concept first launched in November 2018, and later improved with the introduction of the V2 version in August 2020. The V3 version in May 2021 marks the current final iteration of the exchange.
Uniswap Labs, the company behind the decentralized exchange, is headquartered in New York City.
As of July 2022, Uniswap has banned users from 10 countries that are sanctioned by the U.S. government, including Belarus, Cuba, Iran, North Korea, Syria, Côte d'Ivoire, Liberia, Sudan, Zimbabwe, Iraq and Iran.
As a permissionless decentralized exchange, tokens can be freely listed by anyone providing liquidity to trade them. The most liquid tokens at the time of writing include stablecoins and wrapped tokens like USDC, Wrapped BTC, wETH and DAI.
The exchange’s V2 version charges 0.3% per token swap. 0.05% goes to the protocol and 0.25% is allocated to liquidity providers.
Uniswap V2 does not offer leverage or margin trading.
