Uniswap v3 (Ethereum)

## What Is Uniswap?
Uniswap is one of the most popular cryptocurrency [decentralized exchanges](https://coinmarketcap.com/alexandria/glossary/decentralized-exchange-dex) (DEXs), launching in November 2018. It pioneered the [automated market maker](https://coinmarketcap.com/alexandria/glossary/automated-market-maker-amm) (AMM) model, instead of the traditional order book-based used by exchanges. Uniswap runs on the Ethereum blockchain and uses a number of [smart contracts](https://coinmarketcap.com/alexandria/glossary/smart-contract) to securely swap [ERC-20](https://coinmarketcap.com/alexandria/glossary/erc-20) tokens between users.
The decentralized aspect of the protocol means that there is no single centralized authority that manages and runs the exchange — instead, swaps are done in a [peer-to-peer](https://coinmarketcap.com/alexandria/glossary/peer-to-peer-p2p) (P2P) manner. Moreover, Uniswap strives to solve the [liquidity](https://coinmarketcap.com/alexandria/glossary/liquidity) problem inherent in other exchanges. Uniswap V3 is the 3rd edition of the protocol fitted with updates to improve compensation and provide greater control and flexibility for individual LPs. Uniswap V3 supports over 46.5% of the total DEX trading volume and the protocol reached a cumulative lifetime trading volume of $1 trillion in May 2022.
## Who Is the Founder of Uniswap V3
Uniswap was founded by Hayden Adams, a graduate of Stony Brook University and a former mechanical engineer at Siemens. Inspired by a blog and Reddit post by Vitalik Buterin, Adams received a grant from the Ethereum Foundation and launched the protocol in November 2018. Uniswap Labs raised a seed round from Paradigm and, in August 2020, received $11 million in its Series A round led by ​​Andreessen Horowitz.
Uniswap V3 launched in May of 2021, almost 2.5 years after the first version was released, and a year after Uniswap V2 was launched.
## Where Is Uniswap Located?
The Uniswap protocol and Uniswap interface were developed by Uniswap Labs, which is located in New York City. As a[ decentralized finance](https://coinmarketcap.com/alexandria/glossary/defi) (DeFi) protocol, it can be used worldwide by anyone with internet access. However, there are some restrictions depending on what country you are from. As of July 2022, Uniswap has banned 10 countries from its protocol. The list of countries includes Belarus, Cuba, Iran, North Korea, Syria, Côte D'ivoire, Liberia, Sudan, Zimbabwe, Iraq and Iran.
## What Coins Can Be Traded on Uniswap?
As a decentralized peer-to-peer protocol, anyone can list a token on Uniswap. The most popular trading pairs at the time of writing include [USDC](https://coinmarketcap.com/currencies/usd-coin/), [Wrapped BTC](https://coinmarketcap.com/currencies/wrapped-bitcoin/), [WETH](https://coinmarketcap.com/currencies/weth/) and [DAI](https://coinmarketcap.com/currencies/multi-collateral-dai/).
## How Much Are Uniswap V3 Fees?
Uniswap V3 liquidity providers can initially create liquidity pools at three fee levels: 0.05%, 0.30% and 1%. More fee levels may be added through the UNI governance proposal.
## Is It Possible To Use Leverage or Margin Trading on Uniswap?
Uniswap V3 does not offer leverage or margin trading directly on its platform.