Uniswap is the largest decentralised exchange and one of the most important inventions in DeFi. It lets anyone swap tokens straight from their own wallet, with no company holding the funds, using pooled liquidity instead of an order book. UNI is its governance token. This review explains how the automated market maker works, what UNI actually does, the fee-switch debate that drives its value, and how to buy and store it.
What is Uniswap?
Uniswap is the leading decentralised exchange (DEX), launched in 2018 by Hayden Adams. Instead of matching buyers and sellers through an order book, it lets users swap tokens directly from their own wallet against pooled liquidity supplied by other users. There is no central operator holding funds. Trades execute through smart contracts on Ethereum and other EVM chains.
UNI is the protocol’s governance token. It does not power a separate blockchain. Uniswap runs as a set of smart contracts on top of existing networks, and UNI gives holders the right to help govern the protocol.
How the automated market maker works
Uniswap popularised the automated market maker (AMM) model, which is now the backbone of much of DeFi.
- Liquidity pools. Users deposit pairs of tokens into a pool and earn a share of trading fees in return.
- Pricing by formula. Instead of an order book, a mathematical formula sets prices from the ratio of assets in the pool, so trades are always possible as long as there is liquidity.
- Permissionless listing. Anyone can create a market for any token, which made Uniswap the default venue for new and long-tail assets.
Later versions introduced concentrated liquidity, letting providers focus their capital in chosen price ranges for greater efficiency.
How UNI’s tokenomics work
UNI is primarily a governance asset with a capped supply.
| Property | Detail |
|---|---|
| Maximum supply | 1,000,000,000 UNI |
| Primary role | Protocol governance |
| Governance | UNI holders vote on upgrades and treasury use |
| Fee dynamics | A protocol “fee switch” can direct a share of fees, subject to governance |
UNI holders vote on changes to the protocol and on how its large treasury is used.
The fee-switch debate
The single most important question for UNI’s value is the fee switch. Today, trading fees on Uniswap go to liquidity providers, not to UNI holders. Governance has the power to turn on a protocol-level fee that would direct a share of those fees to the protocol or to UNI holders.
Whether and how to activate it is an ongoing, high-stakes governance discussion. Turn it on, and UNI gains a direct claim on real cash flow. Leave it off, and UNI’s value rests mainly on governance rights and speculation. This debate, more than anything else, defines the investment case for UNI.
Pros and cons
Strengths
- The dominant DEX with deep liquidity and a battle-tested AMM design.
- Permissionless, non-custodial trading, so users keep control of their funds.
- A capped supply and a large treasury governed by UNI holders.
Risks
- Value accrual depends on governance decisions like the fee switch, not guaranteed cash flows.
- DEX competition is fierce, and liquidity can migrate quickly.
- Smart-contract and regulatory risk apply to DeFi protocols.
Where to buy and store UNI
UNI is widely listed and can be bought on centralised exchanges like Binance, Coinbase, and Kraken, or swapped on Uniswap itself if you already hold crypto. New to this? See our how to buy crypto guide. After buying:
- Self-custody. Hold UNI in any EVM-compatible wallet such as MetaMask. Our wallets guide helps.
- Participate in governance. Use UNI to vote on or delegate for protocol decisions.
- Hold on exchange. Convenient for traders, but you do not control the private keys.
Note that providing liquidity on Uniswap to earn fees is separate from holding UNI, and carries its own risks such as impermanent loss.
Frequently asked questions
Is Uniswap a cryptocurrency or an exchange? Both, in a sense. Uniswap is a decentralised exchange protocol, and UNI is its governance token. UNI is not a standalone blockchain. The protocol runs on Ethereum and other EVM chains.
What is the Uniswap fee switch? It is governance’s ability to turn on a protocol-level fee that would direct a share of trading fees to the protocol or UNI holders. Whether and how to activate it is an ongoing governance decision that directly affects UNI’s value.
Do I need UNI to use Uniswap? No. You can swap tokens on Uniswap without holding UNI. UNI is only needed to participate in governance.
What is impermanent loss? It is the potential shortfall liquidity providers face when the prices of their pooled tokens diverge, compared with simply holding them. It is a key risk of providing liquidity, separate from holding UNI.
Is Uniswap safe to use? The core protocol is battle-tested and non-custodial, so you keep your keys. The main risks are smart-contract bugs, scam tokens that anyone can list, and ordinary market volatility.