List of Decentralised Exchange projects on Optimism (2026)

Uniswap V3 is a decentralized exchange protocol that enables non-custodial token trading through automated liquidity pools. It introduced concentrated liquidity positions, allowing liquidity providers to allocate capital within specific price ranges for improved efficiency compared to traditional AMM models.

Uniswap v4 inherits all of the capital efficiency gains of Uniswap v3, but provides flexibility via hooks and gas optimizations across the entire lifecycle.

Uniswap Protocol is automated market maker through smart contracts, enabling peer-to-peer cryptocurrency trading without intermediaries using liquidity pools and constant product formula.

Fraxswap is an AMM based on Uniswap V2 with time-weighted average market maker orders, used for protocol rebalancing, liquidity provision, and large trustless trades over time.

Meson Protocol is a decentralized cross-chain swap protocol that moves stablecoins and other assets across multiple blockchains using signature-based atomic swaps instead of traditional bridges. Liquidity providers pre-fund pools on destination chains and match user swap requests, with meta-transactions covering gas costs so users only sign to authorize the transfer. The protocol also supports withdrawing assets directly from centralized exchanges to a range of chains and converting between stablecoins and other currencies through partner services. It serves users seeking fast, low-cost transfers between blockchain networks without wrapping assets or relying on custodial bridges.

Curve DEX is an AMM that facilitates low-fee swaps and liquidity provision for stablecoins, wrapped assets, and liquid staking tokens across multiple chains.

ChangeNOW Exchange is a decentralised exchange that lets users swap cryptocurrencies without creating an account. It matches trades using liquidity sourced from multiple venues and offers both fixed and floating rate options for each swap. The service also includes a fiat-to-crypto on-ramp so users can acquire assets using traditional payment methods, trading directly from their own wallets across multiple supported blockchains.

SushiSwap is a multi-chain decentralized exchange supporting token swaps, liquidity provision, limit orders, dollar-cost averaging, and cross-chain trading. The platform aggregates liquidity across multiple blockchains through RouteProcessor 6 to ensure optimal pricing for users.

Biswap DEX is a concentrated liquidity AMM (V3) across multiple blockchains, enabling token swaps via tiered fee pools, 0% fee limit orders, and concentrated liquidity positions. The protocol supports perpetual trading through an ApolloX integration, cross-chain asset transfers via Wormhole and Axelar/Squid Router, ETH liquid staking for WBETH through a Binance Earn partnership, yield farming, launchpools, and prediction markets.

WOOFi is a decentralized exchange using a Synthetic Proactive Market Making (sPMM) algorithm that replicates centralized exchange order book liquidity onchain across multiple blockchains. The protocol provides single-sided earn vaults, cross-chain swaps, and distributes 80% of net fees to WOO stakers in USDC.

Peer Protocol is a peer-to-peer onramp and offramp that lets users trade crypto directly with other users through everyday payment apps. Sellers deposit stablecoins into onchain escrow and set rates, while buyers pay through their preferred payment method and receive crypto once payment is verified through privacy-preserving proofs. The protocol keeps funds non-custodial throughout, releasing assets directly to a buyer wallet without a middleman holding funds. It supports trading across multiple blockchains and a range of payment applications and fiat currencies.

UniversalX is a cross-chain trading platform that lets users buy and sell tokens across multiple blockchains without manually bridging assets. It routes orders across multiple chains and decentralized exchange venues while applying protections against front-running to seek optimal price execution. The platform runs on the underlying chain abstraction infrastructure and is accessible through mobile apps and a web interface for retail traders.

Brale Exchange provides stablecoin trading and swapping functionality, enabling users to exchange between different stablecoins and supported assets at par rates.

DODO V1/V2 is a capital-efficient DEX using the Proactive Market Maker algorithm, enabling single-sided liquidity provision, reduced impermanent loss, and intelligent price discovery through external oracle integration.

DODO V3 is a leveraged market maker featuring multi-asset pools, separated buy/sell liquidity for professional strategy providers, and significantly reduced gas consumption compared to traditional AMMs.

CryptoRoute is a self-custodial swap engine that lets users exchange crypto assets across blockchain networks without creating an account. Users pick a source and destination asset and network, receive a live quote with fees and a minimum receivable amount, and send funds to a one-time deposit address after address validation. The swap itself routes wallet-to-wallet through an intent-based settlement layer, with a live status page tracking progress until the destination asset arrives. It supports a wide range of assets and networks, including major blockchains and stablecoins, without CryptoRoute ever holding user funds or keys.

TryBit Exchange is a cryptocurrency exchange that lets users swap between digital assets directly on its own dedicated web application. It routes conversions through a third-party exchange operator, allowing users to execute swaps without holding a merchant account with the payment gateway. The exchange supports conversion among a range of cryptocurrencies and stablecoins across multiple blockchains, functioning as a standalone conversion tool separate from the merchant-facing payment gateway.

Orbiter Swap is a decentralized cross-rollup bridge enabling asset transfers between Ethereum Layer 2 networks through a Maker-Taker mechanism. Users send assets to Maker addresses on source chains while Makers provide equivalent assets on destination chains.

Balancer V2 implements programmable liquidity pools through a unified Vault architecture, enabling customizable automated market making with weighted and stable pool types. The system supports pools with multiple tokens at arbitrary weights while managing token accounting and batch swaps through a single smart contract vault.

Balancer V3 implements simplified custom pool creation through enhanced Vault architecture with transient accounting using EIP-1153, enabling re-entrant pool lifecycle hooks and native yield-bearing token support. The system provides developer infrastructure for building custom automated market makers with reduced code complexity.

dYdX v3 operates as an Ethereum Layer 2 trading protocol using StarkWare scaling technology. The system enables perpetual contract trading through smart contracts deployed on Ethereum mainnet with off-chain order matching and on-chain settlement for trade execution and position management.

Zypto is a self-custody multichain crypto wallet that lets users store, send, and manage a wide range of digital assets across numerous blockchains. It provides built-in decentralized exchange swaps, cross-chain swap routing, and WalletConnect integration alongside an in-app Web3 browser for direct dApp access. Users can also spend crypto through physical and virtual Visa cards, pay bills, buy gift cards, top up mobile phones, and convert USDC to cash through a partnered cash network, with an optional tap-to-pair hardware accessory available for cold storage.

Abarai is a non-custodial cryptocurrency exchange that lets users buy, sell, and swap digital assets without an account or platform-held funds. Purchases route through multiple payment methods, including credit and debit cards, bank transfers, Revolut Pay, and Apple Pay, with assets delivered directly to a wallet address the user controls. A built-in swap module converts between numerous crypto pairs, and the site bundles reference tools such as live price tracking, a converter, a profit and loss simulator, a tax calculator, a Bitcoin dominance tracker, and a transaction verifier alongside an educational academy.

Wombat Exchange is a stableswap protocol using asset-liability management through coverage ratios, enabling single-sided liquidity provision and crosschain swaps. The system batches transactions across multiple chains through Wormhole integration while maintaining capital efficiency through open-liquidity pool architecture.

Ramp Network is a payment infrastructure that enables buying cryptocurrencies with fiat currency, selling cryptocurrencies back to fiat, and swapping between digital assets across multiple blockchains. It operates through a single embeddable widget that businesses integrate into their applications, and a consumer application that individuals use directly. The platform also provides a self-custodial wallet built into its mobile application, allowing users to store and manage supported digital assets without giving up control of their private keys.

Coin Wallet DEX is a decentralized exchange interface for trading digital assets, including perpetual markets with leverage. Users connect a wallet to access markets and portfolio tools.

Velodrome implements an automated market-maker protocol on Optimism, facilitating token swaps through customizable liquidity pools and vote-escrowed governance. The system distributes VELO token emissions to liquidity providers based on weekly gauge weight voting by veVELO NFT holders. The protocol supports both stable pools for correlated assets and volatile pools for standard pairs, utilizing concentrated liquidity principles for capital efficiency. Trading fees, VELO emissions, and external protocol bribes are distributed to veVELO holders who vote on liquidity pool incentives.

Utorg App is a self-custody crypto wallet and payment hub for consumers. It lets users store crypto assets, buy crypto through an integrated purchase flow, and swap between tokens directly within the application. The app also serves as the access point for obtaining a non-custodial Visa card that converts crypto balances to fiat at the point of sale, letting holders spend at physical terminals, online stores, and through mobile pay wallets, with the card currently available to users in EEA countries. The app is available on Android with an iOS release pending.

Elk Finance implements a decentralized cross-chain bridging and liquidity platform via ElkNet, a peer-to-peer network of nodes that executes atomic cross-chain transactions across EVM-compatible blockchains. The system uses a reservoir-based liquidity model, eliminating fragmented wrapped tokens during cross-chain transfers. The platform integrates an AMM-based DEX (ElkDEX) with liquidity farming and single-asset staking, alongside Bridge-as-a-Service and Farm-as-a-Service SDKs for developer use.

Definitive is a decentralized exchange aggregator providing institutional-grade trade execution across multiple blockchains. The system routes orders across over 100 decentralized exchanges and offchain market makers through smart order routing algorithms. Users can place market, limit, TWAP, and stop orders while the platform manages gas costs through transaction sponsorship. The infrastructure includes automated slippage optimization, private order flow management, and real-time position tracking with profit and loss analytics. Access is available through web interface and programmatic API for automated trading strategies.

Azza AI is a WhatsApp-based agent that lets users buy, sell, swap, and bridge crypto through chat commands. It converts crypto to local currency and back, enabling instant cashouts to bank accounts or mobile money, and lets users send crypto to contacts using a phone number instead of a wallet address. The agent also lets users track balances and manage assets without leaving WhatsApp, requiring a brief identity verification step before trading.