DEXes · Review

OpenXSwap Review 2026: Small Optimism DEX and Aggregator

OpenXSwap is a small Optimism-based DEX and aggregator, part of the OpenX Project, which also runs vaults and an NFT market. Liquidity is very low, so it suits experimenters more than active traders.

Optimism

By the DappsAtlas editorial team · Updated Nov 5, 2026

DappsAtlas score

4.8/10

Weak

Visit OpenXswap

Our verdict on OpenXswap

4.8/10

OpenXSwap suits experienced DeFi users who want to explore a small Optimism project with an aggregator, vaults and a vote-escrow wrapper. Its strengths are the broad product set and the routing across Velodrome and Zip Swap liquidity. The main caveats are very low TVL of about $20,000, only a preliminary audit, and signs of low recent activity. Most traders will get better pricing and stronger security on larger, audited venues.

Score breakdown

How OpenXswap scores

Security: 3.5/10
Ease of use: 6.0/10
Fees: n/a
Features: 6.0/10

Scores run from 0 to 10 and are based only on facts we could verify. Where information was missing we mark the score n/a rather than guess.

What is OpenXswap?

OpenXSwap is the exchange arm of the OpenX Project, a set of smart contracts on Optimism and other chains. The project's documentation describes a multichain aggregator, vaults and an NFT market, along with a liquid wrapper for vote-escrow positions.

The project says it has no outside funding, that its tokens were fair launched, and that its governance structure is an experiment in decentralization. It lists a preliminary audit by 0xGuard, though no full audit appears on DefiLlama. It has been tracked since March 2023.

Scale is small. DefiLlama shows roughly $20,000 in total value locked, so liquidity is thin. The documentation overview shows an update about two years ago, and the main openxswap.com domain appears to be for sale, so treat the project as low-activity and check its current state before using it.

How OpenXswap works

OpenXSwap is an automated market maker setup on Optimism. Users trade against liquidity pools rather than an order book, and liquidity providers deposit token pairs and earn from trading activity.

The router also acts as an aggregator. According to the project's documentation, it pulls liquidity from OpenXSwap pools, Velodrome and Zip Swap, so a swap can be split or routed to get a better price.

Around the exchange sits a wrapper for vote-escrow positions. Vote-escrow systems lock a token for a period in exchange for voting power, and a liquid wrapper tokenizes that locked position so it can be held or traded. The docs list opxVELO on Optimism as the product built for this purpose.

6 features

Key features

Liquidity aggregator

Routes swaps across OpenXSwap, Velodrome and Zip Swap pools on Optimism, so trades can use liquidity from several venues.

Liquid vote-escrow wrapper

Wraps vote-escrow positions into a liquid token, described as using novel mechanics to tokenize the value of a vote-escrow position. opxVELO on Optimism is one example.

NFT market

A multichain marketplace for NFTs, including veNFTs. The project has advertised a flat 1% trading fee for veNFT sales.

Vaults

Multichain vaults are part of the project's contract suite, listed alongside the aggregator and NFT market.

Cross-chain token bridge

The OXP token can move across chains through a Hyperlane bridge, which uses cross-chain messaging.

Immutable contracts

The project states its contracts are permissionless, trustless and immutable, and that it has no outside funding.

Pros and cons

What we like

Aggregator routes across OpenXSwap, Velodrome and Zip Swap liquidity
Wide product set: swaps, vaults, NFT market and a vote-escrow wrapper
Contracts described as immutable and permissionless
Project states it has no outside funding and fair-launched its tokens
Public documentation with a smart contracts section

Watch out for

TVL is very small, around $20,000, so liquidity is thin and trades can move prices
No full audit is listed; the docs mention only a preliminary audit by 0xGuard
The documentation overview was last updated about two years ago, which raises questions about ongoing development
The team and funding are not named, and the project says it has no outside funding
Governance is described as an experiment, so its long-term direction is uncertain
The openxswap.com domain appears to be listed for sale, so the official site is the documentation domain

OpenXswap fees

Swap fees for OpenXSwap pools are not stated in the material reviewed. The project's social posts mention a flat 1% fee for trading veNFTs on its marketplace.

On any DEX you also pay network gas on Optimism, plus slippage, which can be high when liquidity is as thin as it is here. The swap interface and the docs are where you would see current pool fees.

Is OpenXswap safe?

A preliminary audit by 0xGuard is mentioned in the documentation, but no complete audit report is listed on DefiLlama. Smart-contract risk is therefore real, and immutable contracts mean bugs cannot be patched easily.

The team behind the project is not named in the material reviewed, and no insurance or bug bounty is mentioned. Very low TVL and a documentation page not updated for about two years suggest limited maintenance. Using the exchange means self-custody in your own wallet, so you control keys but also bear all losses. Only trade amounts you can afford to lose.

6 steps

How to get started with OpenXswap

1
Read the docs to see which products you need: swap, vaults, the NFT market or the vote-escrow wrapper.
2
Set up an Ethereum-compatible wallet and add the Optimism network.
3
Fund the wallet with ETH on Optimism for gas, and bridge assets there if needed.
4
Open the app from the link in the official docs, not from search ads, and connect the wallet.
5
Check the quoted price, price impact and fees before you confirm a swap, and start with a small amount.
6
Confirm you are using current contract addresses listed in the docs' Smart Contracts section.

Open OpenXswap

Who OpenXswap is for

OpenXSwap fits DeFi users who already work on Optimism and want to experiment with a small project's vote-escrow wrapper, vaults or veNFT market. It is a poor fit for newcomers, larger trades or anyone who requires full audits and deep liquidity.

OpenXswap FAQs

What is OpenXSwap?

OpenXSwap is a decentralized exchange and liquidity aggregator on Optimism, part of the OpenX Project. The project also builds vaults, an NFT market and a liquid wrapper for vote-escrow positions.

Does OpenXSwap have a token?

The documentation describes an OpenX token and an OXP token, and DefiLlama lists the token as OpenX. Details such as supply and distribution are not covered here beyond the project's statement that its tokens were fair launched.

Which liquidity sources does the aggregator use?

A 2023 documentation page says the router aggregates liquidity from OpenXSwap, Velodrome and Zip Swap on Optimism. This lets a swap draw on several pools instead of just one.

Is OpenXSwap audited?

The docs mention only a preliminary audit by 0xGuard, and no audits are listed on DefiLlama. Treat the contracts as not fully audited and only use funds you can afford to lose.

What fees does OpenXSwap charge?

One social post from the project mentions a low, flat 1% fee for veNFT trading on its marketplace. Swap fees and other charges are not stated in the material reviewed, so check the app before you trade.

Is OpenXSwap still active?

DefiLlama shows about $20,000 in TVL, down slightly over seven days, and the docs overview was last updated about two years ago. Activity appears low, so check the app and the project's social channels for current status.

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