Best price, verified
and compliant
For regulated desks, best execution is a legal obligation. As a US-incorporated business, 0x keeps you in line with NBBO best practices by delivering the highest win rates after gas costs. Where others lead with a quote, we engineer for the fill, settling the expected price with the lowest revert and overquote rates among all the competition.
A quote is a promise, a fill is proof
Regulated companies need proof, not promises. Other providers show best price as a quote, an ideal price captured before slippage, MEV, gas, and reverts. 0x optimizes for the number that matters: net tokens received.
We ran the numbers against other infrastructure providers to see how often they overquote an amount that can't be filled. This data is from real-world settled trades since January 2026.
0x has the lowest rate of overquoting compared to other aggregators, meaning you get the amount of assets you expect when you make a trade. High overquote rates show that other providers overestimate their technology and win trades, despite not being able to fulfill them.
Payment use cases demanding absolute precision can use Exact Buyto ensure that the amount invoiced is paid, with no variance and support for any input token.
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Reverted trades will disrupt any product or service built on-chain. 0x leads with the lowest number of reverts, while others fail one in every 5 transactions.
Execution is critical to your customers, and may also factor into your obligations under NBBO in the US and Canada, and EBBO and MiFID II in the EU, which frame best execution as a duty.
Trades that settle reliably and accurately is fundamental to your choice of infrastructure partner, and among the main reasons customers choose 0x.
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Don’t take our word for it. Let us prove it, trade for trade. Benchmark our execution on your pairs, your sizes, your chains.
Get a benchmarkThe proof, pair by pair
One quote, three layers of liquidity
0x doesn’t pick a venue, it aggregates them and forms a route through only the sources you allow. Every request is split, composed, and gas-weighted across the on-chain market, then packaged into a single executable quote. 0x gives you control over which sources to exclude, to manage risk and ensure compliance, providing optimal balance in your execution.
AMMs (373+)Permissionless on-chain pools across 23 chainsAlways-on baseline depth for every token+
Automated Market Makers (AMMs) are priced on a curve based on the assets deposited in a public liquidity pool. Trades made through an AMM are subject to price impact and slippage, and may be targeted by MEV bots, leading to worse pricing than quoted (up to slippage tolerance).
RFQFirm quotes from professional market makersZero-slippage fills, private pools+
Market makers must beat the on-chain price to be included, so RFQ only ever improves the fill. Quotes are firm with no slippage.
PropAMMsProprietary on-chain market makersCompetitive, programmatic pricing+
PropAMMs are similar to AMMs but managed by private market makers, offering improved pricing in many cases. The risk with proprietary market makers is simple: they can quote great, then fill worse within a single block. 0x actively monitors propAMMs to tame opportunistic market makers:
Think NBBO plus a dealer desk: public pools set the floor, and a network of professional market makers competes to beat it, the same structure that defines best execution in traditional markets.
The questions your legal team will ask
Are you a money transmitter? Do we inherit custody risk?+
How are sanctions and AML handled — and what does it cost us?+
Where are you based, and what security attestations do you hold?+
Do you run a proprietary token or stablecoin that competes with us?+
Can you support tokenized assets / RWAs?+
What exactly is in the per-fill audit trail you hand our auditors?+
0x vs. the alternatives
See your numbers
before you commit
Run a free, no-obligation benchmark on a sample of your real flow so you can evaluate the full dataset before any contract.
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