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0x API

A developer-focused API that aggregates liquidity from multiple decentralized exchanges to enable optimal pricing for Ethereum asset swaps

Developer Tools·Launched Apr 2026·0 upvotes·0x.org

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DEAD (404)since May 23, 2026 · HTTP 404

CohortClass of 2026

What it is

A developer-focused API that aggregates liquidity from multiple decentralized exchanges to enable optimal pricing for Ethereum asset swaps. The platform uses intelligent order routing to source the best quotes across protocols including 0x, Kyber, Uniswap, and Oasis.

HTTP liveness

19 probes since May 23

May 23Jul 15

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

May 23, 2026
First probe — down
Dead · 404

Funding history

3 rounds

Total raised

$10.1M

Latest valuation

$4.8M

Stage

early

Lead investors: Pantera Capital · Pantera Capital · Pantera Capital · Greylock Partners · Greylock Partners

Series B

Apr 2022

Greylock Partners, Pantera Capital

Valuation: $4.8M

$5.2M

source

Series A

Feb 2021

Jump Capital

Valuation: $3.5M

$1.0M

source

Seed

Jun 2020

investors undisclosed

Valuation: $9.1M

$3.9M

source

Data from SEC EDGAR Form D filings and press coverage. Round labels for SEC filings are inferred from filing sequence and amount.

Moat

None apparent

The 0x API does not exhibit a clear defensibility mechanism.

The dossier does not provide evidence of a network effect, data accumulation, brand recognition, switching costs, IP patents, distribution advantages, cost-scale benefits, or regulatory protections.

The presence of multiple comparable products with high similarity scores suggests a potentially crowded market, which could erode any potential moat.

comparablesThe product has multiple comparable products with high similarity scores
trafficThe product's web traffic rank is 146805
descriptionThe product is described as an API-only solution

0.50 confidence · grounded in 3 sources

Grounded analysis from catalog data, comparables, and traffic · Jul 2026

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0x API

What it is

HTTP liveness

Observed events

Funding history

Moat

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