Quicknode

October 9, 2025 — 2 min read

Quicknode has partnered with 0x, one of the most trusted teams in decentralized trading, to bring their Swap API to the Quicknode Marketplace.

This integration gives developers a simple, reliable way to add powerful, cross-chain trading functionality into any onchain application with just a few lines of code.

A Single API for Deep Liquidity

The 0x Swap API connects to over 150 liquidity sources across 17+ EVM-compatible networks, including Ethereum, Arbitrum, BNB Chain, Polygon, Optimism, Blast, and Mantle, among others.

For developers, this means your users can swap tokens at the best possible rate without leaving your app. Whether you are building a wallet, analytics dashboard, or DeFi protocol, the API automatically finds the most efficient route across multiple liquidity pools and market makers to ensure optimal execution.

Built for Real Applications

The Swap API is designed for production environments that require speed, uptime, and reliability. It delivers a median response time of under 250ms, maintains 99.9% uptime, and achieves one of the lowest revert rates in DeFi.

Its smart routing engine uses multiplexing and multihop logic to split or route trades through intermediate tokens, unlocking deeper liquidity and reducing slippage. The result is faster, more consistent trading performance for your users.

Unlocking New Business Models

Integrating the 0x Swap API is not only about access to liquidity. It also creates opportunities for monetization. Developers can earn fees on every swap using the API’s built-in fee support, turning trading volume into a revenue stream.

This makes it easy to embed trading features directly into your product, creating a complete user experience inside your own interface without redirecting users to external platforms.

Security and User Trust

Security is central to the 0x architecture. The Swap API supports modern token approval standards such as Permit2 and AllowanceHolder, reducing the risk of over-approvals and giving users safer, more controlled interactions with their assets.

Why It Matters

Bringing 0x to the Quicknode Marketplace allows developers to combine the speed and dependability of Quicknode infrastructure with the institutional-grade liquidity and execution quality of 0x.

Together, they make it easier than ever to build high-performance onchain applications that trade efficiently and scale globally.