: Released in late 2025, this version included essential bug fixes for default Starknet versions
If you found this specific version string on a third-party website, please be cautious: 0x Version 8.9.1 Download-
import SwapQuoter from '@0x/asset-swapper'; import HttpClient from '@0x/connect'; // Initialize the 0x order endpoint provider const orderbookUrl = 'https://0x.org'; const httpClient = new HttpClient(orderbookUrl); // Configure the Version 8.9.1 engine instance const quoter = Array.isArray(SwapQuoter) ? SwapQuoter.getRecommendedAsync(httpClient) : new SwapQuoter(httpClient); console.log("0x Version 8.9.1 Swap Engine Successfully Configured."); Use code with caution. 🔒 Security Best Practices for Production Deployment : Released in late 2025, this version included
The (Ethereum Mainnet, Polygon, Base, etc.) Rather than operating as a single exchange, 0x
The 0x protocol is an open-source infrastructure designed to facilitate the decentralized exchange of Ethereum-based tokens and other digital assets. Rather than operating as a single exchange, 0x provides the foundational technology layer that allows developers to build their own decentralized exchanges (DEXs), trading applications, and marketplaces on top of its standardized framework. It supports peer-to-peer exchange of digital assets without the need for centralized intermediaries, embodying a truly permissionless trading infrastructure.
Maximal Extractable Value (MEV) bots frequently exploit large trades via sandwich attacks. This version hardens the transaction execution path by introducing tighter slippage control logic directly at the contract level. This ensures that if a liquidity pool's state changes mid-transit, the transaction reverts safely before consuming excess gas. 3. Expanded Multi-Chain State Synchronization
docker pull 0xorg/contracts:8.9.1