Deep Dive
1. Security Best Practices (15 August 2025)
Overview: Addressed vulnerabilities caused by improper token approvals to 0x's permissionless contracts. The update clarified that contracts themselves were secure, but emphasized using approved standards like Permit2 or AllowanceHolder for token approvals.
This followed an incident where misconfigured approvals in third-party integrations allowed MEV bots to exploit vulnerabilities. The guidance prevents unauthorized transfers by ensuring token allowances are only set on battle-tested, purpose-built contracts rather than swapper contracts.
What this means: This is neutral for ZRX because it doesn't alter core protocol functionality but strengthens ecosystem security. It reduces integration risks for partners while maintaining 0x's reliability.
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2. Monad Liquidity Integration (24 November 2025)
Overview: Added support for aggregating Monad's order book liquidity alongside AMMs. This leverages Monad's 1-second block finality and near-zero gas fees to enable efficient CLOB (Central Limit Order Book) integration.
The update allows dApps on Monad to access deeper liquidity from exchanges like KuruExchange and Uniswap through 0x API. It represents architectural adjustments to accommodate Monad's EVM-compatible environment while maintaining cross-chain compatibility.
What this means: This is bullish for ZRX because it expands 0x's multi-chain footprint, potentially increasing protocol usage fees and utility as Monad gains adoption.
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3. Zora Network Support (19 August 2025)
Overview: Integrated Zora Network's "post coins" into Swap API, enabling seamless trading of these social tokens within wallets like Base and Matcha.
This required adding Zora-specific asset handling to 0x's routing logic, allowing dynamic recognition and swapping of Zora's unique token types. The update simplifies building social token experiences for developers.
What this means: This is bullish for ZRX because it taps into the growing social token ecosystem, driving more transaction volume through 0x's infrastructure.
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Conclusion
0x's recent code updates prioritize security hardening and multi-chain expansion, particularly through Monad and Zora integrations. These enhancements strengthen its position as a cross-chain liquidity layer while mitigating third-party risks. How might these upgrades impact ZRX's utility in emerging L2 ecosystems?