0x, a leading decentralized exchange (DEX) infrastructure provider, has launched its Cross-Chain API into private beta. This developer solution enables applications to execute token swaps across more than 15 blockchains, including major EVM networks and Solana, through a single integration. The API is specifically designed to support programmatic trading and automated systems requiring reliable cross-chain execution.
The 0x Cross-Chain API aggregates liquidity and routes through multiple bridge providers, automatically optimizing for the best price or fastest execution based on developer preferences. It enables "bridge-and-swap" experiences that can settle in less than a minute for common token pairs, packaged as a single action for the end user.
"Developers building automated trading and treasury workflows need cross-chain execution that’s fast, predictable, and easy to integrate," said Thorsten Jaeckel, Head of Product at 0x. "With the Cross-Chain API, teams can abstract away cross-chain complexity and focus on building intelligent execution logic."
Will Warren, co-founder and co-CEO at 0x, emphasized the API's role in autonomous systems: "AI agents don’t see chains, they see opportunities. Our Cross-Chain API removes the last major friction point for autonomous systems by abstracting away blockchain complexity. Developers can now build AI agents that seamlessly execute across any chain with a single API call."
The API is forward-compatible and designed to integrate with emerging payment and authentication standards for AI agents, including Coinbase’s x402 protocol (which 0x already powers), Google’s Agent Payments Protocol (AP2), and OpenAI’s Agentic Commerce Protocol (ACP). Industry research by McKinsey estimates AI agents could mediate trillions of dollars of commerce annually by 2030.
The 0x Cross-Chain API Beta became available for developer integration starting February 25, 2026. 0x reports that over $200 billion in volume has flowed through its APIs, serving more than 14 million users of apps from partners like Coinbase, Robinhood, Phantom, and MetaMask.
