0x, a decentralized exchange (DEX) infrastructure provider, has launched its Cross-Chain API to private beta, a developer solution that helps applications execute token swaps across more than 15 blockchains through a single integration. The Cross-Chain API is designed to support programmatic trading and automated systems that need reliable cross-chain execution across EVM networks and Solana.
“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.”
The 0x Cross-Chain API aggregates liquidity and routes through multiple bridge providers, automatically optimizing for best price or faster execution based on developer preferences. It enables “bridge-and-swap” experiences that settle in less than a minute (for common token pairs), packaged as a single action for the end user.
“AI agents don’t see chains, they see opportunities,” said Will Warren, co-founder and co-CEO at 0x. “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.”
With 0x Cross-Chain API, developers can stream quotes to traders as soon as they are returned, and lower support costs through improved error tracking, delivering a more efficient and reliable cross-chain experience that can be abstracted into a standard swap flow.
0x Cross-Chain API is designed to integrate seamlessly with emerging payment and authentication standards for AI agents, including Coinbase’s x402 protocol (0x already powers Coinbase Developer Platform’s Swap API used in Agentic Wallets), Google’s AP2 standard, and OpenAI’s Agentic Commerce Protocol (ACP). This forward-compatible design ensures developers building on 0x today will be ready for the autonomous systems of tomorrow.