v10.3.0
What's Changed
Cross-chain fulfillment
New getCrossChainFulfillmentData() method on ListingsAPI, OpenSeaAPI, and BaseOpenSeaSDK for buying NFTs using tokens from a different chain (e.g., USDC on Base → ETH mainnet NFT). Supports same-chain different-token purchases and sweeping up to 50 listings in a single request.
The method accepts listings, fulfiller, payment token (chain + address), and optional recipient. Returns ordered transactions to sign and submit.
Full Changelog: v10.2.1...v10.3.0