The BlockSpan NFT REST based API provides access to comprehensive NFT metadata, activity, pricing, and ownership information in real-time. It currently supports ERC721 and ERC1155 token standards on Ethereum, Polygon, Arbitrum, Optimism , BSC, Goerli and Sepolia (Ethereum testnet) with more coming soon.
Take advantage of our fuzzy matching search capabilities on token metadata for improved ability to find and understand the competitive NFT landscape. Leverage the collection price summary to research sales activity and trends. Our NFT API includes token metadata, exchange data (OpenSea), and cached image urls, saving making additional API and IPFS calls to fetch that data.