OpenSea API

OpenSea API, introduced by OpenSea, the leading NFT marketplace, in 2018, offers a comprehensive suite of developer tools that empower users to establish personalized marketplaces utilizing Ethereum smart contracts.

With OpenSea API, developers gain the ability to create auctions using various currencies, including their own tokens, while also benefiting from the data analytics provided by OpenSea.js.

To list an NFT on the marketplace, it must adhere to the ERC721 or ERC1155 standards. While OpenSea is free to use, developers are required to complete an application form to obtain an OpenSea API Key.