Opensea NFT - Official Site | Marketplace

What is OpenSea?

Open­Sea serv­es as a hor­i­zon­tal, peer-to-peer mar­ket­place for digi­tal goods, allowing users to buy, sell, and auction NFTs, rare digital items and crypto collectibles. For developers, OpenSea of­fers ex­ten­sive in­te­gra­tions and tool­ing for dApps in the NFT space. They in­dex and pro­vide the largest dataset of NFTs (hav­ing been around since the first projects were listed), and act as a sec­ondary mar­ket for pop­u­lar col­lec­tions and projects.

Open­Sea sup­ports a num­ber of wide­ly-used to­kens and chains, and they are ac­tive­ly expand­ing that list. They sup­port both ERC-721 non-fun­gi­bles and ERC-1155 semi-fun­gi­bles, and are a mul­ti-chain plat­form, pro­vid­ing tool­ing for Poly­gon and Klaytn in ad­di­tion to Ethereum.

Along­side their mar­ket­place, Open­Sea’s API plat­form pow­ers third-par­ty tool­ing, with their REST API serv­ing as the back­bone of a num­ber of large projects in the Web3 com­mu­ni­ty, such as MetaMask, Coinbase Wallet, and Rainbow, among others.

OpenSea NFT Dev Platform

Open­Sea’s de­vel­op­er tool­ing con­sists of a REST API that en­ables developers to access and display metadata about NFTs, and a Soft­ware De­vel­op­ment Kit (SDK) that builds on top of the API to en­able the de­vel­op­ment that directly interfaces with the blockchain, such as for the creation of NFT marketplaces via the buying & selling of digital assets. The Open­Sea dev plat­form pro­vides a num­ber of key val­ue-adds.

For the application development via the API:

  1. Straightforward process to showcase NFTs and collections on the frontend.
  2. Ac­cess to metadata about transactions, ownership and other details for each asset and collection in OpenSea’s database.
  3. The ability to monitor any user’s wallet for NFT transactions, and retrieve information about any user’s assets.
  4. Robust data management tools, including filtration and statistics by category.
  5. Open­Sea NFT pro­vides com­pre­hen­sive doc­u­men­ta­tion that makes it easy to get started us­ing their API.

And for smart contract interaction via the SDK:

  1. Ac­cess to the largest com­mu­ni­ty in the space for col­lec­tors & sell­ers via Open­Sea’s ex­change con­tract.
  2. The ability to build e-commerce functionality that reads and writes to the blockchain without deploying your own contracts.
  3. Build native marketplaces for the buying & selling of NFTs with a wide range of features and payment structures.
  4. Open­Sea pro­vides built-in roy­al­ty sup­port through Roy­al­ty Reg­istry that is standard­ized across plat­forms.
  5. The Open­Sea NFT doc­u­men­ta­tion is reg­u­lar­ly up­dat­ed for com­pli­ance with the lat­est So­lid­i­ty standards.