Now in beta: NFT Orderbook API

If you're interested in NFTs, chances are you've bought or sold one.

There are a number of marketplaces where this can be done. While this variety may be great for users, it adds complexity for any developer looking to incorporate marketplace data into their application. In many cases, this means individual integrations with each marketplace and constant data retrieval and aggregation.

We are excited to unveil a set of new Orderbook endpoints to solve this problem:

• getOrderbookData: Retrieve active bids and asks for a specified collection across major marketplaces
• getOrderbookDataByTokenID: Retrieve active bids and asks for a specified NFT across major marketplaces

Check out our documentation here for more details on these endpoints.

Our orderbook endpoints aggregate data from top marketplaces, including:

• OpenSea
• LooksRare
• X2Y2

We have rolled out support for these endpoints on ethereum-mainnet so far, but will be adding support for other chains (and marketplaces) soon.

We provide the following information:

• id: Unique identifier for bid / ask
• listedAt: Time when the bid / ask was created
• expiresAt: Time when the bid / ask expires
• networkId: Blockchain
• marketplace: Marketplace where bid / ask was created
• orderType: Type of order (Bid or ask)
• collectionAddress: Address for collection
• tokenId: Token ID of asset included in listing
• price: Array of information on currency and price of listing
• quantity: Quantity of assets included in listing
• buyerAddress: Wallet address of prospective buyer
• sellerAddress: Wallet address of prospective seller
• permalink: Link to marketplace listing
• status: Status of listing
• isCollectionOffer: If listing is collection offer

We are eager for feedback and will be iterating on these endpoints in the coming weeks. Something else you would like to see on this list? Let us know.

See below for an example of what Center can power:

Retrieve active bids and asks for Bored Ape Yacht Club #1:

curl --request GET \
     --url 'https://api.center.dev/experimental/ethereum-mainnet/0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D/1/orderbook?limit=2' \
     --header 'X-API-Key: test' \
     --header 'accept: application/json'

Response (Limited to 2):

{
  "items": [
    {
      "id": "589792a7-4aa8-4a00-9755-8a2cf1b62489",
      "listedAt": "2022-10-30 08:35:15 +0000 UTC",
      "expiresAt": "2023-04-28 07:35:12 +0000 UTC",
      "networkId": "ethereum-mainnet",
      "marketplace": "looksrare",
      "orderType": "bid",
      "collectionAddress": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
      "tokenId": "",
      "price": {
        "currencyInfo": {
          "symbol": "WETH",
          "decimals": 18,
          "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
          "isNative": false
        },
        "amount": {
          "atomicAmount": "750000000000000000",
          "wholeAmount": 0.75
        }
      },
      "quantity": "1",
      "buyerAddress": "0x77C0c1c3d55A9aFad3ad19f231259cf78A203a8D",
      "sellerAddress": "0x0000000000000000000000000000000000000000",
      "permalink": "",
      "status": "valid",
      "isCollectionOffer": true
    },
    {
      "id": "19e42ae4-096c-4f84-96a6-5ffac526a85e",
      "listedAt": "2022-11-14 05:11:58 +0000 UTC",
      "expiresAt": "2023-05-13 05:11:46 +0000 UTC",
      "networkId": "ethereum-mainnet",
      "marketplace": "looksrare",
      "orderType": "bid",
      "collectionAddress": "0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D",
      "tokenId": "",
      "price": {
        "currencyInfo": {
          "symbol": "WETH",
          "decimals": 18,
          "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
          "isNative": false
        },
        "amount": {
          "atomicAmount": "290000000000000000",
          "wholeAmount": 0.29
        }
      },
      "quantity": "1",
      "buyerAddress": "0x6Fa9f801e06DE0B8A61dE91F051d9F052B930b12",
      "sellerAddress": "0x0000000000000000000000000000000000000000",
      "permalink": "",
      "status": "valid",
      "isCollectionOffer": true
    }
  ],
  "paging": {
    "offset": 0,
    "limit": 2,
    "onLastPage": false
  }
}

Other requests or ideas? Please submit a feature request or reach out to our support team.

Seem interesting?

Building an NFT-related application may seem daunting, but our APIs can help abstract away complex infrastructure details so you can focus on what matters to your users.

We already support a wide variety of applications, including NFT marketplaces, wallets, data intelligence tools and portfolio trackers.

Ready to get started?

• Sign up for an API key

Need help or want more information?

• Check out our documentation
• Contact our support team
• Join Center's Discord or Telegram channels
• Follow us on Twitter

About Center

Center is a multi-chain, high-performance NFT API designed with speed and developer productivity in mind. Our seasoned team has working experience at Coinbase, WhatsApp, Facebook, Google, Square and Paradigm. We’ve led teams and built products where scalability, performance, and security are paramount — and we bring that mindset to everything we build.

To date, Center has indexed over 150TB of NFTs across 14 chains. We offer a a 99.999% uptime SLA and support users ranging from individual hackers to large enterprises.

Our APIs also power center.app, an NFT search engine that we are building. We encourage you to check it out!

What is an NFT API?

Building NFT-related applications from scratch is complicated. It might require indexing multiple chains, ingesting vast quantities of data, and meticulously building low-level infrastructure to ensure all of the data is processed correctly. This could take engineers months to get right before they even start building an application.

Our APIs allow builders to abstract away this complexity and focus on building useful products for end users right away— we take care of the infrastructure and low-level technical details. With just a few lines of code, builders can use our APIs for a range of use cases including NFT rendering, search and data retrieval.

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