Now available: Floor price, volume and market cap

You can now use Center's API to access floor price, volume and market cap data for NFT collections on Ethereum and Polygon.

We are excited to share that our users can now use Center's API to retrieve market data:

  • Floor price: Minimum trade price over the last 5 days on select exchanges (vary by chain)
  • Collection volume: 24 hour trading volume for collection
  • Market cap: Sum of max(floor price, last traded price) for all assets in collection

For maximum accuracy, we've taken care to remove the impact of obvious wash trading (e.g., trades back and forth between the same two addresses). All data points are provided in WETH , using exchange rates at the time of the trade if necessary.

We have rolled out support for market data on both ethereum-mainnet and polygon so far, but will be adding support for other chains soon.

Check out a few examples:

Retrieve the floor price for Bored Ape Yacht Club:

curl --request GET \
     --url https://api.center.dev/v1/ethereum-mainnet/0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D/market-data/floor-price \
     --header 'X-API-Key: test' \
     --header 'accept: application/json'

Response:

{
  "currencyInfo": {
    "symbol": "WETH",
    "decimals": 18,
    "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "isNative": false
  },
  "amount": {
    "atomicAmount": "58403982000000000000",
    "wholeAmount": 58.403982
  }
}

Retrieve the market cap of Bored Ape Yacht Club:

curl --request GET \
     --url https://api.center.dev/v1/ethereum-mainnet/0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D/market-data/market-cap \
     --header 'X-API-Key: test' \
     --header 'accept: application/json'

Response:

{
  "currencyInfo": {
    "symbol": "WETH",
    "decimals": 18,
    "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "isNative": false
  },
  "amount": {
    "atomicAmount": "723280379763504000000000",
    "wholeAmount": 723280.379763504
  }
}

Retrieve the volume of Bored Ape Yacht Club:

curl --request GET \
     --url https://api.center.dev/v1/ethereum-mainnet/0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D/market-data/volume \
     --header 'X-API-Key: test' \
     --header 'accept: application/json'

Response:

{
  "currencyInfo": {
    "symbol": "WETH",
    "decimals": 18,
    "address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
    "isNative": false
  },
  "amount": {
    "atomicAmount": "332854485000000000000",
    "wholeAmount": 332.854485
  }
}

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?

Need help or want more information?

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?

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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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Our Team

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