NFT API With Cached Metadata

by BlockSpan
5Supported chains 3Plans
Starting at $39.00
This add-on is currently in Beta

Feel free to test it, we would appreciate feedback to address any errors that may occur

Our NFT API gives you direct access to NFT metadata, exchange data, transaction activity, historical pricing, scam/spam scores, rarity, and ownership information in real time. The API also returns CDN cache urls for all NFT assets with multiple web-optimized sizes perfectly suited for developing wallet, portfolio, exchange and other applications.

Retrieving NFT data from transaction logs, IPFS, etc is costly and involves significant development time and maintenance. We aggregate NFT information across Ethereum, Polygon, Arbitrum, Optimism and BSC, saving you the time and effort of your own indexing so you can focus on your core business.

Our APIs include collection data (rarity, traits, owners, exchange data), NFT tokens (cached and resized images, video thumbnails, ownership history, detailed pricing analytics), exchange data by marketplace, ownership by wallet across chains, transactions, scam/spam scores, and much more.

Getting Started

Our documentation for every API endpoint is available at

Per QuickNode guidelines, your API key and the chain from which you are requesting data is included in your url and does not need to be passed as a separate header or parameter. Your API url is in format “{Your API KEY}/v1/.” For example, to use our collections API as defined in the documentation, you would send requests to the url “{Your API KEY}/v1/collections/”

Don’t hesitate to contact us or join our discord if you have any questions.

Supported Chains

BNB Smart Chain
Ethereum logo
Optimistic Ethereum
Polygon / MATIC

Published on Dec 12, 2023

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Plans & features

Professional - $39/month
  • Professional - $39/month
  • Advanced - $249/month
  • Enterprise - $499/month
Enterprise Sales
250,000 Requests Per Month
Up to 250,000 requests per month.
Price Summaries
Transaction pricing details, including ERC-20 token payments associated with transfers
Image and Asset Caching
NFT images and other assets cached, resized, and loaded into the CDN for quick access inside your app
Multiple Blockchains
Support for Eth, Polygon, BSC, Arbitrum, Optimism and more
Real Time NFT Metadata
NFT metadata, traits, cached assets such as images and videos
Fuzzy Matching Search
Search NFT collection descriptions, tokens, and more
Spam/Scam Scores
Collections scored for the likelihood that they are spam
Collection Endpoints
Transactions, exchange data, traits and rarity by collection
Transfer Endpoints
Ownership history, transaction prices (including multi-token transfers)
Exchange Data
Sales statistics from exchanges with marketplace trends