NFT APIs
NFT APIs return ownership, metadata, transfers and floor prices for collections. OpenSea's API, free with a key, pulls collection, asset and event data from its marketplace across several chains. Alchemy's NFT API is freemium and covers sales and floor prices on Ethereum and other EVM chains, while Moralis's paid NFT API adds owners and transfer history.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
Alchemy NFT APINFT ownership, metadata, collections, sales and floor prices on Ethereum and other EVM chains. Crypto › Blockchain Data & Nodes | Freemium | API key | JSON | — | Live |
Moralis NFT APINFT metadata, owners, transfers, collections and floor prices across Ethereum and other EVM chains. Crypto › Blockchain Data & Nodes | Paid | API key | JSON | — | Live |
OpenSeaNFT collection, asset, event and pricing data across multiple blockchains from the OpenSea marketplace. Crypto › Market Data | Free | API key | JSON | 10k+/day | Live |
Alchemy NFT APIFreemiumLive
NFT ownership, metadata, collections, sales and floor prices on Ethereum and other EVM chains.
API key · JSON
—
no machine-readable spec
Moralis NFT APIPaidLive
NFT metadata, owners, transfers, collections and floor prices across Ethereum and other EVM chains.
API key · JSON
—
no machine-readable spec
OpenSeaFreeLive
NFT collection, asset, event and pricing data across multiple blockchains from the OpenSea marketplace.
API key · JSON
10k+/day
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Choosing an NFT API
Is there a free NFT API?
Yes. OpenSea is free to use, and Alchemy NFT API has a free tier alongside paid plans.
Which NFT APIs work without an API key?
All of them need a key or account. OpenSea and Alchemy NFT API give one out free when you sign up.
Can I use NFT APIs in a commercial project?
Alchemy NFT API and Moralis NFT API permit commercial use.
Broader: Blockchain Data & Nodes APIs · Crypto APIs
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