NFT Marketplace API

Build NFT marketplace applications with the best marketplace APIs. Compare OpenSea, Foundation, Blur, and more.

Top NFT Marketplace APIs

OpenSea API

The largest NFT marketplace. Great for exploring collections and floor prices.

  • Free Tier: Limited (5 requests/sec)
  • Paid Plans: From $5/1000 API calls
  • Networks: Ethereum, Polygon, Solana, Klaytn
  • Best For: Collection analytics, floor prices

Reservoir

Aggregates data from multiple marketplaces. Great for floor price and routing.

  • Free Tier: 10K requests/month
  • Paid Plans: Custom pricing
  • Networks: Ethereum, Solana, Polygon, Base
  • Best For: Cross-marketplace data, routing

SimpleHash

Comprehensive NFT data API with metadata and image hosting.

  • Free Tier: 5K requests/month
  • Paid Plans: From $99/mo
  • Networks: 30+ chains
  • Best For: Multi-chain NFT indexing

Alchemy NFT API

Enterprise-grade NFT data with ownership and transfer tracking.

  • Free Tier: Included with Alchemy account
  • Paid Plans: From $49/mo
  • Networks: Ethereum, Polygon, Solana, Arbitrum
  • Best For: Large-scale NFT applications

QuickNode NFT API

Fast NFT API with real-time updates and filtering.

  • Free Tier: 50K requests/day
  • Paid Plans: From $49/mo
  • Networks: Ethereum, Solana, Polygon, BSC
  • Best For: High-performance NFT apps

Comparison Table

API Free Tier Networks Best For
OpenSea Limited 4 chains Collection data
Reservoir 10K/mo 4 chains Routing
SimpleHash 5K/mo 30+ chains Multi-chain
Alchemy Yes 4 chains Enterprise
QuickNode 50K/day 4 chains Speed

Building NFT Marketplace Features

Essential Features

  • NFT Browsing: Display collections with filtering and sorting
  • Collection Stats: Floor price, volume, holders
  • Ownership Lookup: Check wallet NFT holdings
  • Transaction History: Past sales and transfers
  • Real-time Updates: WebSocket for new mints/sales
  • Metadata Fetching: NFT images and attributes

Solana NFT APIs

Helius

Fast Solana RPC with enhanced NFT APIs.

  • Free Tier: 10M credits/month
  • Best For: Solana NFT applications

QuickNode (Solana)

High-performance Solana RPC with NFT indexing.

  • Free Tier: 50K requests/day
  • Best For: Production Solana dApps