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We at Covalent believe that access to organized blockchain data can unlock a billion possibilities and so we provide the best single unified API to bring full transparency and visibility to assets across all blockchain networks. With the Covalent API, there is no need to invest developer resources in writing SQL or other queries since granular, decoded, multi-chain data is immediately available for 30+ blockchain networks including Ethereum, BSC, Polygon, Fantom and Avalanche. Covalent is fast becoming the go-to data provider, with the Covalent API powering over 1,000 industry-leading projects such as Zerion, ChainGuardians, 0x and Reef.The Covalent Unified API is the fastest way to get blockchain data for your ETHNewYork 2022 Hackathon project!


🏊 Covalent is offering a $5,000 USD (equivalent in USDC/USDT) prize pool for all projects that make meaningful use of any Covalent API endpoints for their ETHOnline BUIDLs.

Prizes will be awarded at Covalent's discretion, according (but not limited) to the following metrics:

  • Quality of use case
  • Whether there’s a working demo
  • Number of Covalent API endpoints used

To qualify, projects must, at the very least, use one Covalent API endpoint and pull on-chain data from any of our 40 supported chains.

Our API is ideal for building multi-chain projects related to:

  • NFT storefronts / marketplaces / galleries
  • On-Chain Analytics / Dashboards
  • Wallets
  • Asset tracking, ROI, cost basis and tax calculators


Getting Started

Developer Resources

  • API Docs - Use the Covalent API directly from the browser with our API docs
  • Use case templates - Build off our ready-to-ship Web3 use case templates for wallets, NFT collections, DEXs and price trackers
  • Knowledge Base - check out our developer support resources and details on every supported blockchain network.