Covalent

Need immediate, structured and detailed blockchain data for Polygon, Ethereum, or 40+ other EVM chains and Solana? Covalent’s got you covered with our one unified API.

Register for a free API key and join the 40,000+ developers using the Covalent API to power their Web3 applications. We’ll even send you an exclusive ETHIndia NFT just for signing up 🔥

Website | Discord | Twitter

Covalent is offering $10,000 USD (stablecoin) in prizes broken down as follows:

• 🥇  1st - $3,000
• 🥈  2nd - $2,000
• 🥉  3rd - $1,000
• … And a $4,000 pool prize!

Prizes will be awarded at Covalent's discretion based on the:

• Use case and problem addressed
• Quality of the live app or working demo
• Use of the Covalent API

The Covalent API is ideal for building multi-chain projects where you need balances, transactions, token holders, pricing, and decoded log event data such as:

• NFT marketplaces
• DeFi and DAO analytics dashboards
• Wallets and asset tracking
• Tax and accounting applications

Getting Started

• API Key - You’ll need this to use our API
• API Docs - Use the Covalent API directly from the browser with our API docs
• Covalent Postman Collection - Quickly sample all of Covalent’s endpoints from the comforts of your Postman workspace.
• Knowledge Base - check out our developer support resources and details on every supported blockchain network.
• Templates - build rapidly with our ready-to-use code templates, React components and other web3 resources