6 pro tips to help you build and submit a hackathon project that stands out from the competition and captures the judges’ attention.

Learn how to use Chainlink VRF to request a random number in smart contracts deployed to Polygon’s Proof of Stake (PoS) sidechain.

Learn how to use Hardhat to create Solidity smart contracts that obtain external data, use Chainlink Price Feeds, and get a random number using Chainlink VRF.

Learn how to fetch the current price of Bitcoin, Ethereum and other cryptocurrencies in your Solidity smart contracts.

How to use Chainlink oracles and price feeds on the Polygon Network for securely fetching up-to-date prices when building a DeFi application.

Learn how to easily and securely feed external data to decentralized insurance smart contracts in Solidity with Chainlink oracles.