Tag
#chainlink-vrf
113 repositories
Repos
A crypto shooter-survival real-time NFT-based game inspired by The Purge 💸
EVM compatible Dapp built with React/Hardhat/Chainlink-VRF2 => Flip a coin to double your ETH!
Onchain racing manager leveraging Chainlink VRF V2.5, Chainlink Functions and Chainlink Automation.
Onchain auto-battler RPG built entirely in Solidity. Combat engine, player progression, tournaments, and NFT equipment deployed on Base.
Earn dynamic NFTs as you grow your Twitch channel, for #Chainlink Hackathon 2021
No-loss NFT raffle that deposits user funds into a yield-bearing strategy and forwards all interest to the NFT creator..
Smart Contract that takes an input of addresses and picks a random winner using Chainlink VRF
A zero loss NFT lottery smart contracts built using chainlink & AAVE
Solidity raffle contract with chainlink VRF and chainlink Keepers
This is my implementation of Chainlink Products(Price Feed, VRF, Keepers Automation, APIs) using Solidity language and Hardhat tool.
A RANDAO Powered by Chainlink Initiators, Adaptors and Verifiable Random Functions integrated with Proof of Stake Consensus Validators
A decentralized Horse Racing game built with ChainLink, Solidity, Hardhat, Ethers and deployed on Ethereum Testnet
This repo contains code for the blog (published on dev.to) which demonstrates how to use Chainlink VRF v2 to request a random number and use it to mint an NFT along with listing it on Opensea.
Raffle protocol implemented using Solidity, Foundry and Chainlink.
Diploma-NFTs with Chainlink-VRF. This is a smart contract that give graduates a diploma of schools (such as college, university, etc) which is published as a NFT with a random number (randomness) generated by Chainlink-VRF (Verifiable Random Function)
Smart contract for a slot machine using Chainlink VRF for the random part
A game of Casino Roulette created on EVM using Solidity, Chainlink Automation and Chainlink VRF
Using Chainlink VRF v2, request a random number and/or browse history of all previously requested random numbers. Built using Hardhat 2, Ethers.js 5 and Vue 3.
This is an untemprable decentralized smart contract for Lottery System using chainlink VRF and Keepers
Decentralized lottery contract where users buy tickets and a winner is chosen using Chainlink VRF for provably fair randomness. Includes secure payout logic and optional frontend for interaction.
A simple lottery game using true randomness to select the winner. This contract uses Chainlinks Verifiable Random Number to generate truly random numbers, Chainlink's VRF serves as a oracle to our contract.
Ethereum dApp for crowdfunding with incentives attached (an app to attract money)
Back end of a decentralized Raffle full stack DAPP using Chainlink VRF and Chainlink Keepers and Solidity
Decentralized lottery built with Chainlink VRF and Keeper for secure and reliable random number generation.
A Smart Contract Lottery that use the implementation of Chainlink oracle such as Chainlink VRF and Chainlink Automation to pick a random winner inside the contract
This is the smart contract that associate Retirement Certificate NFTs with special tickets that includes special privilege as "Retirement Certificate NFT-associated Ticket" (ERC-1155). Random Number generated via Chainlink VRF is associated with each Retirement Certificate NFT-associated Tickets as kind of serial number of tickets in order to avoid that fraud tickets are used in secondry market.
This Decentralized Lottery Contract provides a secure and transparent way to run lotteries on the Ethereum blockchain. Using Chainlink's VRF, it ensures fair and verifiable winner selection, making it ideal for decentralized raffles and chance-based systems.
🎲 Bet2Gether is a trustless prediction game where users bet on crypto price movements, with automated payouts and NFT rewards—powered by Ethereum, Solidity, Chainlink and Tenderly.
This Raffle Contract helps us to implement the ChainLink VRF and ChainLink Keepers to pick random players as the winners for the lottery
RNG requestor using Chainlink VRF2 with direct funding.
A lottery to onboard and educate the web2 community about web3.
Lottery Game Smart Contract with Test Cases in Foundry.
Smart contract for decentralized lottery game
Implementation of a basicNFT, a randomNFT (using Chainlink VRF) with metadata hosted on IPFS and a dynamicNFT whose metada is computed on chain and varies depending on ETH price (using Chainlink Price Feeds).
A provably fair and verifiably random lottery using Chainlink VRF and Chainlink Automation.
A decentralized version of a lottery system on Ethereum where the winner is randomly chosen with the help of a random number selected by an Oracle
A Pokemon themed staking protocol with usage of Chainlink VRF
Mint randomly‐selected OpenZeppelin ERC721 NFTs from a pool of attributes using Chainlink's VRF within a factory contract The smart contract will be deployed to OpenSea's Rinkeby testnet and was tested using Python and Brownie. TokenURIs and assets are hosted on IPFS.
Users can enter lottery with ETH based on a USD Fee. Admin will choose when lottery is over The lottery will select random winner. SmartContract Lottery in Solidity. Scripts to deploy & test in Python. Brownie framework used. Chainlink Price Feed used. Chainlink VRF used for generating randomn number to choose winner in completely decentralised manner. True Randomness with Chainlink VRF. Link Tokens - Oracle Gas used. Funded chainlink contract with link token before using randomness. Deployed on ganache local & testnet rinkeby.
Roulette UI compatible with ChainLink VRF randomness generator smart contract
A digital scratch card Dapp where users can win prizes by matching 3 images
Smart contracts to learn about Chainlink features, such as VRF, Automation, Data Feeds and CCIP
"Hardhat Smart Contract Lottery" is a blockchain project that leverages Ethereum smart contracts to implement a lottery system. Developed using Hardhat, this project provides a comprehensive setup for Solidity development, testing, and deployment.
advanced DeFi token ecosystem with automated taxes, holder reflections, Chainlink VRF lottery, and cross-chain bridge functionality.
Embark! upon your inevitable Web3 journey. From newsletters specifically curated for beginners to getting airdropped your very first NFT all for the grand fee of $free.99. Experience it all with us at Embark!
Lottery contracts written in solidity with various functionality where people can enter the lottery and win lottery in some given elapsed time.
random-bridge is an off-chain serverless worker syncing entropy from one blockchain to another
A lottery that uses ChainLink VRF V2 as an element of randomness.
Chainlink contracts and test framework utilizing hardhat to showcase basic LINK contracts
It is decentralize lottery that will select a random winner and also keep update of winner that is implemented with chainlink library.
A Decentralised Raffle powered by Chainlink's VRF and Automation tools.
A dog nft, can be minted by anyone and one of the dogs will be randomly assigned to the person randomly using VRF2.5
Smart contract lottery that utilizes Chainlink VRF to randomly select winners and Chainlink Automation to initialize a winner pick and restart of the lottery
an web3 dapp to play lottery, used chainlink to get random numbers and automate picking winner at certain interval
드래곤 NFT의 생성, 교배, 임대 등 상호 작용을 가능하게 하고, Chainlink VRF를 활용하여 무작위성을 보장하는 NFT 스마트 컨트랙트
EVM compatible Dapp built with React/Hardhat/Chainlink-VRF2 => Flip a coin to double your ETH!
Uses Chainlink's Verifiable Random Function to implement a lottery on Ethereum network
A decentralized dice rolling game built on Ethereum using Chainlink VRF for fair randomness. Developed with Solidity, Hardhat, and React (Ethers.js).
Multi-Oracle DeFi is a Web3 ecosystem integrating a Lending-Borrowing protocol, ERC4626 Vault, and NFT minting with Chainlink VRF. Built with Solidity, Chainlink, OpenZeppelin, and React, it leverages Push Protocol and the Sepolia Testnet for seamless DeFi automation and advanced interoperability.
This is a decentralized raffle contract that enables players to participate in a lottery game
Lottery Contract with Chainlink VRF2 and Chainlink Automation built with Hardhat
Lesson 9 of 32 hours course about Web3 fullstack by freecodecamp
An NFT Contract will mint one of the four Houses of Hogwarts
A suite of smart-contracts for secure raffles built with Foundry and fuzz-testing to ensure reliability. Integrates Chainlink VRF for verifiable randomness, enabling tamper-proof, decentralized raffle functionality.
Leaning to deploy a contract on a test-net and interacting with the contract deployed on the blockchain
A decentralized raffle, that allows players to participate in the raffle by paying an entrace fees. Chainlink keepers trigger the raffle after a specific interval, the winner is then credited with the contract balance.
Smart contracts for Web3 lottery DApp using Chainlink VRF
Raffl allows users to create and participate in raffles and lotteries with complete transparency, security, and fairness.
A gold-pegged ERC20 token system with cross-chain bridging capabilities between Ethereum and BSC. Features Chainlink price feeds for gold pricing, VRF-powered lottery mechanics from transaction fees, and CCIP for secure cross-chain transfers.
Player vs player betting on Polygon, using custom ERC20 token and Chainlink VRF.
Explore the future of gaming with our Lottery Game—a decentralized experience using Chainlink VRFs for on-chain randomness. Join, play, and win as we redefine transparency and excitement in the world of blockchain lotteries.