Solidity INFRASTRUCTURE Projects: 8+ Open-Source Examples

Browse 8+ open-source Solidity INFRASTRUCTURE projects from ETHGlobal hackathons. Find production-ready code, learn from winning implementations, and discover inspiration for your next blockchain build.

Discover Solidity infrastructure contracts from Web3 hackathons. Find bridge implementations, relayer systems, and protocol upgrades with auditable, well-documented code.

Showing 8 projects sponsored by CELO.

Calary

Calary: Compliance toolkit empowering killer consumer dApps with on-chain payroll, swaps & rewards.

Soliditydefinftinfrastructureprivacy

🏆 Celo L2 Pool Prize (Celo)🏆 Uniswap v4 Hook IntegrationsRunner Up (Uniswap Foundation)

ETHGlobal Taipei • 2025

Trusted-Jobs

Onchain job platform with Self Protocol-based compliance checks and escrowed smart contract rewards.

SolidityRustNext.jsNode.jsinfrastructureprivacy

🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025

fortun3.guru

A decentralized, AI-powered horoscope engine that turns your blockchain data into prophecy.

SolidityReactnftinfrastructure

🏆 World Pool Prize (World)🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025

VoteGuard

VoteGuard lets you prove your vote is valid without revealing who you are or what you chose.

SolidityRustNext.jsdaoinfrastructureprivacy

🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025

SaveFi

AI-powered DeFi savings with rewards for discipline and penalties for delays

SolidityTypeScriptNext.jsdefinftinfrastructureprivacy

🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025

Taifei Bazaar

Taifei Bazaar: 2D DeFAI multiplayer arena inspired by Taiwanese night markets - Explore AI stalls

SolidityReactRustNext.jsNode.jsdefinftinfrastructuregamingsocial

🏆 Everyday DeFi1st place (Rootstock)🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025

BrickFi

Tokenizes real-world assets, enhance liquidity, platform which bridge between TradFi and DeFi.

SolidityReactTypeScriptNext.jsdefinftinfrastructuresocial

🏆 Compliance Innovation Track2nd place (HashKey Chain)🏆 Celo L2 Pool Prize (Celo)🏆 Real World Assets (Polygon)

ETHGlobal Taipei • 2025

NameFlow

NameFlow is an AI-driven gateway for domain-based identity, seamlessly managing on-chain records.

SolidityReactRustNext.jsdefinftdaoinfrastructuregamingsocialprivacy

🏆 World Pool Prize (World)🏆 Celo L2 Pool Prize (Celo)

ETHGlobal Taipei • 2025