Onchain AI, Built in a Weekend: 0G at ETHGlobal Cannes
At EthCC Cannes, we hosted keynotes, showcased our ecosystem, and carved out calm in the chaos with curated wellness. It was a moment for focused building and celebration. But once ETHGlobal kicked off, we went heads down and challenged developers to go beyond the demo, and they delivered.
Over three days on the French Riviera, more than 800 hackers competed for $275K in prizes supported by 27 leading protocols. 0G sponsored a $5,000 track focused on modular, verifiable AI infrastructure.
The results? Twelve working prototypes → 100% code submission and successful 0G integration → Eleven projects using 0G Compute → Three using 0G Storage.
These weren’t just weekend hacks: they were early signals of a shift away from centralized AI and toward open, composable systems where logic, compute, and data move seamlessly onchain. At the top of the leaderboard? Projects that brought that future to life. Let’s break them down.
Weekend Winners
The best builds didn’t just meet the bar, they exceeded it. These top three projects stood out for their originality, technical execution, and alignment with 0G’s vision: AI that’s verifiable, composable, and fully onchain. Each one showed what’s possible when builders have the right infrastructure and a weekend to prove it.
🥇 AInfluencer (Showcase | Code)
In first place was AInfluencer: an autonomous, onchain AI influencer that generates and uploads YouTube content based on subscriber input. Built with a full 0G Compute integration, AInfluencer routes every prompt through verifiable inference and outputs content with zk-proof-backed transparency.
It’s a striking example of an AI agent not just thinking independently, but publishing publicly, with trust built in.
🥈 PrivyCycle (Showcase | Code)
In second, we had PrivyCycle: a decentralized period tracking app that gives users full control over their health data. In addition to local data ownership and private sharing, PrivyCycle uses 0G Compute to deliver AI-powered insights: recommendations tailored for partners, physicians, or users themselves.
It’s a compelling use of AI and privacy working in tandem, with infrastructure that puts people in control of their data.
🥉 Warriors AI-rena (Showcase | Code)
Taking home the bronze was Warriors AI-rena: a blockchain-based battle arena where gameplay is driven by autonomous, evolving agents. The team used 0G Compute for real-time battle logic and 0G Storage for decentralized game metadata. They also implemented a basic version of intelligent NFTs (iNFTs), giving onchain characters memory and autonomy.
The result was a glimpse into the future of AI-native gaming: adaptive, transparent, and composable from the start.
Honorable Mentions
Beyond the top three, a wave of standout projects pushed the boundaries of what’s possible with modular infrastructure. From games and oracles to identity tools and educational apps, these teams showed just how versatile the 0G stack can be, bringing fresh ideas to life across sectors in just 72 hours.
- Solidity Cell: An escape-room-style Solidity game with 0G-powered puzzle hints
- Braivo: Decentralized image storage using 0G Storage
- Negravis: AI-native oracle with agent-powered data verification
- Block Survivor: Top-down survival game with real-time AI-adjusted difficulty via 0G Compute
- SparkMind: Verifiable AI tutors built on 0G storage
- FairBnb: Zk-native property listing with 0G-backed ownership proofs
- TrueCast: Decentralized news with 0G-driven fact-checking
- ContractObituarie: Smart contract analyzer powered by 0G Compute and Storage
- Context Passport: Digital passport for context portability across AI apps
Why the Weekend Mattered
ETHGlobal Cannes wasn’t just a weekend of hacking. It was a statement: the future of AI belongs onchain, and developers want infrastructure that’s modular, composable, and powerful from day one. The creativity we witnessed speaks to a broader shift toward programmable, decentralized intelligence. We couldn’t be more excited to build alongside these teams and to see where decentralized AI goes next.