FIND EVIL! Online AI threats strike in minutes. Build the defender that responds in seconds. $22,000 in prizes Jun 15, 2026 11:45 PM EDT to submit 4238 participants
Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3108 participants
Agents Assemble - The Healthcare AI Endgame Online Build Interoperable Healthcare Agents at the Intersection of MCP, A2A, and FHIR $25,000 in prizes Winners announced 4325 participants
Build Resilient Apps with Polkadot Cloud Online Radically open, radically useful $40,000 in prizes Winners announced 2728 participants
Starknet Re{Solve} Hackathon Online Unlock tomorrow's apps: Ultra-low fees, Ethereum security, Bitcoin power $47,500 in prizes Winners announced 1474 participants
Bitcoin 2025 Official Hackathon Online Virtual Hackathon for the Bitcoin 2025 Conference in Las Vegas $58,750 in prizes Winners announced 831 participants
Agentforce Virtual Hackathon Online Build groundbreaking agents and compete for $140k in prizes $140,000 in prizes Winners announced 7206 participants
Electroneum Hackathon 2025 Online Create innovative, scalable, and functional apps on Electroneum $52,500 in prizes Winners announced 1327 participants
One Trillion Agents Hackathon Online Bring order to chaos. Buidl the resistance. $102,550 in prizes Winners announced 1997 participants
Block Magic: A Chainlink Hackathon Online Chainlink’s Block Magic hackathon accelerates developers’ onchain journey $547,000 in prizes Winners announced 1868 participants
Building Privacy in Web3 - Powered by Partisia's MPC Online Take on the challenge to create privacy preserving applications through zero knowledge computation $21,000 in prizes Winners announced 940 participants
Web5: Building the Decentralized Web Online Use your creativity to build a decentralized app using Web5.js $30,000 in prizes Winners announced 1630 participants