Hack for Humanity | Summer 2026 Online AI for Mental/Physical Health and Concussion Recovery $100 in prizes Winners announced 1356 participants
DevNetwork [API + Cloud + AI] Hackathon 2026 Santa Clara, CA, USA Join the nation's largest challenge-driven API + Cloud + AI hackathon @ API World 2026! $39,500 in prizes Aug 17 – Sep 3, 2026 1372 participants
All Things Agentic Hackathon Online Ready, Set, Agent! Build next-generation agents that run in the background, handle the heavy lifting of massive datasets, and automate complex workflows asynchronously. $180,000 in prizes Winners announced 12258 participants
Pinch Me! I Want 50K: A Nationwide Australian Payments & Fintech Hackathon Haymarket, Australia Build with the Pinch Payments API and compete for $50,000 cash. $50,000 in prizes Jun 23 – Jul 22, 2026 267 participants
FIND EVIL! by Rob T. Lee Online AI threats strike in minutes. Build the defender that responds in seconds. $22,000 in prizes Winners announced 4387 participants
Beyond Tomorrow Summit Online CODE THE FUTURE | SHAPE THE WORLD $2,000 in prizes Winners announced 752 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 3088 participants