Ship It: The Product Builders' Hackathon San Francisco, CA, USA Ship your idea in under 3 hours with Replit × Mixpanel AI Non-monetary prizes Nov 5, 2026 8 participants
Cal Hacks 13.0 San Francisco, CA, USA This year's Cal Hacks is presented by Anthropic, Annapurna Labs, Spacetime, and Hyphenate! Together we'll assemble in SF for a weekend of hacking, friendship, and crazy ideas. $204,408 in prizes Oct 23 – 25, 2026 1917 participants
Production Agents Hackathon San Francisco, CA, USA Creators Corner invites you to turn bold ideas into action with an exclusive AI Agents hackathon. Join us to build AI agents that push the limits of LLMs and AI applications! $22,300 in prizes Nov 21, 2025 172 participants
DevNetwork [API + Cloud + Data] Hackathon 2025 Santa Clara, CA, USA Join the nation's largest challenge-driven API + Cloud + Data hackathon @ API World 2025! $2,000 in prizes Aug 17 – Sep 5, 2025 712 participants