PayPal AI Hackathon Featured Online Build what’s next with PayPal and AI $67,500 in prizes Nov 12, 2026 03:00 PM EST to submit 11526 participants
RevenueCat Shipaton 2026 Online Ship apps and start making money. $740,000 in prizes Winners TBD 28630 participants
Agentic Cinema: The Blockbuster Hackathon Online Lights. Camera. Code. $75,000 in prizes Winners TBD 10111 participants
Hack for Humanity | Summer 2026 Online AI for Mental/Physical Health and Concussion Recovery $100 in prizes Winners announced 1359 participants
The WebMCP Challenge Online 10 days for exploring what’s possible with WebMCP $35,000 in prizes Winners announced 7057 participants
The Great Agent Hackathon Bengaluru, India Build AI agents for the enterprise ₹ 100,000 in prizes Jul 23 – Aug 31, 2026 657 participants
Build with Gemini XPRIZE Online $2,000,000 in prizes. Build with Gemini. Ship products that impact the world. $2,000,000 in prizes Winners announced 26419 participants
OpenAI Build Week Online Join a global week of building with Codex $100,000 in prizes Winners announced 46686 participants
Slack Agent Builder Challenge Online Whether it's your first agent or your fiftieth - Slack is where it ships. $42,000 in prizes Winners announced 4418 participants
Google Cloud Rapid Agent Hackathon Online Building Agents for Real-World Challenges $60,000 in prizes Winners announced 14446 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
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 4297 participants
The Future of Health Hackathon Zürich, Switzerland Hack with impact €11,775 in prizes May 2, 2026 11 participants
Accel + Anthropic | Dev Day Community Showcase Bengaluru, India Share what you’ve built using Sonnet 4.5 and showcase your demos to India’s top CTOs, product leaders, and the Anthropic team. Non-monetary prizes Oct 1 – 6, 2025 201 participants
World’s Largest Hackathon presented by Bolt Online Build with AI for a shot at some of the $1M+ in prizes. $1,037,500 in prizes Winners announced 128316 participants
