Hidehito Tsuruta (hide-atcoder1)

Tokyo, Japan

DevNetwork [API + Cloud + AI] Hackathon 2026

Santa Clara, CA, USA

Join the nation's largest challenge-driven API + Cloud + AI hackathon @ API World 2026!

Non-monetary prizes
Aug 17 – Sep 3, 2026
138 participants

United Hacks V7

Online

Showcase both your technical and presenting abilities and collaborate with like minded individuals to make and pitch a project during United Hacks V7.

$26,350 in prizes
Submissions open soon
662 participants

FIND EVIL!

Online

AI threats strike in minutes. Build the defender that responds in seconds.

$22,000 in prizes
Winners TBD
4421 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
3105 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
4320 participants

LEVIATHAN Hackathon [AXI0M x Lovable]

Fife, United Kingdom

Leveraging AI to build human systems - Sponsored by lovable

$300 in prizes
May 2 – 3, 2026
41 participants

Learning Hackathon: Spec Driven Development

Online

Great AI projects start with great planning. Learn the process with Claude Code and apply it to yours.

Non-monetary prizes
Winners TBD
1257 participants

EcoHack

Online

Create sustainable solutions

Non-monetary prizes
Winners announced
302 participants