kuma gaias (kumagaias)

Kiroween 2026

Featured

Online

Build something wicked and git commit to the darkness.

$100,000 in prizes
Submissions open soon
1637 participants

PayPal AI Hackathon

Online

Build what’s next with PayPal and AI

$67,500 in prizes
Nov 12, 2026 03:00 PM EST to submit
22477 participants

OpenCV AI Competition 2026, powered by AWS

Online

Build vision systems that see, reason, and act with OpenCV 5 and Amazon Web Services (AWS). Win money and bragging rights!

$20,250 in prizes
Voting opens soon
6364 participants

Build, Ship, Shape: Amazon Developer Hackathon

Online

Build across Amazon Devices and shape what's next.

$138,000 in prizes
Winners TBD
65052 participants

RevenueCat Shipaton 2026

Online

Ship apps and start making money.

$740,000 in prizes
Winners announced
28576 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

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46670 participants

Reddit’s Games with a Hook Hackathon

Online

Join Reddit and Phaser to build incredible games for the Reddit community!

$40,000 in prizes
Winners announced
3062 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
4406 participants

H0: Hack the Zero Stack with Vercel v0 and AWS Databases

Online

Front-end in minutes. Back-end designed for scale.

$80,000 in prizes
Winners announced
9715 participants

Google Cloud Rapid Agent Hackathon

Online

Building Agents for Real-World Challenges

$60,000 in prizes
Winners announced
14431 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

Build with MeDo Hackathon

Online

Build creative applications with MeDo, no coding required. Push the boundaries of what you can create.

$50,000 in prizes
Winners announced
8337 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
4290 participants

GitLab AI Hackathon

Online

You Orchestrate. AI Accelerates.

$65,000 in prizes
Winners announced
6921 participants

Amazon Nova AI Hackathon

Online

Build your way with Amazon Nova

$40,000 in prizes
Winners announced
13402 participants

Gemini Live Agent Challenge

Online

Redefining Interaction: From Static Chatbots to Immersive Experiences

$80,000 in prizes
Winners announced
11818 participants

DeveloperWeek 2026 Hackathon

San Jose, CA, USA

Join the nation's largest challenge-driven in-person and online hackathon @ DeveloperWeek 2026!

$23,000 in prizes
Feb 2 – 20, 2026
1797 participants

RevenueCat Shipyard: Creator Contest

Online

Collaborate with creators to build their app in 1 month

$165,000 in prizes
Winners announced
7042 participants

The Reddit Daily Games Hackathon

Online

Join Reddit and GameMaker to build incredible daily games for the Reddit community!

$40,000 in prizes
Winners announced
2976 participants

Play Everywhere: The Build with Snap Games Lensathon

Online

Build a Game for Snapchat Using Lens Studio

$30,000 in prizes
Winners announced
1032 participants

Codegeist 2025: Atlassian Williams Racing Edition

Online

Accelerate innovation: Build on Forge, extend Jira, Confluence, Bitbucket, and more— win your share of $120K.

$120,000 in prizes
Winners announced
3504 participants

Kiroween

Online

Build something wicked for Kiroween, our annual Halloween-themed hackathon where developers dare to code in dark mode

$100,000 in prizes
Winners announced
4967 participants

Reddit and Kiro: Community Games Challenge

Online

Reddit and Kiro are hosting a virtual hackathon for the best community game!

$45,000 in prizes
Winners announced
1925 participants