xavierjohncharles John-Charles (xavierjohncharles)

London, United Kingdom
Website
GitHub

CALL-E: Your Code Is Calling

Online

Turn your code into an AI agent that makes real phone calls.

$10,000 in prizes
Winners announced
3199 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 TBD
12265 participants

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46675 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

AI Partner Catalyst: Accelerate Innovation

Online

Accelerating innovation through the Google Cloud partner ecosystem

$75,000 in prizes
Winners announced
6924 participants

HackitRx Singapore 2025

Singapore, Singapore

Transform healthcare at HackitRx 2025! Techies, clinicians, innovators, bring your ideas to shape Singapore's health future!

$1,000 in prizes
Aug 1 – 24, 2025
149 participants

Qloo LLM Hackathon

Online

Join Qloo’s first global hackathon, a month-long event inviting developers, builders, and creatives to explore what’s possible at the intersection of LLMs and Qloo’s API.

$25,000 in prizes
Winners announced
2847 participants

AfroTech AI Hackathon

Online

Engineering Innovation, Elevating Impact

$15,000 in prizes
Winners announced
786 participants