Yibei Wang (xiangwademimi)

Kiroween 2026

Online

Build something wicked and git commit to the darkness.

$100,000 in prizes
Dec 04, 2026 05:00 PM EST to submit
10749 participants

The WebMCP Challenge

Online

10 days for exploring what’s possible with WebMCP

$35,000 in prizes
Winners announced
7042 participants

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46658 participants