Built with Claude: Japan 2026
Hosted by Cerebral Valley
Register with organizer
What to look forward to
Anthropic’s first nationwide online Japan hackathon will challenge up to 250 selected participants to build useful tools with Claude Code in just one week, drawing on personal expertise and tackling shared social challenges. Participants will receive Claude Code and API credits, with winners awarded $50,000 in API credits.
Inside the event
Anthropic’s first nationwide online Japan hackathon will challenge up to 250 selected participants to build useful tools with Claude Code in one week, from ideas rooted in personal expertise to solutions for shared social challenges. Participants will receive Claude Code and API credits, with $50,000 in API credits awarded to winners.
A seat from anywhere.
Register with the organizer for joining instructions and the event link.
Discovered through Cerebral Valley. Details come from the event listing; registration is managed by the organizer.
Last checked: Oct 14, 2026. Confirm current availability before making plans.