Tokyo Agent Hackathon
One-day AI agent hackathon in Tokyo: build by day, demo by evening. Teams of 1-6, Neo4j and ai& credits, 70 spots, English or Japanese.
- When
- Sat, October 17, 2026 · 09:30–18:00 JST
- Where
- Chiyoda City, Japan · In person
- Region
- Kanto (Tokyo)
- Organizer
- +81Builders
- Language
- JA/EN
- Source
- Luma
Summary
A one-day AI agent hackathon in Chiyoda, Tokyo, run by +81Builders around a simple idea: build through the day and demo working software by evening. Teams of 1 to 6 (solo entries welcome) form on the spot or arrive together, with a structured matchmaking session at 10:30 before hacking begins. Submissions close at 15:30, top teams demo live at 16:00, and awards follow at 17:00.
Sponsors include Neo4j, offering free credits and support for graph-based agent memory and retrieval, and ai&, a Japan-hosted GPU inference API serving open models such as Kimi and DeepSeek through OpenAI- and Claude-compatible endpoints. The theme and prizes will be announced closer to the date. The event is capped at 70 participants, food is provided throughout the day, and it runs in both English and Japanese, so participants need only one of the two.
About the community
+81Builders is a community for people building Japan's tech future, bringing together developers, designers, students, and founders. It runs hands-on build events such as hackathons in Tokyo, welcomes both English and Japanese speakers, and coordinates team-finding and announcements through its Discord.
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