
Saturn
Turn Japan's public data into an AI-ready spreadsheet WS
64 followers
Turn Japan's public data into an AI-ready spreadsheet WS
64 followers
Saturn integrates EDINET filings, gBizINFO, and corporate registries into a single spreadsheet UI. Define columns, and AI handles the rest β company research in 30 sec, invoice transfer from 8 hours to 5 min, resume screening at 100/day. Works via UI, API, and MCP (22 tools for AI agents).






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Saturn
Hi PH! I'm a solo founder in Tokyo building Saturn. We also won The Biggest Engineering Lift award at YC Hackathon c0mpiled-7 (March 2026) β building AI agents that work with real-world data is what we do.
Japanese business data is scattered across dozens of government portals β EDINET, gBizINFO, corporate registries β each with different formats and no easy way to combine them.
Saturn pulls it all together into a spreadsheet you already know how to use. Add a column, and AI enriches your data automatically. No code, no pipelines.
Real use cases live in production:
- **Accounting**: COREC orders β freee invoices (100/day, 8 hrs β 5 min)
- **Recruiting**: Gmail resume PDFs β AI screening (100 apps/day)
- **Sales**: Trade show cards β same-day personalized follow-up
Built with Cloudflare Workers, MCP for AI agents, and open API.
YC application. Would love your feedback!