Categories › Knowledge & Everyday › Government & public data
Japan data tools for AI agents: calendar (rokuyo), address, name splitting, corporate number lookup
Remote server: your requests and data go to shirabe.dev. Claude Code: claude mcp add --transport http shirabe-japan-data-hub https://shirabe.dev/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
lookup_calendar — Look up Japanese calendar information for a given date: Rokuyo (six-day cycle such as Taian/Butsumetsu), Rekichu (almanac notes), Eto (sexagnormalize_japanese_address — Normalize a free-form Japanese address against the official Address Base Registry (ABR, all 47 prefectures). Returns the canonical form, strsplit_japanese_name — Split a Japanese personal name into family and given parts using IPAdic person-name POS tags (with whitespace/length heuristics as fallback)corporation_lookup — Look up a Japanese company by its 13-digit corporate number (法人番号) against the National Tax Agency (NTA) corporate-number registry. Returns corporation_search — Search the Japanese corporate-number registry (National Tax Agency) by company name and return matching companies, each with its 13-digit coNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.