About
jpcite is a REST and MCP API that exposes Japanese public-program data — subsidies, loans, tax incentives, and certifications — to AI agents in a single call. 14,472 programs (11,684 searchable in tier S/A/B/C; 2,788 held back for secondary review), plus 2,286 case studies (採択事例), 108 loan offerings, and 1,185 enforcement cases, are normalized from primary sources (METI, MAFF, SME Agency, Japan Finance Corporation), scored into tiers (S/A/B/C/X), cross-linked with 181 exclusion / prerequisite rules, searchable via a Japanese full-text search index (3-gram), and every row carries source_url and fetched_at for lineage.
Why it exists
jGrants is Japan's application portal. It is not a discovery or compatibility layer. Asking "which subsidy matches this business, and which of them can be combined? has anyone like us actually been selected? which loan has no collateral and no guarantor? has any vendor been sanctioned?" still requires a human to browse ministry sites, download PDFs, cross-reference notice documents, and keep up with ad-hoc revisions. jpcite is that missing layer, packaged as an API that AI agents can actually call. MCP protocol version 2025-06-18; no SDK required.
Who built it
Operated by Bookyou株式会社 (invoice registration number T8010001213708, 2-22-1 Kohinata, Bunkyo-ku, Tokyo), represented by Shigetoshi Umeda (梅田茂利). Built and maintained solo — design, implementation, data ingestion, operations, and support are all handled by one person. Hosted on Fly.io Tokyo (nrt). Billed via Stripe Tax with Japanese qualified-invoice (適格請求書) compliance (registration number T8010001213708, assigned 2025-05-12).
Quick facts
| Programs indexed | 14,472 (11,684 searchable in tier S/A/B/C; 2,788 held back for secondary review) |
|---|---|
| Case studies (採択事例) | 2,286 |
| Loan programs (detailed) | 108 (with three-axis collateral / guarantor decomposition) |
| Enforcement cases | 1,185 |
| Laws (e-Gov CC-BY) | 154 full-text + 9,484 catalog stubs (body-text load incremental) |
| Tax rulesets | 50 |
| Court decisions | 2,065 |
| Bids | 362 |
| Invoice registrants | 13,801 (PDL v1.0 delta-only; full ~4M monthly bulk pending) |
| Entity-fact DB entities | 503,930 (across 12 record_kinds) |
| Entity-fact DB facts | 6.12M |
| Entity-fact DB relations | 177,381 (15 canonical relation types) |
| Primary-source coverage | 99%+ (source_url + fetched_at on every row; 12 small-municipality rows lack URL) |
| Exclusion rules | 181 (125 exclude + 17 prerequisite + 15 absolute + 24 other) |
| MCP tools | 89 at default gates, protocol 2025-06-18 (across program / case-study / loan / enforcement search, expansion datasets, the entity-fact DB, metadata tools, static dataset tools, and DD-support tools) |
| MCP protocol | 2025-06-18 |
| Region | Tokyo (Fly.io nrt) |
| Launch | 2026-05-06 |
Contact
Email: [email protected]. For press, the full kit (logos, founder bio, screenshots) is at /press/about.md. For Japanese legal disclosures (特定商取引法), see the JP tokushoho page.