Data sources, attribution & licenses

AutonoMath ingests Japanese public-program data from 14 primary sources. This page discloses the source agency, record count, license terms, and the exact attribution string each source requires — so tax accountants (税理士), administrative scriveners (行政書士), labor & social security attorneys (社労士), SaaS developers, and downstream LLM agents can perform due diligence and design correct attribution for any further redistribution.

Counts in the table below are a snapshot as of 2026-04-26. Live counts continuously refreshed; see the fact sheet and changelog for the latest values.

14 primary data sources

Data source	Records	License	Required attribution
e-Gov laws (Digital Agency)	9,484 laws	CC BY 4.0	"Legal text from the e-Gov laws data service (CC BY 4.0)". State any modifications.
NTA Qualified Invoice Issuer registry	13,801 invoice_registrants (delta)	PDL v1.0 (Public Data License for government data)	"Republished from the National Tax Agency's Qualified Invoice Issuer public registry" + editorial note (fetch timestamp + whether records were edited).
Ministry of Economy, Trade and Industry (METI) — subsidies, enforcement	part of 10,790 programs / 1,185 enforcements	Government Standard Terms of Use v1.0	"Source: Ministry of Economy, Trade and Industry"
Ministry of Agriculture, Forestry and Fisheries (MAFF) — subsidies, adoption case studies	part of 10,790 programs / 2,286 case_studies	Government Standard Terms of Use v1.0	"Source: Ministry of Agriculture, Forestry and Fisheries"
Ministry of Land, Infrastructure, Transport and Tourism (MLIT) — enforcement	part of 1,185 enforcements	Government Standard Terms of Use v1.0	"Source: Ministry of Land, Infrastructure, Transport and Tourism"
Ministry of Health, Labour and Welfare (MHLW) — pharmaceutical & medical enforcement	part of 1,185 enforcements	Government Standard Terms of Use v1.0	"Source: Ministry of Health, Labour and Welfare"
Ministry of the Environment — industrial-waste enforcement	part of 1,185 enforcements	Government Standard Terms of Use v1.0	"Source: Ministry of the Environment"
47 prefectural governments — subsidies, enforcement	part of programs / enforcements	Each prefecture's terms of use (most align with Government Standard Terms of Use v1.0)	Name each prefecture (e.g. "Source: Tokyo Metropolitan Government", "Source: Osaka Prefecture")
Japan Finance Corporation (JFC) — loan programs	108 loan_programs	proprietary (publicly-disclosed information only)	"Source: Japan Finance Corporation" (with linked URL)
Japan Patent Office (JPO) and IP High Court — patent decisions	part of 2,065 court_decisions	Public judgments (public domain)	"Source: Japan Patent Office / IP High Court"
Public bids (NEXCO / JR / UR / others)	362 bids	proprietary (publicly-disclosed information only)	"Source: each contracting agency" (NEXCO Central Japan / JR East / UR Urban Renaissance Agency, etc., named individually)
Japan Science and Technology Agency (JST) — adoption case studies	part of case_studies	proprietary (TOS-restricted; collected during data-collection phase)	"Source: Japan Science and Technology Agency"
Public-interest foundations / industry associations — subsidies	part of programs	varies (per-source)	Name each entity (e.g. "Source: XX Foundation, public-interest incorporated foundation")
National Tax Agency notices (tax_rulesets)	35 tax_rulesets	NTA notices (publicly disclosed; public domain)	"Source: National Tax Agency" + notice number

Aggregator policy

AutonoMath does not use second-tier aggregators such as noukaweb, hojyokin-portal, or biz.stayway in source_url.

Past incidents proved that citing aggregator pages let stale amounts, expired programs, and fabricated eligibility requirements flow straight into AI agent responses. From the user's perspective, it looks like AutonoMath lied; in the worst case, it leads to incorrect benefit projections or improper applications — which is fraud risk by another name.

So AutonoMath enforces an aggregator ban on source_url in both code (banlist) and operations (manual review). source_url values are restricted to primary sources — ministries, prefectures, Japan Finance Corporation, NTA, e-Gov, etc. Over 99% of rows carry both source_url and fetched_at; the remaining ~12 rows belong to small municipalities that do not run a public CMS.

License legend

CC BY 4.0 (Creative Commons Attribution 4.0 International) — redistribution, modification, and commercial use permitted with attribution. e-Gov laws are licensed under CC BY 4.0.
PDL v1.0 (Public Data License v1.0 for Japanese government data) — downstream API redistribution permitted with attribution. The NTA Qualified Invoice Issuer registry is under PDL v1.0; on 2026-04-24 we directly verified the terms of use and confirmed downstream redistribution as a paid (¥3/req) API is permitted.
Government Standard Terms of Use v1.0 — the standard public-data terms used by Japanese ministries and local governments. Reproduction, public transmission, translation, transformation, adaptation, and commercial use are all permitted with attribution and disclosure of any modifications.
public domain — not subject to copyright (e.g. published court judgments, NTA notices); free to use with attribution.
proprietary (publicly-disclosed information only) — the source agency retains copyright, but AutonoMath only ingests information already publicly published, with source_url attribution. Commercial-redistribution licensing will be re-evaluated immediately before launch.

Machine-readable attribution

Every row in programs, case_studies, loan_programs, enforcement_cases, laws, etc. carries source_url (primary-source URL) and fetched_at (fetch timestamp). Both are returned by every API and MCP tool response. See the API reference and the MCP tools reference.

If you find a stale source URL, a broken link, or a discrepancy between the data and the primary source, please email [email protected]. The dispute will be re-checked against the primary source and resolved within 48 hours (business days).

Right to be forgotten

For removal requests against the Qualified Invoice Issuer registry data ("the registration was withdrawn but is still indexed", "I am a sole proprietor and revoked the public listing of my trade name", etc.), email [email protected] with your corporate number / registration number / trade name. Records are removed or hidden within 48 hours (business days). See the privacy policy (JP).

Contact

Questions about this page, requests to add a new data source, or license clarifications: [email protected] — goes directly to the operator, who replies within 48 hours (business days).

Operated by Bookyou Inc. (Bookyou株式会社, corporate number T8010001213708, 2-22-1 Kohinata, Bunkyo-ku, Tokyo), CEO Shigetoshi Umeda (梅田茂利). Verify the company on the NTA public registry.