Japan Government Subsidies & Grants (jGrants)

Structured English-schema data on Japanese government subsidy programs (補助金) — straight from the official jGrants API.

This Actor queries the public API of jGrants, the national subsidy application platform operated by Japan's Digital Agency (デジタル庁), and returns open subsidy calls as clean, English-field JSON: program title, granting institution, maximum amount in JPY, application window, target regions and company sizes. No scraping, no browser, no API key — two documented JSON endpoints, politely.

Unofficial tool. Not affiliated with or endorsed by the Digital Agency or the Government of Japan. This Actor uses the jGrants public API; every record embeds the source, the portal link, and the retrieval timestamp.

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Who is this for?

• Foreign-owned subsidiaries and their advisors — Japan runs thousands of subsidy programs (the jGrants platform lists on the order of 3,600), for equipment, IT adoption, R&D, energy efficiency, regional expansion. Most are announced only in Japanese. Track the ones your Japanese entity qualifies for.
• Consultants and grant advisories — monitor new calls and closing deadlines by purpose, industry, region, and company size, feeding your own pipeline instead of re-checking a portal.
• AI / data teams — build subsidy-matching tools on structured JSON with normalized ISO dates, instead of parsing a Japanese web portal.

What you get

• Server-side filtering by keyword, purpose, industry, target region, and company size — the same filters the official portal uses.
• Normalized fields: maxLimitAmountJpy (with the upstream's "0 = not specified" mapped honestly to null), ISO 8601 datetimes, acceptance windows, and a detailUrl that always points to the human-readable jGrants page.
• Optional detail enrichment (includeDetail: true): purpose and industry tags, subsidy rate, catch phrase, application periods, and attachment metadata (document type and file name).

Sample output (dataset item)

{
  "subsidyId": "a0WXXXXXXXXXXXX",
  "title": "小規模事業者持続化補助金（一般型）",
  "institutionName": "全国商工会連合会",
  "targetArea": "全国",
  "maxLimitAmountJpy": 2000000,
  "acceptanceStartDate": "2026-07-01T01:00:00.000Z",
  "acceptanceEndDate": "2026-09-30T08:00:00.000Z",
  "targetNumberOfEmployees": "20名以下",
  "detailFetched": false,
  "detailUrl": "https://www.jgrants-portal.go.jp/subsidy/a0WXXXXXXXXXXXX",
  "source": "jGrants（デジタル庁）",
  "sourceUrl": "https://www.jgrants-portal.go.jp/",
  "license": "jGrants public API terms (attribution required; confirm for your use case)",
  "retrievedAt": "2026-08-25T09:12:44Z"
}

Input example

{
  "keyword": "IT導入",
  "usePurpose": "設備整備・IT導入をしたい",
  "targetAreaSearch": "東京都",
  "acceptanceOnly": true,
  "includeDetail": true,
  "maxItems": 100
}

Filter values are matched verbatim against the portal's Japanese labels (the input schema lists working examples). A non-matching value returns zero hits with a warning — the Actor tells you instead of silently returning nothing forever.

Pricing

Pay per result — see the pricing tab. No subscription; a run that finds nothing new costs almost nothing.

FAQ

Where does the data come from? From the public API of jGrants (jgrants-portal.go.jp), the national subsidy application system operated by the Digital Agency. Every record carries source, sourceUrl, license, and retrievedAt fields, and detailUrl links to the official program page.

Is this an official government service? No. This is an unofficial tool, built and maintained independently. It is not affiliated with, operated by, or endorsed by the Digital Agency or any Japanese government body.

How complete is the coverage? The Actor returns what the jGrants API returns for your search. jGrants is the national platform, but not every Japanese subsidy is administered through it (some ministries and municipalities run their own schemes). We don't claim "all Japanese subsidies" — no single source can.

Why don't I get the application documents? The detail API embeds whole attachment files; this Actor deliberately keeps metadata only (document type and file name) and never outputs the binary content. It also never outputs the free-form program description HTML, because that field routinely contains office contact blocks (staff names, phone numbers, e-mails). This is a privacy-by-design decision, enforced by automated tests, not a missing feature. Use detailUrl to read the full program page on the official portal.

How fast is detail enrichment? The Actor limits itself to one connection with ≥1.2 s between requests, so enrichment throughput is about 50 records per minute, capped by a per-run request budget. Records beyond the budget still arrive with list-level fields and detailFetched: false, and the run summary reports whether enrichment completed. List-only runs are near-instant (the list endpoint returns all hits in one request).

What about rate limits? The Actor backs off exponentially on HTTP 429/5xx and fails visibly rather than hammering the API or evading limits. No proxy-rotation tricks, by design.

Search terms this Actor answers

Japan government subsidies · Japan grants for business · jGrants API English · 補助金 data · Japan subsidy database · government funding Japan · Japan SME subsidies · Japan R&D grants

More Japan public-data Actors by the same developer

• Japan Government Tenders & Awards — tender notices and award results (who won, at what price) from the kkj.go.jp portal.
• Japan Medical Facilities — every registered hospital, clinic, dental clinic, and pharmacy (MHLW open data).
• Japan Care Facilities — long-term care providers across 35 service types (MHLW open data, CC BY).
• Japan Renewable Energy FIT/FIP Facilities — METI-certified renewable installations, privacy-safe schema.
• Japan Financial Licenses & Registrations — FSA-licensed banks, securities firms, crypto exchanges and more.
• Japan Construction & Real-Estate Licenses — licensed contractors and brokers from MLIT's register.
• Japan Trade Statistics — monthly import/export flows by HS code and partner country, from Japan Customs.

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Data source: jGrants — 補助金電子申請システム（デジタル庁）— https://www.jgrants-portal.go.jp/ . This Actor uses the jGrants public API and states so in every record.