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JP Grants API — Upcoming Japanese Government Subsidy Deadline Tracker
x402
JP Grants API — Upcoming Japanese Government Subsidy Deadline Tracker is a paid API for AI agents from jp-grants-data-api.kasanegi123.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Returns a list of upcoming Japanese government grant and subsidy deadlines within a specified time window, aggregated from J-Grants, Mirasapo Plus, and e-Stat sources.
Price / call$0.05
Success—
StatusUnknown
How this service works
Japanese government subsidy / grant deadline tracker for AI agents (J-Grants + Mirasapo Plus + e-Stat aggregated). x402 micropayments on Base. No API key.
Output
A JSON array of upcoming grant records each containing the grant name in Japanese, grant ID, responsible ministry, prefecture scope, exact deadline date, deadline type, urgency label, maximum subsidy amount in JPY, days until deadline, and an agent-actionable recommendation — plus attribution metadata from J-Grants and Mirasapo Plus sources, as-of date, and total count.
Example use cases
SME expansion funding alerts
“Check what government subsidies for small business expansion are closing in the next month across Japan. Let me know which ones offer the highest funding amounts and which prefectures they cover.”
Startup incubator deadline tracker
“I need to monitor all METI and innovation-related grants expiring within 3 weeks. Flag anything marked urgent and tell me which ones our portfolio companies might qualify for.”
Regional development grant scout
“What subsidies available specifically for businesses in Osaka and the Kansai region are coming up soon? Show me the ones with the shortest deadlines first so we can prioritize applications.”
Technical details
Endpoint
GEThttps://jp-grants-data-api.kasanegi123.workers.dev/api/grants/upcomingWhen to prefer
Use this endpoint when an AI agent needs to programmatically discover and track upcoming Japanese government subsidy and grant deadlines without maintaining its own database. It is ideal for Japanese SME support tools, startup advisors, or grant-monitoring workflows that need near-real-time aggregated deadline data from official sources like J-Grants and Mirasapo Plus, without requiring an API key. Prefer it over manual web scraping of jgrants-portal.go.jp or mirasapo-plus.go.jp, which is fragile and unstructured.
Side effects
- 402 Payment Required returned if x402 micropayment (0.05 USDC on Base) is not submitted — only a shape preview with placeholder fields is returned
- Empty data array if no grants fall within the requested deadline window
- Missing or partial data if upstream J-Grants or Mirasapo Plus sources are temporarily unavailable
- Prefecture filter returns no results if no grants match the specified region within the time window
- Non-UTF-8 rendering issues if client does not handle Japanese UTF-8 correctly
Output
Schema · Response
{
"type": "json",
"example": {
"data": [
{
"name": "<Upcoming grant name in Japanese UTF-8>",
"grant_id": "subsidy-99999",
"ministry": "meti",
"prefecture": "all",
"deadline_date": "2026-05-13",
"deadline_type": "fixed",
"urgency_label": "urgent",
"recommendation": "<phrase: full paid response returns 1-line agent-actionable recommendation>",
"_history_source": "<full paid response returns row-level provenance from jp_grants_history>",
"max_subsidy_amount": 1500000,
"days_until_deadline": 7
}
],
"_role": "shape_preview_echoes_query_for_paid_response",
"as_of_date": "2026-05-06",
"days_filter": 14,
"total_count": 5,
"_attribution": {
"j_grants": "Digital Agency J-Grants (jgrants-portal.go.jp)",
"mirasapo": "METI Mirasapo Plus (mirasapo-plus.go.jp)"
},
"_sample_note": "Unpaid 402 shape preview echoes the requested days window + prefecture filter; full paid response queries D1 jp_grants + Mirasapo live peek for grants with deadline within the window scoped to the prefecture.",
"prefecture_filter": null
},
"mimeType": "application/json"
}Tags
x402
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