{"uid":"cap_UBo2IqO9VH6NzQ_Y5ZPfk","slug":"japan-upcoming-grants-api-f924eb0d","name":"Japan Upcoming Grants API","description":"Stop scraping Japanese government and public-data sites. Call clean Japan payroll, company, and grant APIs over one host. Preview free; one public marketplace listing covers all current products; x402 direct is available for agent-native buyers.","url":"https://api.kasanegi.com/v1/grants/upcoming","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"input":{"type":"object","required":["method"],"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"days":{"type":"integer","default":90,"maximum":90,"minimum":1,"description":"Window in days 1-90."},"limit":{"type":"integer","default":10,"maximum":50,"minimum":1,"description":"Max items 1-50."},"prefecture":{"type":"string","description":"Prefecture filter."}}}}}}},"responseSchema":{"type":"json","mimeType":"application/json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FTzVapUoFePRbv-aqojVn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a list of upcoming Japanese government and public grant opportunities, filterable by prefecture and time window","exampleAgentPrompt":"Show me upcoming government grants available in Kanagawa Prefecture over the next 60 days — return up to 20 results.","exampleUseCases":null,"resultDescription":"A JSON array of upcoming Japanese public grant opportunities, each with grant name, deadline, eligibility details, and prefecture, filtered by the specified time window and prefecture.","failureModes":["Invalid prefecture name returns empty results or 400 error","days parameter out of range (>90 or <1) returns 400 validation error","limit out of range (>50 or <1) returns 400 validation error","No grants found for the given filters returns empty array","Payment not fulfilled returns 402 Payment Required","Rate limit exceeded returns 429"],"whenToPreferThis":"Use this endpoint when you need structured, clean data on upcoming Japanese government grant opportunities without scraping official Japanese government sites. Prefer this over manual scraping when you need prefecture-level filtering or want machine-readable results. Particularly useful for agents helping Japanese businesses discover public funding opportunities within a defined time window.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:57:24.303Z","isFirstParty":false}