{"uid":"cap_ha9xTWQxBmELPVTkxDmcY","slug":"japan-stablecoin-payment-monitor-dd93ea71","name":"Japan Stablecoin Payment Monitor","description":"Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported assets and chains, and closures. Each event is dated, categorized and tied to an official source URL. Pass changedSince=YYYY-MM-DD (your last run date) to fetch only new events; an empty changes list explicitly means no change. Without changedSince you get the full dated history back to late 2025.","url":"https://open-pay.jp/api/paid/usdc/stablecoin-payments","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"string","description":"1-200 (default 200). In delta mode the limit is rounded up to a date boundary: a single day is never split, so a day holding more events is returned whole. Continue with nextChangedSince while hasMore is true."},"changedSince":{"type":"string","pattern":"^\\d{4}-\\d{2}-\\d{2}$","description":"Return only events on/after this date (YYYY-MM-DD). Set to your last run date. Omit for the full history."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Nd_ImYlG6QBAccYW6DGLa","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a dated change feed of stablecoin payment service events in Japan, including new launches, pilots, partnerships, fee changes, supported assets/chains, and closures, filterable by date.","exampleAgentPrompt":"What stablecoin payment service changes happened in Japan since 2025-06-01 — any new launches, pilots, fee updates, or closures?","exampleUseCases":[{"title":"Weekly stablecoin market briefing","prompt":"Pull all stablecoin payment events in Japan since last Monday so I can include them in my weekly fintech newsletter."},{"title":"Competitor fee change alert","prompt":"Check if any stablecoin payment providers in Japan changed their fees or added new supported chains since 2025-05-15."},{"title":"New USDC acceptance tracker","prompt":"I want to know about every new USDC payment pilot or launch in Japan since the start of this year — can you grab the full list?"}],"resultDescription":"A list of dated events describing changes in Japan's stablecoin payment ecosystem, each with an event category (launch, pilot, partnership, fee change, asset/chain addition, closure), the date of the event, and a source URL pointing to official documentation or announcements. If changedSince is provided and nothing changed, an explicit empty list is returned.","failureModes":["Invalid changedSince date format (must match YYYY-MM-DD) returns a validation error","limit out of range (>200 or <1) may return an error or be clamped","No events found returns an empty changes list (not an error)","Payment failure for the $0.01 USDC x402 fee results in a 402 response blocking access","Service may return stale data if the weekly update has not yet run"],"whenToPreferThis":"Use this endpoint when you need a structured, sourced, and dated audit trail of changes to Japan's stablecoin payment services landscape — especially in automated monitoring pipelines that run on a schedule and only need incremental updates via changedSince. Prefer this over general web search when you need machine-readable events with official source citations rather than news articles.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:35:46.901Z","isFirstParty":false}