{"uid":"cap_xkKDAw1QAWGpV5x5S-yWt","slug":"selectarank-jgb-yields-japan-government-bond-yield-lookup-888e20a6","name":"SelectaRank JGB Yields — Japan Government Bond Yield Lookup","description":"Pay-per-call access to public-domain data (USGS earthquakes, NOAA/NWS forecasts, World Bank indicators) plus an x402 endpoint pre-payment checker over x402 on Base USDC. No account or API key.","url":"https://selectarank-data.vercel.app/v1/jp/jgb-yields?utm_source=zero.xyz","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":{"date":{"type":"string","description":"Optional YYYY-MM-DD; returns that trading day"},"days":{"type":"string","description":"Latest N trading days, 1-60 (default 1)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"data":[{"date":"2026-08-31","yields":{"10Y":2.943}}],"meta":{"source":"Ministry of Finance, Japan"},"unit":"percent","tenors":["1Y","2Y","10Y"]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ha_QCQ5Gi_EZiLUwJNR0s","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns Japan Government Bond (JGB) yield data for one or more trading days, sourced from the Ministry of Finance Japan, covering multiple tenors (1Y, 2Y, 10Y, etc.).","exampleAgentPrompt":"What are the Japan government bond yields across all tenors for the last 3 trading days? I need the 1Y, 2Y, and 10Y rates.","exampleUseCases":[{"title":"Daily JGB yield snapshot for macro dashboard","prompt":"Pull today's Japan government bond yields for all available tenors so I can update my macro rates dashboard."},{"title":"Historical JGB yield on specific date","prompt":"What were the Japanese government bond yields on March 15, 2025? I need the full tenor breakdown from the Ministry of Finance data."},{"title":"30-day JGB trend for analysis","prompt":"Fetch the last 30 trading days of Japan government bond yield data so I can analyze the trend in 10-year JGB rates."}],"resultDescription":"Returns a JSON object with an array of trading-day records, each containing the date and a yields map keyed by tenor (e.g. 1Y, 2Y, 10Y) in percent. Also includes metadata indicating the source (Ministry of Finance, Japan), the unit (percent), and the list of available tenors.","failureModes":["Date not a valid trading day — returns empty data or error if market was closed on requested date","Days parameter out of range (>60 or <1) — may return validation error","Date in future — no data available, empty or error response","Data source temporarily unavailable — upstream Ministry of Finance data feed may lag","Invalid date format — must be YYYY-MM-DD or request fails"],"whenToPreferThis":"Choose this endpoint when you need Japan Government Bond yield data sourced directly from the Ministry of Finance Japan, with no API key required, pay-per-call via USDC on Base. Prefer this over scraping or general financial data APIs when you need structured, multi-tenor JGB data for specific historical dates or recent trading windows up to 60 days.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T03:05:21.753Z","isFirstParty":false,"canonicalSlug":"selectarank-jgb-yields-japan-government-bond-yield-lookup-888e20a6"}