{"uid":"cap_N6otucMB-nfB0M74eDVjE","slug":"us-treasury-auction-calendar-api-3d0dd0e3","name":"US Treasury Auction Calendar API","description":"Lists US Treasury auctions (bills, notes, bonds, TIPS, FRNs) in a date range: announced upcoming auctions and results of past ones (high yield/rate, bid-to-cover).","url":"https://market-calendar-api.onrender.com/v1/auctions?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"to":{"type":"string","description":"End date, max 92 days after start"},"from":{"type":"string","description":"Date YYYY-MM-DD. Default: today."},"term":{"type":"string","description":"Optional, e.g. 10-Year, 4-Week"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.013","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":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.013/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.013","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.013","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OtdCe6PKKEnY90Byx6TE-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.013","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Lists US Treasury auctions (bills, notes, bonds, TIPS, FRNs) within a date range, including announced upcoming auctions and historical results with yield/rate and bid-to-cover data.","exampleAgentPrompt":"Can you pull up all the US Treasury auctions scheduled between July 1 and July 31, 2025, and include any results like high yield and bid-to-cover for ones that have already happened? Filter it to just 10-Year notes if possible.","exampleUseCases":[{"title":"Weekly Treasury auction briefing","prompt":"Give me a list of all US Treasury auctions happening in the next two weeks, from today through July 20, 2025, so I can see what's coming up in the bill and note space."},{"title":"Post-auction yield analysis","prompt":"What were the high yields and bid-to-cover ratios for all Treasury auctions that took place last month, from June 1 to June 30, 2025? I want to track demand trends."},{"title":"Filtering auctions by term","prompt":"Show me every announced 2-Year Treasury note auction scheduled between August 1 and September 30, 2025, including any results if they've already settled."}],"resultDescription":"A list of Treasury auction records within the requested date range. Each record includes the security type (bill, note, bond, TIPS, FRN), the term (e.g. 4-Week, 10-Year), the auction date, and — for completed auctions — the high yield or high rate and the bid-to-cover ratio. Upcoming announced auctions appear without result fields.","failureModes":["Date range exceeds 92-day maximum — API rejects with an error","Invalid date format (not YYYY-MM-DD) causes a 400 bad request","Unknown or misspelled term value returns empty results or an error","No auctions in the specified range returns an empty list","Service unavailable due to Render.com cold start or downtime"],"whenToPreferThis":"Use this endpoint when you need a list of multiple Treasury auctions across a date window, especially to build calendars, track bid-to-cover trends, or compare upcoming vs. completed auctions. Prefer the sibling 'next auction' endpoint when you only need the single next upcoming event for a specific term. This endpoint is best for date-range queries, historical result retrieval, and multi-term survey across a period.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T05:25:40.235Z","isFirstParty":false,"canonicalSlug":"us-treasury-auction-calendar-api-3d0dd0e3"}