{"uid":"cap_4MAi56rW70kWQEOryXcI_","slug":"market-intelligence-api-us-treasury-auctions-a0ccf320","name":"Market Intelligence API – US Treasury Auctions","description":"US Treasury auctions results and calendar: upcoming and recent auctions with high yield, bid-to-cover, indirect and dealer shares, and the change vs the previous auction of the same security. Use to track Treasury supply and demand.","url":"https://api.marketintelligenceapi.com/api/v1/rates/auctions?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"days":{"type":"integer","default":14,"maximum":60,"minimum":1,"description":"Look-back period in days"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"description":"Example JSON response returned by this endpoint"}},"additionalProperties":true}},"additionalProperties":false},"responseSchema":{"type":"json","example":{"recent":[{"previous":{"bidToCover":2.61,"highYieldPercent":4.52},"bidToCover":2.53,"auctionDate":"2026-08-12","securityTerm":"10-Year","securityType":"Note","highYieldPercent":4.683,"indirectBiddersPercent":60.98}],"upcoming":[{"auctionDate":"2026-09-29","securityTerm":"52-Week","securityType":"Bill"}]}},"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_B9jVLxj3Qs6fpKifbDzfz","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 upcoming and recent US Treasury auction data including high yield, bid-to-cover ratio, and indirect/dealer bidder shares with change vs prior auction.","exampleAgentPrompt":"Pull the latest US Treasury auction results for me — I want to see the high yield, bid-to-cover ratios, and indirect bidder shares for recent auctions, and flag any upcoming auctions on the calendar.","exampleUseCases":[{"title":"Macro research on Treasury demand trends","prompt":"Show me the most recent Treasury note and bill auction results — I need the high yields, bid-to-cover ratios, and how indirect bidder participation has changed compared to the previous auctions of the same security."},{"title":"Pre-trade bond market context check","prompt":"Before I position in Treasuries, can you check what the latest auction data looks like? I want to see if bid-to-cover ratios are improving or deteriorating and what indirect bidders are doing."},{"title":"Upcoming auction calendar monitoring","prompt":"What Treasury auctions are coming up? Give me the dates, security types, and terms so I can plan around any potential market-moving supply events."}],"resultDescription":"A JSON object with two arrays: 'recent' (completed auctions with auction date, security term, security type, high yield percent, bid-to-cover ratio, indirect bidders percent, and delta vs prior auction of the same security) and 'upcoming' (scheduled future auctions with date, term, and type).","failureModes":["No data available for a requested period — returns empty arrays","Rate limit exceeded — HTTP 429 if call volume exceeds plan limits","Payment failure — HTTP 402 if x402 payment is not processed correctly","Stale data — auction calendar may lag official Treasury announcements by a short delay"],"whenToPreferThis":"Choose this endpoint when you need structured, parsed US Treasury auction metrics (yield, bid-to-cover, bidder composition) in a single call without scraping TreasuryDirect or manually parsing auction announcements. It is especially useful for agents doing macro bond market analysis, monitoring demand trends across auction cycles, or building pre-trade context around Treasury supply events.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:41:08.045Z","isFirstParty":false,"canonicalSlug":"market-intelligence-api-us-treasury-auctions-a0ccf320"}