{"uid":"cap_db9moSPStLRfFrth2uRPX","slug":"weather-data-pipeline-same-day-observed-high-metar-82cb43eb","name":"Weather Data Pipeline – Same-Day Observed High (METAR)","description":"Today's observed high so far from the airport METAR station (public-domain source, spike-filtered), plus a past-peak signal. Observed facts and inferred judgement are returned as separate fields, and the inference ships with its own measured accuracy (0.984 over 61 out-of-sample days) and a named failure mode, so you can weight it rather than trust it blindly.","url":"https://weatherbot-x402.fly.dev/nowcast/:var1?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"},"pathParams":{"type":"object","required":["var1"],"properties":{"var1":{"type":"string","description":"City key -- see GET /cities for the full list (e.g. nyc, london, tokyo)."}}},"queryParams":{"type":"object","properties":{}}},"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":"down","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_cHtWyjvDeg_mPMdIrOP59","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 the same-day observed temperature high so far for a given city, sourced from airport METAR stations, with single-spike filtering and past-peak detection.","exampleAgentPrompt":"What's the observed temperature high so far today for NYC — pull it from the airport METAR station with spike filtering?","exampleUseCases":[{"title":"Real-time heat alert monitoring","prompt":"Check the current observed high temperature for Phoenix today — I want to know if it's already peaked or still climbing, using the airport weather station data."},{"title":"Travel packing decision support","prompt":"What's today's temperature high so far in London based on METAR airport readings? I need to know if it's a warm or cool day before I advise on what to wear."},{"title":"Daily weather dashboard update","prompt":"Pull the same-day observed high temperatures for nyc, chicago, and tokyo from the airport weather stations — I need the filtered readings with past-peak flags for my morning briefing."}],"resultDescription":"Returns the same-day observed temperature high recorded so far at the city's airport METAR station, with single-spike filtering applied to remove erroneous readings, and a past-peak flag indicating whether temperatures are still rising or have already declined from the day's maximum.","failureModes":["Invalid city key returns an error or empty response — use GET /cities to validate available keys","METAR station data unavailable for the requested city results in a null or error response","Temporary upstream METAR feed outage may return stale or missing data","Malformed path parameter (non-string or unsupported city code) returns a 4xx error"],"whenToPreferThis":"Choose this endpoint when you need a real-time, cleaned, same-day observed temperature high derived from airport METAR stations rather than forecast data or model estimates. It is best suited for applications that need actual observed conditions with noise filtering (single-spike removal) and awareness of whether the day's peak has already passed. Prefer this over forecast APIs when historical-to-now observed accuracy matters more than future projections.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-04T09:25:30.068Z","isFirstParty":false,"canonicalSlug":"weather-data-pipeline-same-day-observed-high-metar-82cb43eb"}