{"uid":"cap_TSJDRmZPgSUfNrGgqd7Ro","slug":"aviation-ground-stop-chain-nas-region-29783cca","name":"Aviation Ground-Stop Chain (NAS Region)","description":"[3-LEG] Aviation ground-stop chain, one airport (?entity=ewr): leading aviation weather - METAR ceiling, visibility, convection and gusts -> current FAA NAS ground stops and delay programs -> realized delay (confirmation gate). A chain, not one reading: confidence = how many legs are lit, in order. Sources: FAA NAS Status, NWS METAR. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.25 per call.","url":"https://api.truthbear.co/gauge/nas-region","method":"GET","headers":{},"bodySchema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["entity"],"properties":{"entity":{"type":"string","examples":["ewr","lga","jfk","sfo","ord","bos"],"description":"required - monitored object id, paired with signal_id; free list at GET /gauge/catalog?signal_id=<signal_id> -> signals[0].entities[]","x-accepted-values":{"all":"https://api.truthbear.co/schemas/gauge-nas-region.input.json","shown":6,"total":22}}},"additionalProperties":false}}},"output":{"type":"object","required":["type"],"properties":{"type":{"const":"json"},"example":{}}}}},"responseSchema":{"type":"json","example":{"legs":{"ground_ops":{"band":"normal","source_ref":"https://nasstatus.faa.gov/","record_hash":"sha256:081b471e6ccdf63d45e4daf90698bba7215ed9571073e931c9b2e62b1fe84c5e"},"aviation_wx":{"band":"vfr_clear","source_ref":"https://aviationweather.gov/","record_hash":"sha256:035a23f3ca29509783992474ebb3290ac55e423a4e1ff68b621526c533170833"},"impact_cascade":{"band":"none","source_ref":"https://nasstatus.faa.gov/","record_hash":"sha256:bb7dcab20272e4d1a8b01dfbabbcbb5318ffe14ef484ec9e1eead2d5c07e7395"}},"name":"Newark Liberty Intl","grade":"screening-level, not decision-grade","scope":{"full":"https://api.truthbear.co/scope/v1","verifiability":"unknown","monitoring_not_forecast":true,"intelligence_not_command":true},"entity":"ewr","nature":"This API supplies data organisation and trend description only. It is not a recommendation to act; the decision is yours. Purely descriptive - no judgement, no prediction. Official source plus record_hash; verify with the free /gauge/verify.","provenance":{"freshness":"fresh","age_hours_now":0,"freshness_basis":"cadence=default; fresh<=24h; recent<=192h; dead_source>1440h; age_basis=request-time(now minus observed_at)"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","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":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_8FC0U1dLQO1DM2u8ccMgN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a 3-leg sequential chain of aviation weather conditions, FAA NAS ground stops, and realized gate delays for a given US airport, with confidence scored by how many legs are active.","exampleAgentPrompt":"What's the current ground-stop and delay situation at EWR — pull the full 3-leg chain including weather conditions, any active FAA NAS programs, and realized gate delays.","exampleUseCases":[{"title":"Pre-departure delay check for Newark","prompt":"Before I head to Newark airport, can you check if there's a ground stop or any FAA delay programs active at EWR right now, and tell me what the ceiling and visibility look like?"},{"title":"Operations monitoring for O'Hare","prompt":"Pull the full aviation ground-stop chain for ORD — I need to know the current METAR weather conditions, any active FAA NAS programs, and whether gate delays are being realized, plus the confidence score."},{"title":"Real-time delay confirmation at SFO","prompt":"Is there a ground stop at SFO right now? Give me the 3-leg chain: weather leading indicators, FAA NAS status, and whether any delays are actually showing up at the gates."}],"resultDescription":"A JSON object representing a 3-leg sequential chain: Leg 1 contains METAR-derived aviation weather data (ceiling, visibility, convection, gusts) for the specified airport; Leg 2 contains current FAA NAS ground stop and delay program status; Leg 3 contains realized gate delay confirmation. A confidence score (0–3) reflects how many legs returned live data. Returns HTTP 422 with no_charge if no data is available, meaning the call is not billed.","failureModes":["422 no_charge returned when no live data is available for any leg — call is not billed","Invalid or unsupported airport entity code returns an error","Partial chain: one or more legs may be unlit if FAA or NWS sources are unavailable, lowering confidence score","Network timeout or upstream source outage from FAA NAS or NWS METAR feeds"],"whenToPreferThis":"Choose this endpoint when you need a single call that aggregates aviation weather leading indicators, FAA NAS operational status, and realized gate delays for a specific US airport into a confidence-scored sequential chain. Prefer this over raw FAA or NWS feeds when you want pre-correlated, multi-source aviation situational awareness without building your own aggregation logic. Especially useful when you need to understand not just if a delay program exists but whether weather conditions support and gate delays confirm it.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:49:10.724Z","isFirstParty":false}