{"uid":"cap_34T1hgcBId5_0Lw7vtxOW","slug":"argonautworks-us-weather-api-937473f3","name":"ArgonautWorks US Weather API","description":"A compact authoritative U.S. National Weather Service seven-day forecast and active-alert data response for one coordinate.","url":"https://argonaut-us-weather-api.vercel.app/api/v1/forecast","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","oneOf":[{"maxProperties":0},{"required":["lat","lon"]}],"properties":{"lat":{"oneOf":[{"type":"string"},{"type":"number"}],"example":38.8895},"lon":{"oneOf":[{"type":"string"},{"type":"number"}],"example":-77.0353}},"description":"Provide both coordinates, or use an empty object for the documented Washington, D.C. default.","additionalProperties":false},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"forecast":{"periods":[{"name":"Tonight","short_forecast":"Mostly Clear"}]},"location":{"latitude":38.8895,"longitude":-77.0353},"active_alerts":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0012","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.0012/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OjZoEj68g2OMQiJVRAYy-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0012","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a seven-day NWS forecast and active weather alerts for a given U.S. latitude/longitude coordinate","exampleAgentPrompt":"What's the official 7-day National Weather Service forecast and any active alerts for coordinates 38.8895 latitude, -77.0353 longitude near the National Mall in Washington DC?","exampleUseCases":[{"title":"Outdoor event weather planning","prompt":"I'm organizing an outdoor concert in Chicago at 41.8827 latitude and -87.6233 longitude — can you pull the NWS 7-day forecast and check if there are any active weather alerts for that area this week?"},{"title":"Severe weather alert monitoring","prompt":"Check the current NWS active weather alerts for Miami at 25.7617 latitude and -80.1918 longitude — I need to know if there are any warnings or watches in effect right now."},{"title":"Construction site daily briefing","prompt":"Pull the 7-day National Weather Service forecast for our job site at 40.7128 latitude, -74.0060 longitude in New York — we need to know which days look clear enough for outdoor work."}],"resultDescription":"A JSON object containing a forecast array of named time periods (e.g. Tonight, Thursday, Thursday Night) each with a short forecast description, the echoed back location coordinates, and an array of any active NWS weather alerts for that area. The forecast spans approximately seven days of periods.","failureModes":["Coordinates outside the contiguous US or US territories may return no data or an error","Invalid latitude/longitude values will result in a failed lookup","NWS upstream API outages may cause timeouts or empty responses","Coordinates over open ocean with no NWS grid coverage will fail","Malformed POST body missing required lat/lon fields will return an error"],"whenToPreferThis":"Choose this endpoint when you need official, authoritative U.S. government (NWS) weather forecast data for a specific coordinate within the United States, especially when active severe weather alerts are also needed in the same call. It is ideal for US-only use cases requiring a compact 7-day outlook without needing to chain multiple API calls. Prefer it over commercial weather APIs when official NWS data is required for compliance, emergency planning, or government-aligned workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:32:25.660Z","isFirstParty":false}