{"uid":"cap_GRGYNNPdMp_3ilWfbp9BL","slug":"x402-factory-extreme-heat-alerts-78bb7d2e","name":"x402-factory Extreme Heat Alerts","description":"Active and forecast extreme heat risk (NWS + model) — Active NWS alerts filtered to extreme heat hazards for any US point, with model-based risk context. Same shape as /v1/alerts/severe with the hazard class fixed to extreme heat.","url":"https://x402-factory.com/v1/alerts/heat","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"lat":{"type":"number","maximum":90,"minimum":-90},"lon":{"type":"number","maximum":180,"minimum":-180},"state":{"type":"string","pattern":"^[A-Za-z]{2}$","maxLength":2,"minLength":2}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["data","meta"],"properties":{"data":{"type":"object","required":["active","model_risk"],"properties":{"active":{"type":"array","items":{"type":"object","required":["event","severity","headline","onset","expires","source"],"properties":{"event":{"type":"string"},"onset":{"type":"string"},"source":{"type":"string","const":"NWS"},"expires":{"type":"string"},"headline":{"type":"string"},"severity":{"type":"string"}},"additionalProperties":false}},"model_risk":{"type":"array","items":{"type":"object","required":["hazard","window_start","window_end","probability"],"properties":{"hazard":{"type":"string"},"window_end":{"type":"string"},"probability":{"type":"number","maximum":1,"minimum":0},"window_start":{"type":"string"}},"additionalProperties":false}}},"additionalProperties":false},"meta":{"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":"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_GUJplj338B-IA5xoSh1DU","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 active NWS extreme heat alerts and model-based heat risk forecasts for any US latitude/longitude point or state.","exampleAgentPrompt":"Are there any active extreme heat warnings or advisories right now for Phoenix, Arizona (lat 33.45, lon -112.07), and what does the model say the heat risk looks like over the next few days?","exampleUseCases":[{"title":"Outdoor event heat safety check","prompt":"We have an outdoor festival planned in Las Vegas next weekend — can you check if there are any active NWS extreme heat alerts for lat 36.17, lon -115.14 and what the model-based heat risk probability looks like for that window?"},{"title":"Field worker heat risk monitoring","prompt":"I need to monitor heat hazard conditions for our construction crews working in Phoenix, AZ — pull any active extreme heat warnings and the forecasted heat risk probability for coordinates 33.45, -112.07."},{"title":"Statewide heat emergency situational awareness","prompt":"Give me a summary of all active extreme heat alerts across Texas right now — use state code TX — and include any model-based heat risk context so I can understand how widespread the hazard is."}],"resultDescription":"Returns two arrays: 'active' containing current NWS extreme heat alerts (event name, severity, headline, onset/expiry timestamps, source), and 'model_risk' containing forward-looking heat hazard entries with probability scores (0–1) and time windows. Also includes a meta object with request context.","failureModes":["Missing or out-of-range lat/lon returns a validation error","No active alerts returns an empty 'active' array, not an error","Invalid state code (not 2 letters) returns a 400 error","Service may return stale data if NWS feed is delayed","Payment of 0.01 USDC required per call; unpaid requests return 402"],"whenToPreferThis":"Use this endpoint when you specifically need extreme heat hazard information for a US location — it pre-filters NWS alerts to only heat-related hazards and augments them with model-based risk probabilities, saving the extra step of filtering a general alerts feed. Prefer it over the general /v1/alerts/severe endpoint when heat is your only concern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:50:50.325Z","isFirstParty":false}