{"uid":"cap_5R_MP1B7Wtn0kAlSFu3wK","slug":"us-volcano-hazard-alert-status-api-5ddeacee","name":"US Volcano Hazard Alert Status API","description":"Volcano hazard API: every US volcano currently at an elevated alert level — alert level (NORMAL/ADVISORY/WATCH/WARNING), aviation color code, observatory, and latest notice time — as normalized JSON. Covers Alaska, Hawaii, the Cascades, Yellowstone, and the Mariana Islands. Use for aviation routing, hazard-monitoring dashboards, and risk-alert agents. Public-domain government data, cached 5 minutes. Returns an empty list when no volcanoes are elevated.","url":"https://x402.forgemesh.io/volcano-activity","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","properties":{}},"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":{"data":[{"obs_abbr":"avo","color_code":"ORANGE","alert_level":"WATCH","volcano_name":"Great Sitkin"}],"attribution":"U.S. Geological Survey Volcano Hazards Program / HANS (public domain)"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_HlFwoRKVfuMsAe2L-8wDo","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns all US volcanoes currently at elevated alert levels (ADVISORY, WATCH, or WARNING) with their aviation color code, observatory, and latest notice time as normalized JSON.","exampleAgentPrompt":"Are any US volcanoes currently under an elevated alert — like ADVISORY, WATCH, or WARNING — and if so, what are their aviation color codes and which observatory is tracking them?","exampleUseCases":null,"resultDescription":"A JSON list of all US volcanoes currently at elevated alert levels, each with volcano name, alert level (NORMAL/ADVISORY/WATCH/WARNING), aviation color code (GREEN/YELLOW/ORANGE/RED), the responsible observatory, and the timestamp of the latest notice. Returns an empty list when no volcanoes are elevated. Data is cached and refreshed every 5 minutes from USGS public-domain sources. Covers Alaska, Hawaii, the Cascades, Yellowstone, and the Mariana Islands.","failureModes":["Empty list returned when no volcanoes are elevated — not an error, just no current hazards","Payment failure if USDC balance insufficient for the $0.005 per-call fee","Stale data up to 5 minutes old due to caching — not suitable for sub-minute monitoring","No historical data — only current snapshot is available","May not reflect very recent USGS updates within the cache window"],"whenToPreferThis":"Use this endpoint when you need a normalized, ready-to-parse JSON snapshot of current US volcano hazard status across all observatories. Ideal for aviation routing decisions, hazard-monitoring dashboards, or risk-alert agents that need alert levels and aviation color codes in one call. Prefer this over scraping USGS directly when you need structured JSON output, consistent schema, and multi-observatory coverage in a single request.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:13:01.505Z","isFirstParty":false}