{"uid":"cap_92eTG_bM1Kiijk1dUtWPz","slug":"sitecheck-tides-api-c4d02c48","name":"SiteCheck Tides API","description":"Tide predictions (high and low water, metres above MLLW, UTC times) for 1 to 7 days at the NOAA station nearest a point, or at a station id, from NOAA CO-OPS (US public domain). Give lat and lon, or a place name. Coverage is US coasts, Great Lakes and territories only; a point more than 100 km from a station is a 404, not charged. search=name lists stations.","url":"https://api.sitecheck-api.workers.dev/api/tides?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"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"lat":{"type":"string","description":"Latitude (with lon)"},"lon":{"type":"string","description":"Longitude (with lat)"},"days":{"type":"string","description":"Days of predictions, 1 to 7, default 2"},"place":{"type":"string","description":"Place name, geocoded (instead of lat and lon)"},"search":{"type":"string","description":"Name fragment to list stations instead of predictions, at least 3 characters"},"station":{"type":"string","description":"NOAA station id, 7 digits, e.g. 8518750 (one of station, place, lat and lon, or search)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"days":2,"count":11,"datum":"MLLW (mean lower low water), metres, times in UTC","point":{"from":"station id"},"source":"NOAA CO-OPS Data API (predictions, public domain)","station":{"id":"8518750","lat":40.7006,"lon":-74.0142,"name":"NEW YORK (The Battery)","state":"NY"},"coverage":"US coasts and territories only","checkedAt":"2026-10-15T14:00:30.759Z","predictions":[{"time":"2026-10-15T03:45Z","type":"high","heightM":1.277},{"time":"2026-10-15T09:35Z","type":"low","heightM":0.321},{"time":"2026-10-15T15:58Z","type":"high","heightM":1.5}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_J-WaKDvLiaORbZf6jOjzk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns NOAA tide predictions (high/low water times and heights) for a US coastal station by location or station ID","exampleAgentPrompt":"What are the tide predictions for the next 3 days near The Battery in New York — give me all the high and low times and heights?","exampleUseCases":[{"title":"Coastal boating trip planning","prompt":"I'm heading out on my boat from Charleston, SC this Saturday and Sunday — can you pull the tide predictions for those 2 days so I know when the inlet is navigable?"},{"title":"Beach visit timing","prompt":"We're going to Ocean City, MD tomorrow and want to hit the beach at low tide — what time is low tide there, and can you give me the full tide schedule for the day?"},{"title":"Finding nearby NOAA tide stations","prompt":"I need to know which NOAA tide stations are near San Francisco Bay — can you search for stations with 'san' in the name and list them for me?"}],"resultDescription":"Returns a JSON object with tide predictions (high/low) for up to 7 days: each prediction includes a UTC timestamp, type (high or low), and height in meters relative to MLLW (mean lower low water). Also includes station metadata (ID, name, state, lat/lon), datum description, total prediction count, and data source attribution. Coverage is US coasts and territories only.","failureModes":["No station found for given place name or coordinates — returns empty or error","Station ID not recognized — invalid 7-digit NOAA ID returns error","Search fragment fewer than 3 characters — rejected by validation","Location outside US coasts/territories — not covered by NOAA CO-OPS","Days parameter out of range (must be 1–7) — may return error or default","No input provided (station, place, lat/lon, or search required) — returns validation error"],"whenToPreferThis":"Use this endpoint when you need authoritative NOAA tide predictions for any US coastal or territorial location. It supports flexible lookup by station ID, place name (geocoded), lat/lon coordinates, or station name search. Prefer this over generic weather APIs when you specifically need tidal high/low cycle times and heights in meters referenced to MLLW datum, especially for boating, fishing, beach planning, or marine operations.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:35:27.751Z","isFirstParty":false,"canonicalSlug":"sitecheck-tides-api-c4d02c48"}