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Marine Conditions – Real-Time Water Level vs. Tide Prediction
x402
Marine Conditions – Real-Time Water Level vs. Tide Prediction is a paid API for AI agents from marine-conditions.x402tookit.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-29).
Returns the latest observed water level at a NOAA CO-OPS station compared to its tide prediction, expressing the difference (surge or blow-out) in feet.
Price / call$0.03
Success—
StatusUnknown
How this service works
Latest observed water level at a NOAA station against its tide prediction: the difference shows surge or blow-out in feet.
Output
Returns a JSON object with the observed water level in feet, the predicted water level in feet, the anomaly (observed minus predicted) in feet indicating surge (positive) or blow-out (negative), the UTC timestamp of the observation, datum used, data age in minutes, quality flags, a plain-language verdict/summary, and flags for whether the data is preliminary or degraded.
Example use cases
Storm surge monitoring during hurricane
“Check NOAA station 8638610 right now and tell me how many feet above the predicted tide the water level is — I need to know if there's a storm surge happening.”
Low-water blow-out check for boaters
“I'm heading out on the water near station 8443970 in Boston — is the current water level significantly below the tide prediction that might make it too shallow?”
Coastal flood alert for property owner
“Can you pull the latest observed vs predicted water level at NOAA station 8570283 and tell me if there's any anomaly I should be worried about for flooding?”
Technical details
Endpoint
GEThttps://marine-conditions.x402tookit.com/water-level-now?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a real-time snapshot of actual vs. predicted water level at a specific NOAA CO-OPS station — particularly for surge detection, coastal flood monitoring, or validating whether conditions match tidal forecasts. Prefer this over tide prediction endpoints when you need observed (not forecast) data and want the anomaly already computed for you.
Side effects
- Invalid or nonexistent station ID returns an error or null fields
- Station has no recent observations — ageMinutes may be large or data may be null
- Data marked as preliminary or degraded — degraded flag set to true
- NOAA CO-OPS upstream outage causing stale or missing data
- Missing required station query parameter returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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