# NOAA CO-OPS Station Data

> NOAA CO-OPS Station Data is a paid API for AI agents from fittings.sh, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-12).

Returns observed water levels, tide predictions, or current speed/direction for a NOAA CO-OPS station over a date window of up to 7 days.

## Facts

- Endpoint: GET https://fittings.sh/v1/noaa/coops-station-data?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/noaa-co-ops-station-data-9879b46f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eKrXODG__QlmkXAtVW18Q

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability noaa-co-ops-station-data-9879b46f
```

Example prompt: Pull the tide predictions for NOAA CO-OPS station 8518750 from July 1 to July 7 using MLLW datum in English units.

## When to prefer this

Use this endpoint when you need authoritative NOAA tidal and current data for a specific US coastal or estuarine station, especially for maritime navigation, flood monitoring, or scientific analysis. It covers real observed water levels, official tide predictions, and current data — prefer it over third-party tide apps when you need raw station-level data with datum control and a specific date window up to 7 days.

## Known failure modes

- Invalid station ID returns an error or empty dataset
- Date range exceeding 7 days is rejected or truncated
- Unavailable product type for a given station (e.g. currents not available at water-level-only stations)
- Invalid datum for a station (e.g. NAVD not available at some stations) returns an error
- Future dates beyond available predictions window may return empty results
- Malformed date format returns a validation error

## How this service works

Observed water levels, tide predictions or current speed and direction for a NOAA CO-OPS station over a date window of up to 7 days.

## Output

Returns time-series data from the NOAA CO-OPS API including timestamps paired with observed or predicted values (water level in feet/meters, or current speed and direction), along with the datum reference and units used. Data covers the requested date window up to 7 days.

## Request schema (JSON Schema)

```json
{
 "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": [
      "station",
      "beginDate"
     ],
     "properties": {
      "datum": {
       "type": "string",
       "description": "Vertical datum for water_level and predictions, one of MLLW, MLW, MSL, MTL, MHW, MHHW, NAVD, STND; default MLLW"
      },
      "units": {
       "type": "string",
       "description": "english or metric; default english"
      },
      "endDate": {
       "type": "string",
       "description": "ISO date YYYY-MM-DD; defaults to beginDate, at most 7 days"
      },
      "product": {
       "type": "string",
       "description": "One of water_level, predictions, currents; default water_level"
      },
      "station": {
       "type": "string",
       "description": "CO-OPS station id, e.g. 8518750 or cb0102"
      },
      "beginDate": {
       "type": "string",
       "description": "ISO date YYYY-MM-DD"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/noaa-co-ops-station-data-9879b46f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fittings.sh](https://www.zero.xyz/host/fittings.sh/llms.txt)