# NOAA CO-OPS Real-Time Water Level Data (via Suverse Proxy)

> NOAA CO-OPS Real-Time Water Level Data (via Suverse Proxy) is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns observed tide-gauge water level readings for today at a specified NOAA CO-OPS station, with 6-minute interval samples including sigma and quality flags.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-ocean-water-level
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/noaa-co-ops-real-time-water-level-data-via-suverse-proxy-d81fa043
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JO9q0Yfzs-A3fklgxfjrB

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-real-time-water-level-data-via-suverse-proxy-d81fa043 -d '<json body>'
```

Example prompt: Can you pull today's observed water level readings from the NOAA tide gauge station 8518750 (Battery, NY) — I need the 6-minute samples with quality flags so I can see if there's any unusual surge?

## When to prefer this

Choose this endpoint when you need real-time or today's observed coastal water level data from NOAA tide gauges without managing your own NOAA API integration. It is ideal for agents that need keyless, pay-per-call access to NOAA CO-OPS data — particularly for coastal flood monitoring, storm surge detection, maritime safety checks, or scientific data collection. Prefer this over direct NOAA API calls when operating in an agentic/automated pipeline that uses x402 micropayment infrastructure.

## Known failure modes

- Invalid or non-existent station ID returns an error with no data
- Station offline or under maintenance may return empty or partial data
- NOAA CO-OPS upstream API outage causes proxy to return a 502 or error response
- Requesting data for a future date or unsupported date range may return empty results
- Malformed request body (missing required fields) returns a 400-level validation error

## How this service works

Observed tide-gauge water levels for today at a NOAA CO-OPS station, 6-minute samples with sigma and quality flags. Keyless NOAA Tides and Currents. For agents monitoring real-time coastal water levels.

## Output

Returns a time series of observed water level readings for today at the specified NOAA CO-OPS station, with one measurement every 6 minutes. Each sample includes the water level value, a sigma (standard deviation) indicating measurement variability, and a quality flag indicating data reliability. Timestamps are in local or UTC time depending on request parameters.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/noaa-co-ops-real-time-water-level-data-via-suverse-proxy-d81fa043/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)