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NOAA CO-OPS

US coastal tides, water levels, currents and meteorological observations

Open documentation ↗
No keyHTTPSCORS?Weather

API key

Not required

HTTPS

Supported

Browser calls

Unconfirmed

Status

Not yet checked

How to call it

A starting template for NOAA CO-OPS. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# No authentication required.
curl -s "https://api.tidesandcurrents.noaa.gov/ENDPOINT" \
  -H "Accept: application/json"

Where this listing comes from

Aggregated from one public source (public-apis), then normalised and checked by us.

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NOAA CO-OPS — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is NOAA CO-OPS free to use?

NOAA CO-OPS is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.

Does NOAA CO-OPS need an API key?

No. We called NOAA CO-OPS on our last run with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.

Can I call NOAA CO-OPS from browser JavaScript?

We could not confirm CORS support for NOAA CO-OPS. Test it from a browser before relying on it client-side; if the request succeeds in curl but fails in the console, CORS is the reason.

Is NOAA CO-OPS available over HTTPS?

Yes. NOAA CO-OPS serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.