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WeatherStack

Humidity & Air & Pressure API

Open documentation ↗
API keyHTTPSNo CORSEnvironment

Verified 4 days ago: 100% uptime

API key

Required

HTTPS

Supported

Browser calls

No, needs a proxy

Status

Live · 100/100

What our checks found

Health score
100/100
Reliability
100%
Average latency
2473ms

Last checked 2026-09-18. Measured independently, not self-reported by the provider.

How to call it

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

# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://weatherstack.com/ENDPOINT" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"

This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.

Where this listing comes from

Aggregated from one public source (public-api-lists), then normalised and checked by us. If something here is wrong, tell us and we will correct it.

Other Environment APIs

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DC Hub

Environment

Live data on data-center facilities, power markets, grid telemetry, and fiber infrastructure

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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Luchtmeetnet

Environment

Predicted and actual air quality components for The Netherlands (RIVM)

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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Open-Meteo

Environment

Global weather forecast API for non-commercial use

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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Open-Meteo Marine

Environment

Ocean wave height, swell, sea temperature and marine weather data

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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UK Carbon Intensity

Environment

The Official Carbon Intensity API for Great Britain developed by National Grid

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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WattFigure

Environment

US electricity rates by state, with appliance and EV charging running costs

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

WeatherStack — common questions

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

Is WeatherStack free to use?

WeatherStack is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does WeatherStack need an API key?

Yes. WeatherStack authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.

Can I call WeatherStack from browser JavaScript?

Not directly. WeatherStack did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.

Is WeatherStack still working?

Yes, as of 2026-09-18. Our automated check reached WeatherStack and recorded a 100% reliability score with a median response time of 2473 ms. We re-check on a schedule, and this page updates with the result.

Is WeatherStack available over HTTPS?

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