Is Rainbow Weather free to use?

Yes, Rainbow Weather is listed as a free public API. Visit the official documentation for current rate limits and usage policies.

Does Rainbow Weather require authentication?

Yes, Rainbow Weather requires API Key authentication. Check the documentation for setup instructions.

Rainbow Weather — Free Public API

Overview

Rainbow Weather provides real-time nowcasting (radar + satellite fusion) — key-based.

⚠️ Status (verified 2026-08): a guessed path returned HTTP 404 {"statusCode":404,"message":"Resource not found"} — the API is alive; route paths differ. Check the developer docs for valid routes.

What it provides

curl "https://api.rainbow.ai/v1/weather?api_key=YOUR_KEY"

Notes

Global nowcasting (structured 404, verified).
Route paths per developer.rainbow.ai.

FAQ

Is Rainbow Weather free? Key-based per the docs.

Why 404? Our 2026-08 guess path was wrong (verified) — check the docs.

What does it do? Radar+satellite nowcasting.

API	Auth	HTTPS	CORS
7Timer! Weather, especially for Astroweather	No auth	No	Unknown	↗
AccuWeather Weather and forecast data	API Key	No	Unknown	↗
Aemet Weather and forecast data from Spain	API Key	Yes	Unknown	↗
APIXU Weather	API Key	Yes	Unknown	↗
AQICN Air Quality Index Data for over 1000 cities	API Key	Yes	Unknown	↗

API

Auth

HTTPS

CORS

7Timer!

Weather, especially for Astroweather

No auth

Unknown

↗

AccuWeather

Weather and forecast data

API Key