NASA POWER API
Global solar and weather data for energy and agriculture.
POWER Documentation Site
Strengths
- No API key needed
- Fast: 228 ms response
- Callable from the browser (CORS)
- HTTPS
vsNASA POWER API vs Open-Meteo API
Two free Weather APIs compared on access, reliability and developer ratings, using data from our daily health checks.
The verdict
- Choose NASA POWER API if you want faster responses.
- Choose Open-Meteo API if its data fits your use case better; on access and reliability it's level with NASA POWER API.
Side by side
| NASA POWER API | Open-Meteo API | |
|---|---|---|
| What it does | Global solar and weather data for energy and agriculture. | Global weather forecast API for non-commercial use. |
| Provider | NASA POWER | Open-Meteo.com |
| API key | Not needed | Not needed |
| HTTPS | Yes | Yes |
| CORS (browser calls) | Yes | Yes |
| Status today | Online · 228 ms | Online · 522 ms |
| Uptime (30 days) | Up | Up |
| Developer rating | Not rated yet | Not rated yet |
| Price | Free / free tier | Free / free tier |
About each API
Open-Meteo API
Global weather forecast API for non-commercial use.
Open-Source ☀️ Weather API with free access for non-commercial use. No API Key required ✅. Accurate weather forecasts for any location. Open-Meteo provides high-resolution open data ranging from 1 to 11 kilometres from national weather services. With a user-friendly JSON API, integrating weather da…
Strengths
- No API key needed
- Callable from the browser (CORS)
- HTTPS
How to choose between them
- Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
- Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
- Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
- Still unsure? Both are free to try: send one request to each and compare the data you get back.
NASA POWER vs Open-Meteo FAQ
Do NASA POWER API and Open-Meteo API need an API key?
Neither needs an API key; you can call both straight away.
More comparisons
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- NASA POWER vs Pirate Weather
- NASA POWER vs WeatherTotals
- Open-Meteo vs Open-Meteo Ensemble
- Open-Meteo vs Pirate Weather
- Open-Meteo vs WeatherTotals
NASA POWER API alternatives · Open-Meteo API alternatives · best Weather APIs