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221 logovsBand Atlas logo

221 API vs Band Atlas API

Two free Open Data APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

  • Choose 221 API if you want faster responses.
  • Choose Band Atlas API if its data fits your use case better; on access and reliability it's level with 221 API.

Side by side

221 APIBand Atlas API
What it doesSenegal reference data: public holidays, mobile operators, banks, communes, legal forms.Cellular IoT bands, 2G/3G sunsets and device compatibility for 46 countries.
Provider221Hyper Nexus
API keyNot neededNot needed
HTTPSYesYes
CORS (browser calls)YesYes
Status todayOnline · 527 msOnline · 1860 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
221 docs ↗Band Atlas docs ↗

About each API

221 logo221 API

Senegal reference data: public holidays, mobile operators, banks, communes, legal forms.

L'API 221 et ses SDK en un coup d'œil. Trouvez une route, obtenez une clé, faites un premier appel, puis choisissez un SDK.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

Band Atlas logoBand Atlas API

Cellular IoT bands, 2G/3G sunsets and device compatibility for 46 countries.

Band Atlas data is open as a standard JSON API for developers, procurement systems and AI assistants: every country’s networks and bands (with confidence…

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

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.

221 vs Band Atlas FAQ

Do 221 API and Band Atlas API need an API key?

Neither needs an API key; you can call both straight away.

More comparisons

221 API alternatives · Band Atlas API alternatives · best Open Data APIs