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Cloudmersive Validate API vs Numverify API

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

The verdict

  • Choose Cloudmersive Validate API if you want to call it from browser JavaScript.
  • Choose Numverify API if its data fits your use case better; on access and reliability it's level with Cloudmersive Validate API.

Side by side

Cloudmersive Validate APINumverify API
What it doesValidate international phone numbers. A free phone API by Cloudmersive.Numverify API is a powerful JSON API providing international and national phone number validation, carrier, location, and line type lookup for developers.
ProviderCloudmersiveNumverify API
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)YesUnknown
Status todayOnline · 847 msOnline · 894 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Cloudmersive Validate docs ↗Numverify docs ↗

About each API

Cloudmersive Validate logoCloudmersive Validate API

Validate international phone numbers. A free phone API by Cloudmersive.

Strengths

  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

Numverify logoNumverify API

Numverify API is a powerful JSON API providing international and national phone number validation, carrier, location, and line type lookup for developers.

Numverify API is a powerful JSON API providing international and national phone number validation, carrier, location, and line type lookup for developers.

Strengths

  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (neither does, so compare their free tiers).
  • 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.

Cloudmersive Validate vs Numverify FAQ

Do Cloudmersive Validate API and Numverify API need an API key?

Both require authentication (apiKey and apiKey).

Which can I call from the browser?

Cloudmersive Validate API supports CORS, so front-end JavaScript can call it directly. Call the other from a server.

More comparisons

Cloudmersive Validate API alternatives · Numverify API alternatives · best Phone APIs