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Cloudmersive Validate logovsNumlookup logo

Cloudmersive Validate API vs Numlookup 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 Numlookup API if you want faster responses.

Side by side

Cloudmersive Validate APINumlookup API
What it doesValidate international phone numbers. A free phone API by Cloudmersive.Phone number validation and carrier lookup API with global coverage.
ProviderCloudmersivenumlookupapi.com
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)YesUnknown
Status todayOnline · 847 msOnline · 495 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Cloudmersive Validate docs ↗Numlookup 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 →

Numlookup logoNumlookup API

Phone number validation and carrier lookup API with global coverage.

Number lookup API for 230+ countries: validate phone numbers, get the carrier, line type and VoIP flag, and format them to E.164. 100 free requests a month.

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 Numlookup FAQ

Do Cloudmersive Validate API and Numlookup 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 · Numlookup API alternatives · best Phone APIs