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Numlookup API vs Phone Validation API

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

The verdict

  • Choose Numlookup API if you want faster responses.
  • Choose Phone Validation API if you want to call it from browser JavaScript.

Side by side

Numlookup APIPhone Validation API
What it doesPhone number validation and carrier lookup API with global coverage.Validate any phone number in real time and get its carrier, line type, and location.
Providernumlookupapi.comAbstract
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)UnknownYes
Status todayOnline · 495 msOnline · 2411 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Numlookup docs ↗Phone Validation docs ↗

About each API

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 →

Phone Validation logoPhone Validation API

Validate any phone number in real time and get its carrier, line type, and location.

Validate any phone number in real time and get its carrier, line type, and location. 100 free requests at signup, no credit card required. Start for free.

Strengths

  • 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 (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.

Numlookup vs Phone Validation FAQ

Do Numlookup API and Phone Validation API need an API key?

Both require authentication (apiKey and apiKey).

Which can I call from the browser?

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

More comparisons

Numlookup API alternatives · Phone Validation API alternatives · best Phone APIs