freeapis

Numverify

Phone number validation

Authentication
API Key
HTTPS
Yes
CORS
Unknown
Category
Phone

Overview

Numverify (APILayer) provides phone validation — key-based (an invalid key returns 200 with a JSON error, verified).

Quick Start

Validate (replace YOUR_KEY):

curl "https://apilayer.net/api/validate?access_key=YOUR_KEY&number=14158586273"
{ "success": false, "error": { "code": 101, "type": "invalid_access_key", "info": "You have not supplied a valid API Access Key." } }

Authentication

  • Register at numverify.com → API key.
  • Send it as the access_key query parameter.

Rate Limits & Notes

  • Free tier with limits (check the docs); paid plans scale.
  • Phone validation.

FAQ

Is Numverify free? Free tier with limits; more is paid.

Why 200 + error? Invalid keys return 200 with a JSON error body (verified) — use a real key.

What’s the auth style? access_key query parameter.

More in Phone

APIAuthHTTPSCORS
Cloudmersive Validate

Validate international phone numbers

API KeyYesYes
Numlookup

Phone number validation and carrier lookup API with global coverage

API KeyYesUnknown
Phone Specification

Rest Api for Phone specifications

No authYesYes
Phone Validation

Validate phone numbers globally

API KeyYesYes
Veriphone

Phone number validation & carrier lookup

API KeyYesYes