Phone — entry 002 of 7
Numverify
Numverify (an APILayer product) validates phone numbers against international numbering-plan rules and returns carrier, line type, and location data for 232 countries. Its documented base endpoint, apilayer.net/api/validate, answered a live GET with a 200 JSON body carrying access-control-allow-origin: * — resolving the stored "unknown" cors to "yes" — and rejected the request with an invalid_access_key error, confirming auth "API Key"; the same endpoint also answers on https://, confirming the stored https true even though the docs quote the base URL as plain http://. Its pricing page offers a free-forever plan (100 requests/month) alongside paid Basic/Professional/Enterprise tiers — freemium.
GreatAPIs Score
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<a href="https://greatapis.com/api/numverify/"><img src="https://greatapis.com/badge/numverify.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Get a key at the provider
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
100 API Requests/month on Free plan, 5,000/month on Basic, 50,000/month on Professional, 250,000/month on Enterprise, unlimited on Custom plan