freeapis

Cloudmersive Validate

Validate international phone numbers

Authentication
API Key
HTTPS
Yes
CORS
Yes
Category
Phone

Overview

Cloudmersive Validate provides phone validation — key-based.

⚠️ Status (verified 2026-08): a guessed path returned HTTP 404 (ASP.NET HTML) — the route paths differ. Check the docs for valid routes.

What it provides

curl -X POST "https://api.cloudmersive.com/validate/phone/number" \
  -H "Apikey: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"PhoneNumber":"+14158586273"}'

Notes

  • International phone validation.
  • Route paths per the docs.

FAQ

Is Cloudmersive Validate free? Key-based with a free tier per the docs.

Why 404? Our 2026-08 guess path was wrong (verified) — check the docs.

What does it return? Phone data.

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