Enter a phone number and we'll tell you if it's real, what carrier it's on, and whether it's a VoIP or burner risk.
The Phone Reputation Scorer API accepts any phone number in international format and returns a structured JSON response with carrier data, line type, VoIP status, and a reputation score from 0 to 100. A score of 100 means a clean, registered mobile or landline. Scores below 40 indicate VoIP, prepaid, or otherwise high-risk numbers that should be blocked or flagged.
Common use cases include free trial abuse prevention, SMS verification validation, fraud detection at signup, and lead quality scoring. If your product offers a free tier, allows phone-based verification, or needs to filter out fake accounts, this API catches burner and VoIP numbers at the point of entry — before they cause problems.
The API is available on RapidAPI. A free plan is included so you can test it without a credit card. Pro access unlocks higher rate limits for production workloads.
Catch VoIP and burner numbers at signup. Protect your free trial, prevent fraud, and improve lead quality. Free plan available.