Phone Verif

Phone Verif is an API service that verifies phone numbers by having users send a WhatsApp message instead of receiving and entering SMS codes. The user scans a QR code or taps a link, sends one message from their phone, and the server receives cryptographic proof of their number—eliminating SMS costs, typos, and code interception risks.

The service targets developers building authentication systems who want to reduce fraud and carrier costs. It offers a two-endpoint REST API with no SDK requirement, live demo, and pricing based only on successful verifications. The maker says it was built with Lovable.