Phone Number Validation API

Phone Number Validation API — Global phone validation: format + country + line-type + carrier + risk score.

What you get

• POST /v1/phone/verify — primary endpoint.
• X-API-Key authentication, per-key rate limits, audit log.
• OpenRouter-backed where AI is involved — no model keys to manage on your side.
• Interactive Swagger docs at api-phone-verify.knowlez.com/docs.

Plans

• Starter — $9/mo · 1,500 checks included · $0.005/check overage.
• Pro — $29/mo · 20,000 checks included · $0.003/check overage.