Lead Enrichment & Qualification Suite

Lead Enrichment & Qualification Suite — Qualify inbound leads with one API: verify lead emails and phones, validate company domains, standardize addresses, and score message sentiment for intent.

🎯 Validators + AI

🚀 Newcomer launch pricing — limited-time introductory rates while we earn our first reviews.

Built for sales and growth teams, RevOps, CRM developers.

Why this exists

Lead qualification — email/phone validity, company domain, address, intent — is pulled from several enrichment vendors.

What you get

One API key verifies contacts, validates domains, standardizes addresses, and scores intent — the lead-qualification layer.

Endpoints (5 total)

• POST /v1/email/verify
• POST /v1/phone/verify
• POST /v1/domain/validate
• POST /v1/address/parse
• POST /v1/intent/sentiment

Sample request

curl -X POST https://api-lead-suite.knowlez.com/v1/email/verify -H "X-API-Key: <your-key>" -H "Content-Type: application/json" -d '{}'

Pricing

• Starter — $9/mo · 5,000 ops included · $0.003/op overage
• Pro — $29/mo · 50,000 ops included · $0.002/op overage
• Scale — $99/mo · 500,000 ops included · $0.0008/op overage

Swagger / OpenAPI: api-lead-suite.knowlez.com/docs