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Welcome to GTMAPIs

GTMAPIs is a production-ready email validation SaaS platform designed specifically for B2B outbound teams sending 50k-1M+ emails per month.

What Makes Us Different

Our smart credit system only charges for high-value personal emails:
  • Valid personal emails → 1 credit (high B2B value)
  • 🆓 Role-based emails (info@, support@) → FREE
  • 🆓 Catch-all domains → FREE
  • 🆓 Invalid emails → FREE

Key Features

4-Layer Validation

Syntax, DNS, SMTP, and catch-all detection for maximum accuracy

B2B Quality Scoring

Automatically categorize emails by outbound value

High Performance

Sub-100ms for cached lookups, 70%+ cache hit rate

CSV Upload

Process up to 10,000 emails per upload via web dashboard

Quick Start

Get started in 3 simple steps:
1

Create an Account

2

Get Your API Key

Generate a test or live API key from your dashboard
3

Make Your First Request

Send a POST request to validate emails

Production Ready

Need Help?