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Documentation

Email checker and email verification API documentation. Quickstart guide, API reference, SDKs for Python, Node.js, Go.

Welcome to the BillionVerify API documentation! Our powerful email verification service helps you maintain clean email lists and improve deliverability.

Getting Started

Key Features

  • Real-time Verification - Live email validation through a single API call
  • Bulk Processing - Verify thousands of emails efficiently
  • Advanced Detection - Identify disposable, role-based, and catch-all emails
  • Unknown Results Are Free - You are never charged when a check cannot reach a definite answer
  • Global Coverage - Support for all major email providers worldwide

Quick Example

const BillionVerify = require('billionverify-sdk');
const client = new BillionVerify('YOUR_API_KEY');

const result = await client.verify({
  email: 'user@example.com'
});

console.log(result);
// { email: "user@example.com", status: "valid", score: 0.95 }

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