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Welcome to the Leads Sentry documentation. Here you'll find everything you need to integrate our professional email verification platform into your workflow. Our six-layer verification engine ensures 99.8% accuracy for all your email validation needs.

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Quick Start

Get up and running in under 5 minutes

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API Reference

Complete API documentation

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Support

Get help when you need it

Quick Start Guide

Follow these steps to start verifying emails with Leads Sentry:

1

Create an Account

Sign up for a free account at leadssentry.com/register. No credit card required to get started.

2

Download the App

Download the Leads Sentry desktop application for Windows, macOS, or Linux from your dashboard.

3

Get Your API Key

Navigate to Settings → API Keys in your dashboard to generate your API key.

4

Start Verifying

Use the app or API to start verifying emails immediately.

Installation

Leads Sentry is available as a desktop application for all major platforms.

System Requirements

  • Windows: Windows 10 or later, 4GB RAM, 100MB free space
  • macOS: macOS 10.15 or later, 4GB RAM, 100MB free space
  • Linux: Ubuntu 18.04+ or equivalent, 4GB RAM, 100MB free space

Download & Install

# Windows (PowerShell)
Invoke-WebRequest -Uri "https://leadssentry.com/download/windows" -OutFile "LeadsSentry-Setup.exe"
.\LeadsSentry-Setup.exe

# macOS (Terminal)
curl -O https://leadssentry.com/download/macos
sudo installer -pkg LeadsSentry.pkg -target /

# Linux (Terminal)
wget https://leadssentry.com/download/linux
sudo dpkg -i leads-sentry.deb

Authentication

All API requests require authentication using your API key. Include your key in the Authorization header.

Authorization: Bearer YOUR_API_KEY

Example Request

curl -X POST https://api.leadssentry.com/v1/verify \
  -H "Authorization: Bearer ls_live_xxxxxxxxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{"email": "user@example.com"}'

API Overview

The Leads Sentry API is organized around REST. Our API has predictable resource-oriented URLs, accepts JSON request bodies, returns JSON-encoded responses, and uses standard HTTP response codes.

Base URL

https://api.leadssentry.com/v1

Rate Limits

Plan Rate Limit
Free 100 requests/minute
Professional 1,000 requests/minute
Enterprise 10,000 requests/minute

Verify Single Email

Verify a single email address through our six-layer verification engine.

Endpoint

POST /verify

Request Body

{
  "email": "user@example.com",
  "check_catch_all": true,
  "check_role": true
}

Response

{
  "success": true,
  "email": "user@example.com",
  "status": "valid",
  "score": 98,
  "checks": {
    "syntax": true,
    "dns": true,
    "smtp": true,
    "catch_all": false,
    "role": false,
    "disposable": false
  },
  "suggested_correction": null
}

Support

Need help? Our team is here to assist you.

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Email Support

Response within 24 hours

support@leadssentry.com
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Live Chat

Available for Professional+ plans

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