Clustox is a software engineering and product development company building scalable SaaS, AI, web, mobile, cloud, and developer platforms.

We partner with startups, growth-stage companies, and enterprises to design, build, modernize, and scale software products.

SaaS · AI/ML · Web · Mobile · Cloud · DevOps · APIs · QA Automation · Developer Tools

This GitHub organization hosts our open-source projects, SDKs, integrations, engineering tools, experiments, and developer resources.

🌐 Website: clustox.com

EmailVerify.io is an email verification and email intelligence platform supported by the Clustox engineering team.

It provides APIs, SDKs, integrations, and developer tools for validating email addresses and improving email-data quality.

• ✅ Email syntax validation
• 🌐 Domain & DNS validation
• 📬 MX record verification
• 🔍 SMTP mailbox verification
• 🗑️ Disposable email detection
• 🎯 Catch-all detection
• 👥 Role-based email detection
• 🛡️ Risk & deliverability signals
• 📦 Bulk email verification
• ⚡ Real-time API verification

Resource Link

🌐 EmailVerify.io Visit Website →

⚡ Email Verification API Explore API →

🔌 API Platform Developer APIs →

📚 API Documentation Read Docs →

🧰 SDKs & Libraries View Libraries →

🐙 EmailVerify.io GitHub Explore GitHub →

Language Repository Use Cases

🐍 Python emailverify-python Django, Flask, FastAPI, Data Pipelines

🟨 JavaScript / emailverify-javascript Node.js, Express, Node.js Next.js, Serverless

💎 Ruby emailverify-ruby Rails, Ruby Apps, Background Jobs

🐘 PHP emailverify-php-sdk Laravel, Symfony, PHP Apps

🔵 Go emailverify-go Go APIs, Microservices, Backend Services

🟣 C# / .NET emailverify-csharp-sdk ASP.NET, Enterprise Apps, .NET APIs

Official EmailVerify.io node for building automated email-verification workflows in n8n.

Lead Capture
     │
     ▼
EmailVerify.io
     │
 ┌───┴────┐
 ▼        ▼
Valid   Invalid
 │        │
 ▼        ▼
CRM    Suppress

👉 Explore n8n Integration

The EmailVerify.io MCP project brings email intelligence capabilities to MCP-compatible AI applications and agents.

Use cases: AI Sales Agents · CRM Assistants · Lead Enrichment · Prospecting · Data Cleaning · AI Automation

👉 Explore EmailVerify.io MCP

The EmailVerify.io Email Verification API enables developers to validate email addresses programmatically before accepting, storing, or using them.

• SaaS Signup Validation --- reduce invalid, disposable, and low-quality signups.
• CRM Data Quality --- validate contacts before adding leads to CRM systems.
• Sales & Prospecting --- verify prospect data before outbound campaigns.
• Email Marketing --- identify potentially invalid or risky addresses before campaigns.
• AI Agents --- verify contact data before outreach or CRM updates.

👉 Explore the Email Verification API →

EmailVerify.io also has a dedicated GitHub organization for its broader open-source ecosystem.

The EmailVerify.io organization is home to open-source projects, examples, developer tools, integrations, research, and community resources related to email verification and email intelligence.

Beyond EmailVerify.io, we build and maintain open-source projects covering software engineering, developer productivity, AI, DevOps, and engineering analytics.

👉 Explore Middleware

👉 Explore Clustox Engineering Handbook

We welcome meaningful contributions to our open-source projects.

• 🐛 Report bugs
• 💡 Suggest features
• 📖 Improve documentation
• 🧪 Add tests
• 🔧 Submit pull requests
• 🔌 Build integrations
• ⭐ Star useful repositories

🌐 Website · 🐙 GitHub · 📖 Engineering Handbook

🌐 Website · ⚡ Email Verification API · 📚 API · 🧰 SDKs · 🐙 GitHub

Python · JavaScript · Ruby · PHP · Go · C#/.NET

n8n · MCP

Engineering software and open-source technology at Clustox.