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Email Verification Tools

Email verification and validation tools with bulk verification support

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Overview

Email Verification Tools gives AI agents the ability to validate email addresses in real time through a managed email validation api — protecting deliverability rates and data quality at the point of collection, without requiring developers to build and maintain custom SMTP verification infrastructure or subscribe to a separate email verifier api service.

It acts as a standardized bridge between large language models and live email validation infrastructure. Instead of accepting email addresses blindly or running periodic batch cleanup jobs, models can perform multi-stage verification checks through a controlled MCP interface at the exact moment an address is collected — functioning as a real time email verification api for every input.

By integrating Email Verification Tools, developers enable AI agents to:

• Validate email format, domain health, and mailbox existence in a single call with verify_email • Confirm the domain has active MX records capable of receiving mail • Perform SMTP-level mailbox checks to determine if the address will accept messages — without sending a test email • Filter out invalid, disposable, role-based, and non-existent addresses before they enter any downstream system

This MCP is the essential free email verification api equivalent for AI-driven workflows — critical for lead generation pipelines, sign-up form validation, CRM data cleaning, cold outreach tools, and any agent that collects or processes email addresses at scale and needs to maintain clean, deliverable contact data.

Highlights

Protocol
MCP v1.0
Security
OAuth 2.0
Access
Real-time
Tools
2 Tools

Standardized bridge for real-time model context.

Installation

Connect this server to your local or remote agent environment.

mcp_config.json
{
  "mcpServers": {
    "mcp360": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://connect.mcp360.ai/v1/email-verification/mcp?token=YOUR_API_KEY"
      ]
    }
  }
}
Replace YOUR_API_KEY with your actual key from the dashboard.

Skills & Capabilities

What this MCP server can do for your AI agents.

CAPABILITIES
--- name: email-verification description: Verify email addresses for deliverability, detect disposable/temporary emails, identify spam traps, and validate email quality with bulk verification support. Use when users need to clean email lists, validate signups, reduce bounce rates, check email authenticity, or verify contact information before sending campaigns. metadata: author: MCP360 version: "1.0.0" tags: - Email - Verification - Validation - Data Quality - Marketing - Deliverability - Anti-Spam - List Cleaning keywords: - email - verification - validation - deliverable - bounce - spam - invalid - quality - check - verify - mail - email quality - email validation - bulk-verification - bulk-email - mass-email-check - email-list-validation creditsPerUse: 1 isPremium: false --- # Email Verification Tools Professional email verification and validation service with real-time deliverability checks, spam trap detection, and disposable email filtering. Protect your sender reputation and improve email campaign performance by ensuring list quality before sending. ## Core Capabilities - **Single Email Verification**: Validate individual email addresses with comprehensive checks for syntax, domain validity, SMTP verification, and mailbox existence, and returns detailed results including deliverability status, email quality score, free/disposable detection, role account identification, and catch-all status - **Bulk Email Verification**: Process up to 10 email addresses simultaneously with parallel verification for efficient list cleaning, and returns individual results for each email with comprehensive validation data, bounce probability, spam trap likelihood, and quality recommendations ## API Access ### MCP360 Connect Endpoints - **Base URL**: `https://connect.mcp360.ai/api/v1` - **Service Path**: `email-verification` - **Authentication**: Bearer token (API key required) ### Service Metadata Endpoint Retrieve service information and available tools: ```bash curl "https://connect.mcp360.ai/api/v1/email-verification" \ -H "Authorization: Bearer YOUR_API_KEY" ``` ### Tool Execution Endpoint Execute specific tools by making POST requests: ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/{tool_name}" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{...parameters...}' ``` ## Available Tools ### Verify Email Perform comprehensive validation on a single email address with real-time SMTP verification and deliverability analysis. **Tool Name:** `verify_email` **Credits Required:** 1 **Parameters:** - `email` (string, required): Email address to verify like "[email protected]" or "[email protected]" **Verification Checks Performed:** - **Syntax Validation**: RFC 5322 compliance check - **Domain Verification**: DNS MX record validation - **SMTP Verification**: Mailbox existence check - **Disposable Detection**: Identify temporary email services - **Role Account Detection**: Detect info@, admin@, support@ addresses - **Free Provider Detection**: Gmail, Yahoo, Outlook identification - **Spam Trap Detection**: Known spam trap analysis - **Catch-All Detection**: Domain catch-all configuration check **Example:** ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/verify_email" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "email": "[email protected]" }' ``` **Response Format:** ```json { "email": "[email protected]", "result": "deliverable", "score": 95, "checks": { "syntax": "valid", "domain": "valid", "smtp": "valid", "mailbox_exists": true, "disposable": false, "free_provider": true, "role_account": false, "catch_all": false, "spam_trap": false }, "provider": "gmail", "recommendation": "safe_to_send" } ``` ### Bulk Verify Emails Verify multiple email addresses in a single request for efficient list cleaning and validation with parallel processing. **Tool Name:** `bulk_verify_emails` **Credits Required:** 3 **Parameters:** - `emails` (array of string, required): Array of 1 to 10 email addresses to verify like ["[email protected]", "[email protected]"] - `timeout` (number, optional): Maximum verification time per email in seconds from 5 to 30 (Default: 10) **Example:** ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/bulk_verify_emails" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "emails": [ "[email protected]", "[email protected]", "[email protected]", "[email protected]" ], "timeout": 15 }' ``` **Response Format:** ```json { "total": 4, "verified": 4, "results": [ { "email": "[email protected]", "result": "deliverable", "score": 98 }, { "email": "[email protected]", "result": "undeliverable", "score": 12, "reason": "mailbox_does_not_exist" }, { "email": "[email protected]", "result": "risky", "score": 55, "reason": "disposable_email" }, { "email": "[email protected]", "result": "deliverable", "score": 92 } ], "statistics": { "deliverable": 2, "undeliverable": 1, "risky": 1 } } ``` **Common Use Cases:** **Marketing List Validation:** ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/bulk_verify_emails" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "emails": [ "[email protected]", "[email protected]", "[email protected]" ] }' ``` **Signup Form Validation:** ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/verify_email" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "email": "[email protected]" }' ``` **Database Cleanup:** ```bash curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/bulk_verify_emails" \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "emails": [ "[email protected]", "[email protected]", "[email protected]", "[email protected]", "[email protected]" ], "timeout": 20 }' ``` ## Result Types - **deliverable**: Email is valid and can receive messages (Score: 80-100) - **undeliverable**: Email does not exist or cannot receive messages (Score: 0-30) - **risky**: Email may have issues - disposable, catch-all, or low quality (Score: 31-79) - **unknown**: Verification inconclusive due to server timeout or temporary issues ## Authentication All API requests require a Bearer token for authentication: ```bash -H "Authorization: Bearer YOUR_API_KEY" ``` ## Rate Limiting - Single verification (verify_email): 1 credit per request - Bulk verification (bulk_verify_emails): 3 credits per request - Rate limit: 500 requests per hour - Concurrent requests: Up to 5 parallel calls - Maximum bulk size: 10 emails per request ## Support - **Blog & Tutorials**: https://mcp360.ai/blog - **Contact**: https://mcp360.ai/contact
These capabilities are available through the MCP protocol interface.

Watch Demo

See Email Verification Tools in action.

Available Tools

Technical specifications for the 2 available protocol tools.

2 tools

bulk_verify_emails tool

Input Specification
{
  "type": "object",
  "required": [
    "emails"
  ],
  "properties": {
    "emails": {
      "type": "array",
      "items": {
        "type": "string",
        "format": "email"
      },
      "maxItems": 10,
      "minItems": 1,
      "description": "Array of email addresses to verify (max 10 emails)"
    },
    "timeout": {
      "type": "number",
      "default": 10,
      "description": "Timeout in seconds for each verification (default: 10)"
    }
  },
  "additionalProperties": false
}
Output Response
{
  "type": "object",
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "email": {
            "type": "string"
          },
          "result": {
            "type": "string"
          },
          "quality_score": {
            "type": "string"
          },
          "execution_time": {
            "type": "number"
          }
        }
      }
    },
    "summary": {
      "type": "object",
      "properties": {
        "totalEmails": {
          "type": "number"
        },
        "resultBreakdown": {
          "type": "object",
          "properties": {
            "ok": {
              "type": "number"
            },
            "invalid": {
              "type": "number"
            },
            "unknown": {
              "type": "number"
            }
          }
        },
        "qualityBreakdown": {
          "type": "object",
          "properties": {
            "bad": {
              "type": "number"
            },
            "good": {
              "type": "number"
            },
            "average": {
              "type": "number"
            }
          }
        },
        "averageExecutionTime": {
          "type": "number"
        }
      }
    }
  }
}

Direct API Access

Production-ready REST endpoints for custom integrations.

POSTServer Metadata
/api/v1/email-verification
curl "https://connect.mcp360.ai/api/v1/email-verification" \
  -H "Authorization: Bearer YOUR_API_KEY"
POSTExecute Tool
/api/v1/email-verification/{tool_name}
curl -X POST "https://connect.mcp360.ai/api/v1/email-verification/bulk_verify_emails" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "emails": [
    "[email protected]"
  ]
}'
Authentication

To authenticate, include your API key in the Authorization header using the Bearer scheme. Alternatively, you can use the X-API-KEY header.

Infrastructure

Unified MCP Gateway

One hub for 100+ production-ready tools with centralized management.

Unified API Key

Access 100+ MCP servers with a single authentication token.

Instant Testing

Test and debug any MCP server instantly in our integrated environment.

Centralized Billing

One monthly subscription for all your AI tool integrations and credits.

Real-World Applications

Practical Use Cases

Discover how Email Verification solves real problems and drives measurable results across different scenarios

Lead Quality Assurance

Verify email addresses before adding to marketing lists to ensure deliverability

Example

"Check that leads from your form submission are real, active email addresses"

Key Benefits

  • Higher deliverability
  • Lower bounce rates
  • Better sender reputation

List Cleaning Before Campaign

Validate existing email list to remove invalid addresses before sending campaigns

Example

"Clean 50K contacts from old database to improve campaign metrics"

Key Benefits

  • Better open rates
  • Lower bounce rates
  • ISP reputation protection

Signup Form Protection

Real-time email verification during signup to catch invalid addresses immediately

Example

"Prevent users from signing up with typos like 'gmail.com' vs 'gmial.com'"

Key Benefits

  • Better data quality
  • Improved engagement
  • Reduced support tickets

CRM Data Hygiene

Automatically clean CRM contact data to maintain list quality

Example

"Batch verify all CRM emails monthly to remove bad contacts"

Key Benefits

  • Accurate targeting
  • Compliance
  • Better reporting

Fraud Prevention

Detect suspicious or disposable email addresses during registration

Example

"Block sign-ups with disposable emails to prevent account abuse"

Key Benefits

  • Reduced fraud
  • Better user quality
  • Improved security

Frequently Asked Questions

What is Email Verification Tools?

Email Verification Tools is an MCP server that provides structured access to email verification tools capabilities through a standardized protocol, enabling AI models to retrieve and process real-time data.

Which AI models are supported?

Any model that supports MCP protocol including Claude (via Claude Desktop), GPT-4, Gemini, and open-source LLMs through compatible frameworks.

How do I authenticate?

The server supports OAuth 2.0 authentication with API keys. You'll receive credentials upon registration which can be configured in your MCP client.

Is there rate limiting?

Yes, rate limits apply based on your subscription tier. Free tier includes generous limits for development, with higher limits available in paid plans.

Can I use this in production?

Absolutely. Email Verification Tools is designed for production use with enterprise-grade reliability, security, and performance.

Deploy AI agent with Email Verification Tools today.

Start building production-ready AI agent integrations in minutes with standardized protocol access.

Get Started FreeDocumentation
Enterprise Ready
Secure OAuth
24/7 Support