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atdata-email-verification-mcp-server

by avivshafir
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Python
Remote

AtData SafeToSend MCP Server

A Model Context Protocol (MCP) server that provides email verification services using AtData's SafeToSend API. This server allows you to verify email addresses to filter out invalid and high-risk ones, resulting in higher open rates, clicks, and conversions.

https://docs.atdata.com/reference/safe-to-send

Features

  • Email Verification: Verify individual email addresses using AtData's SafeToSend API

  • Batch Verification: Verify multiple email addresses at once with summary statistics

  • Comprehensive Error Handling: Detailed error messages for different failure scenarios

  • Environment Variable Support: Secure API key management through environment variables

  • Rate Limiting Awareness: Proper handling of API rate limits

Related MCP server: Amazon Athena MCP Server by CData

Installation

  1. Clone this repository:

git clone <repository-url> cd atdata-mcp-server

  1. Install dependencies using uv (recommended) or pip:

# Using uv uv sync # Using pip uv pip install .

Setup

Get AtData API Key

  1. Sign up for an AtData account at https://atdata.com

  2. Obtain your API key from the AtData dashboard

  3. Set up your API key as an environment variable:

export ATDATA_API_KEY="your-api-key-here"

Or create a .env file in the project root:

ATDATA_API_KEY=your-api-key-here

Usage

Running the Server

Method 1: Direct Python execution

python server.py

Method 2: Using FastMCP CLI

fastmcp run server.py

Method 3: Install for Claude Desktop

fastmcp install server.py

Using with uv

If you're using uv, you can also run the server with:

{ "mcpServers": { "atdata-email-verification-mcp-server": { "command": "uv", "args": ["run", "python", "server.py"], "cwd": "/path/to/your/atdata-email-verification-mcp-server", "env": { "ATDATA_API_KEY": "your_api_key_here" } } } }

Available Tools

1. verify_email

Verify a single email address.

Parameters:

  • email (string, required): The email address to verify

  • api_key (string, optional): AtData API key (uses environment variable if not provided)

Example:

{ "email": "user@example.com", "api_key": "your-api-key" # Optional if ATDATA_API_KEY is set }

Response:

{ "success": True, "email": "user@example.com", "verification_result": { "email": "user@example.com", "status": "valid", "deliverable": True, "risk_level": "low", # Additional verification details from AtData API } }

2. batch_verify_emails

Verify multiple email addresses in batch.

Parameters:

  • emails (array of strings, required): List of email addresses to verify

  • api_key (string, optional): AtData API key (uses environment variable if not provided)

Example:

{ "emails": ["user1@example.com", "user2@domain.com", "invalid@email"], "api_key": "your-api-key" # Optional if ATDATA_API_KEY is set }

Response:

{ "results": [ { "success": True, "email": "user1@example.com", "verification_result": { /* verification details */ } }, { "success": True, "email": "user2@domain.com", "verification_result": { /* verification details */ } }, { "error": "Bad request. Please check the email format.", "email": "invalid@email", "status_code": 400 } ], "summary": { "total": 3, "successful": 2, "failed": 1, "success_rate": 66.67 } }

Error Handling

The server provides comprehensive error handling for various scenarios:

  • Missing API Key: Returns error when no API key is provided

  • Authentication Errors: Handles invalid API keys (401 status)

  • Bad Requests: Handles invalid email formats (400 status)

  • Rate Limiting: Handles API rate limit exceeded (429 status)

  • Network Issues: Handles connection errors and timeouts

  • Unexpected Errors: Catches and reports any unexpected exceptions

API Documentation

This server is based on the AtData SafeToSend API. For more details about the underlying API, see:

Development

Project Structure

atdata-mcp-server/ ├── src/ │ └── server.py # Main MCP server implementation ├── pyproject.toml # Project configuration and dependencies ├── uv.lock # Locked dependencies └── README.md # This file

Contributing

  1. Fork the repository

  2. Create a feature branch

  3. Make your changes

  4. Add tests if applicable

  5. Submit a pull request

License

This project is licensed under the MIT License. See the LICENSE file for details.

Support

For issues related to:

  • This MCP Server: Open an issue in this repository

  • AtData API: Contact AtData support or check their documentation

  • FastMCP Framework: Check the FastMCP documentation

One-click Deploy
A
security – no known vulnerabilities
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license - not found
A
quality - confirmed to work

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