Email Checker MCP Server
For your cold outbound email, this tool will help you validate email addresses.
Features
- Email address validation
- Simple JSON response format
- No API key required
Prerequisites
- Python 3.x
Installation
- Clone the repository:
- Install dependencies using uv:
Note: We use uv
instead of pip since the project uses pyproject.toml
for dependency management.
Configure as MCP Server
To add this tool as an MCP server, you'll need to modify your Claude desktop configuration file.
The configuration file location depends on your operating system:
- MacOS:
~/Library/Application\ Support/Claude/claude_desktop_config.json
- Windows:
%APPDATA%/Claude/claude_desktop_config.json
Add the following configuration to your JSON file:
⚠️ IMPORTANT:
- Replace
YOUR_USERNAME
with your actual system username - Make sure the directory path matches your local installation
Usage
The service provides a FastMCP tool for validating email addresses:
Example Use:
Prompt: Does this email exist?
Parameters:
email
: String containing the email address to validate
Example Response:
API Usage Limits
The service uses 2IP's Email API which provides:
- No API key required
Error Handling
The service includes error handling for:
- Invalid email format
- API request failures
- Network timeouts
- Rate limiting
You must be authenticated.
local-only server
The server can only run on the client's local machine because it depends on local resources.
Tools
Enables users to validate the existence of email addresses through a simple FastMCP tool, offering JSON responses without requiring an API key.
- Features
- Prerequisites
- Installation
- Configure as MCP Server
- Usage
- Example Use:
- API Usage Limits
- Error Handling
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