MailboxValidator/mcp-mailboxvalidator

Overview

MailboxValidator/mcp-mailboxvalidator is a TypeScript server that implements the Model Context Protocol to validate email addresses through the MailboxValidator API. It accepts email addresses and returns validation status, freeing developers from writing direct API integration code for MCP-compatible clients.

Best for

Best for
Developers building MCP-based assistants or agents that need one-step email validation without writing custom HTTP calls

Use cases

• Integrate email validation into AI assistant workflows via MCP
• Validate user input emails in agent-based automation tools
• Build custom email hygiene pipelines that leverage MailboxValidator's database

Notes

MailboxValidator/mcp-mailboxvalidator is a TypeScript server that implements the Model Context Protocol to validate email addresses through the MailboxValidator API. It accepts email addresses and returns validation status, freeing developers from writing direct API integration code for MCP-compatible clients.

0 stars on GitHub. Last updated 2026-05-28. Licensed MIT.

Use cases

• Integrate email validation into AI assistant workflows via MCP
• Validate user input emails in agent-based automation tools
• Build custom email hygiene pipelines that leverage MailboxValidator’s database

Pros

• Simplifies email validation by wrapping a reliable third-party API in an MCP server
• TypeScript implementation makes it easy to extend or embed in TypeScript projects
• Zero internal complexity – validation logic is handled externally by MailboxValidator

Cons

• Requires a MailboxValidator API key and incurs usage costs beyond API limits
• No built-in fallback or caching for offline validation
• Low community adoption (0 stars) suggests limited testing or support

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.