mcpdirectory.dev
9,129 servers · updated 23 Sept

Verify MCP server

community Active last commit 24 d 
{
  "mcpServers": {
    "proofinbox-verify": {
      "type": "http",
      "url": "https://mcp.proofinbox.com/mcp"
    }
  }
}
file .mcp.json (in your project root)version 0.1.1

What it does

This server provides email verification services through prepaid credits purchased via Stripe. It exposes email validation tools for MCP agents like Claude, Cursor, and Grok Bot, allowing developers to verify email addresses with a credit-based billing model.

  • Check whether an email address is valid before adding it to a mailing list.
  • Verify email syntax and domain existence as part of user registration workflows.
  • Monitor credit balance and manage prepaid email verification credits across MCP-compatible applications.

Tools this server exposes

ToolDoes
balanceCheck remaining email verification credits in your account.
verify_emailValidate an email address; fresh checks cost 1 credit, while cached results and syntax checks cost 0.
receiptsRetrieve checkout session details using a session ID.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.