MCP server

MailFerret

com.appin60.mailferret/mailferret

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Find and verify work emails with live SMTP checks and catch-all detection. Free 10 calls/day.

Website

At a glance

Type

MCP server

Publisher

appin60.com (verified by the MCP Registry)

Status

Working at last check

Tools

3

Token cost

About 300 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mailferret https://mailferret.appin60.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mailferret]
url = "https://mailferret.appin60.com/mcp"

Gemini CLI

{"mcpServers":{"mailferret":{"httpUrl":"https://mailferret.appin60.com/mcp"}}}

Cursor

{"mcpServers":{"mailferret":{"url":"https://mailferret.appin60.com/mcp"}}}

VS Code

{"servers":{"mailferret":{"type":"http","url":"https://mailferret.appin60.com/mcp"}}}

Antigravity

agy mcp add mailferret https://mailferret.appin60.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mailferret","server_url":"https://mailferret.appin60.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mailferret","server_url":"https://mailferret.appin60.com/mcp"}

Tools

• domain_email_intel ~94 tokens
  A company's email setup: provider, catch-all, SaaS tools from SPF, DMARC, public emails, likely pattern.
• find_work_email ~119 tokens
  Find a person's verified work email from first name, last name and company domain (live SMTP check, catch-all detection).
• verify_email ~87 tokens
  Check whether an email address is deliverable (MX, provider, catch-all, live SMTP RCPT).

Browse

• Email

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Badge for your README

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