Email Verifier

Name: Email Verifier
Author: verifoxturnix1

by verifoxturnix1version 1.2.1i★ –iComputer or cloud

Registry nameai.verifox/email-verifier

Install

Overview

Description from the maker (original English)

Verify email deliverability & find business emails (single or bulk) via the Verifox API.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Computer or cloud
Transport: stdio, Streamable HTTP
Category: Chat & email
You need to fill in: VERIFOX_API_KEY, x-api-key

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
You fill in yourself: VERIFOX_API_KEY, x-api-key

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

Runs in the cloudNothing to install; it connects over the internet
npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Or run it on your computer

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "email-verifier": {
      "command": "npx",
      "args": [
        "-y",
        "verifox-mcp"
      ],
      "env": {
        "VERIFOX_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add --transport http email-verifier https://mcp.verifox.ai/mcp --header 'x-api-key: your-value'

Or run it on your computer

claude mcp add email-verifier --env VERIFOX_API_KEY=your-value -- npx -y verifox-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "email-verifier": {
      "url": "https://mcp.verifox.ai/mcp",
      "headers": {
        "x-api-key": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "email-verifier": {
      "command": "npx",
      "args": [
        "-y",
        "verifox-mcp"
      ],
      "env": {
        "VERIFOX_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "email-verifier": {
      "type": "http",
      "url": "https://mcp.verifox.ai/mcp",
      "headers": {
        "x-api-key": "your-value"
      }
    }
  }
}

Or run it on your computer

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "email-verifier": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "verifox-mcp"
      ],
      "env": {
        "VERIFOX_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

VERIFOX_API_KEY secret required env
Your Verifox API key (foxkey_...). Get 1,000 free credits at https://verifox.ai/dashboard/api
x-api-key secret required HTTP header
Your Verifox API key (foxkey_...). Get 1,000 free credits at https://verifox.ai/dashboard/api

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain verifox.ai (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Chat & emaili

More stars than 0% of the other 1783 servers in this category
Published to the registry more recently than 18% of the other 1783 servers in this category
Basic checks equal to or better than 100% of the other 1783 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Email Verifier safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: VERIFOX_API_KEY, x-api-key

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.1) reached the registry 4 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

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MCP WhatsApp Cloud

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Verifox MCP Server

MCP (Model Context Protocol) server that gives Claude and other AI assistants the Verifox API — verify email deliverability and find business emails, both single and in bulk.

Requires Node.js 18 or newer (the client runs it with npx).

Quick start (published package)

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json) or Claude Code MCP config — no install needed, npx fetches it:

"mcpServers": { "verifox": { "command": "npx", "args": ["-y", "verifox-mcp"], "env": { "VERIFOX_API_KEY": "foxkey_your_key_here" } } } }

Get a free API key (1,000 credits) at https://verifox.ai/dashboard/api. Restart Claude Desktop and ask it to "verify these emails".

Config paths and add-commands for Claude Code, Claude Desktop, ChatGPT, Cursor, Gemini CLI, Kiro and Codex: https://verifox.ai/email-verification-mcp

Tools

Tool	Does	Credits
`verify_email`	Verify ONE email — SMTP deliverability, catch-all, disposable, role, free + 0-100 score	1 / email
`verify_emails`	Bulk-verify a LIST (1–100,000 emails) — submits, waits, returns one result per email	1 / email
`find_email`	Find ONE business email from name + company domain (best match or not_found)	10 / find
`find_emails`	Bulk-find emails for a LIST of up to 1,000 contacts (name + domain each)	10 / contact
`get_credits`	Check the account's remaining Fox Credit balance	free
`get_job`	Poll a long-running `verify_emails` / `find_email` / `find_emails` job for results	—

Verify and find are async for large lists: the bulk tools wait ~55s inline, and hand back a jobId to finish via get_job if a job runs longer. Every verification costs 1 credit, including a repeat answered from the 24-hour result cache.

Usage examples

In Claude Desktop (or any MCP client), just ask:

"Is john@stripe.com deliverable?" → verify_email
"Verify these emails: admin@stripe.com, test@mailinator.com, john.doe@microsoft.com" → verify_emails
"Clean this lead list and keep only the safe addresses" → verify_emails
"Find the email for Patrick Collison at stripe.com" → find_email
"Find emails for these 20 people and their company domains" → find_emails
"How many Verifox credits do I have left?" → get_credits
"Check on that verification job" → get_job

Hosted remote endpoint

No local install: point a remote-capable MCP client at

https://mcp.verifox.ai/mcp

(streamable HTTP) and send your key in the x-api-key header.

Local development

Run straight from source with Bun (no build):

bun install

"mcpServers": { "verifox": { "command": "bun", "args": ["run", "/FULL/PATH/TO/verifox-mcp/src/index.ts"], "env": { "VERIFOX_API_URL": "https://api.verifox.ai", "VERIFOX_API_KEY": "foxkey_your_key_here" } } } }

VERIFOX_API_URL defaults to https://api.verifox.ai when unset. For local development against the API on port 8001, set it to http://localhost:8001. Restart your client and the tools appear in its tool list.

Remote (HTTP) mode

The same server also runs as a streamable-HTTP MCP endpoint (for Smithery, claude.ai connectors, and other remote MCP clients). Set MCP_TRANSPORT=http (or a PORT) and it listens on POST /mcp with a GET /health check:

MCP_TRANSPORT=http PORT=8080 node dist/index.js

or: docker build -t verifox-mcp . && docker run -p 8080:8080 verifox-mcp

In HTTP mode the Verifox API key is read per request from the Authorization: Bearer header (also accepts x-api-key or ?api_key=) — so one hosted endpoint serves many users, each on their own credits.

Environment Variables

Variable	Default	Description
`VERIFOX_API_URL`	`https://api.verifox.ai`	Verifox API base URL
`VERIFOX_API_KEY`	(empty)	Per-user API key (`foxkey_*`), sent as `x-api-key`

Generate a foxkey_* key from the Verifox dashboard (API Keys). The key authenticates every tool call and is the account whose Fox Credits are charged (verify costs 1 credit per email, find 10 per contact; get_credits is free).

Email Verifier

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Or run it on your computer

Or run it on your computer

Or run it on your computer

Or run it on your computer

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

Verifox MCP Server

Quick start (published package)

Tools

Usage examples

Hosted remote endpoint

Local development

Remote (HTTP) mode

or: docker build -t verifox-mcp . && docker run -p 8080:8080 verifox-mcp

Environment Variables