MCP Email Verifier

Name: MCP Email Verifier
Author: mambalabsdev

by mambalabsdevversion 1.0.1i★ –iRuns on your computer

Registry namecom.mambabuilt/mcp-email-verifier

Install

Overview

Description from the maker (original English)

Verify email lists on your own ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon key.

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 checksi0 of 1 passedChecked from public information; code not scanned yet
UsageiEarly↓ 556/wk · ★ –

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: Runs on your computer
Transport: stdio
Category: Chat & email
You need to fill in: APIFY_TOKEN, EMAIL_VERIFIER_API_KEY

Install

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

Before you install

Basic checks: 0 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: APIFY_TOKEN, EMAIL_VERIFIER_API_KEY

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

You need

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 …”.

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

{
  "mcpServers": {
    "email-verifier": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-email-verifier"
      ],
      "env": {
        "APIFY_TOKEN": "your-value",
        "EMAIL_VERIFIER_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add email-verifier --env APIFY_TOKEN=your-value --env EMAIL_VERIFIER_API_KEY=your-value -- npx -y @mambalabsdev/mcp-email-verifier

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": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-email-verifier"
      ],
      "env": {
        "APIFY_TOKEN": "your-value",
        "EMAIL_VERIFIER_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": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-email-verifier"
      ],
      "env": {
        "APIFY_TOKEN": "your-value",
        "EMAIL_VERIFIER_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 one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

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

Values you fill in

APIFY_TOKEN secret required env
Apify API token from https://console.apify.com/account/integrations
EMAIL_VERIFIER_API_KEY secret required env
Your own API key for ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon.

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

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

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 8, 2026

! Caution
Maker matches the repo
The publisher (mambabuilt.com) is not the repo owner (mambalabsdev); someone else may have listed it
… 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 applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1850 servers in this category
Published to the registry more recently than 88% of the other 1850 servers in this category
Basic checks equal to or better than 21% of the other 1850 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 MCP Email Verifier safe?

It passed 0 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: APIFY_TOKEN, EMAIL_VERIFIER_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 3 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

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

Alternatives

Servers in the same category from other makers, sorted by stars.

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

Vexa

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

by Vexa-aiWidely used★ 2.9KUpdated 2 months ago

Runs in the cloud✓ vexa.ai

Install

emailmd

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

by anypostGrowing↓ 5.3K/wk★ 1.4KUpdated 32 days ago

Computer or cloud✓ emailmd.dev

Install

MCP WhatsApp Cloud

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

by codesparEarly↓ 63/wk★ 277Updated 5 months ago

Runs on your computer

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.

Email Verifier MCP Server

An MCP server for the Mamba Labs Email List Verifier, Bring Your Own Key actor on Apify. Give it a list of email addresses and it checks each one with the verification service you already pay for: ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon Email Verifier. You supply the service key.

What's Inside

What it does
Quick start
Prerequisites
Example prompts
Tool
Inputs
Pricing
Your key
Full actor documentation
License

What it does

One flat row per address: verdict (valid, invalid, catch_all, risky, or unknown), the service's own provider_status and provider_sub_status, is_role, is_free_email, is_disposable, and did_you_mean for a spelling fix.
One layout for every service: the five services spell their answers differently; every row uses the same five verdicts and the same columns.
Credits protected: an address with broken syntax is never sent, a repeat is checked once, and a rejected key or an empty service balance stops the run from sending more.

Bad input returns one free row whose error_reason starts with input_invalid:. With no key set, the tool refuses before any run starts, so nothing is charged.

All of the work runs on Apify. This package is a thin client that starts the actor run, waits for it, and hands back the dataset rows.

Quick start

You need Node.js 18 or newer, an Apify account with an API token, and an API key for one of the five services.

Add this to your Claude Desktop config (claude_desktop_config.json), Cursor, or any MCP client:

"mcpServers": { "mamba-email-verifier": { "command": "npx", "args": [ "-y", "@mambalabsdev/mcp-email-verifier" ], "env": { "APIFY_TOKEN": "your-apify-token", "EMAIL_VERIFIER_API_KEY": "your-verification-service-key" } } } }

Restart the client. The verify_emails tool appears.

Prerequisites

Node.js 18 or newer.
An Apify API token from console.apify.com/account/integrations, set as APIFY_TOKEN. The server lists its tool without a token; a call needs one.
Your own API key for ZeroBounce, NeverBounce, MillionVerifier, BounceBan, or Reoon Email Verifier, set as EMAIL_VERIFIER_API_KEY.

Example prompts

"Verify these 40 addresses with my NeverBounce key and list the ones that are not valid."
"Which of these leads are catch all or role addresses?"
"Check jane@example.com and tell me if the domain looks like a typo."

Tool

verify_emails. One tool. Example arguments:

"emails": [ "jane@example.com", "sales@example.org" ], "provider": "neverbounce" }

Inputs

Every buyer facing input of the actor except api_key, which comes from EMAIL_VERIFIER_API_KEY in the server environment so it never passes through the conversation. Omitted inputs take the actor's own defaults. Numbers are sent as strings.

Input	Type	Description
`emails`	array	Required. The addresses to verify, 1 to 5,000 per run
`email`	string	One more address, added to `emails`
`provider`	string	zerobounce (default), neverbounce, millionverifier, bounceban, or reoon. The service your key belongs to
`concurrency`	string	Addresses checked at the same time, 1 to 20. Default 5
`max_charge_usd`	string	Optional. The run stops before an actor charge that would pass this amount

Pricing

Two separate bills. Your verification service bills each check to your account there, at your plan's price. The actor charges per event on Apify, billed to your Apify account. Prices in USD.

Event	Free plan	Bronze	Silver	Gold
`email-verified`, one address your service answered valid, invalid, catch all, or risky	$0.0016	$0.00152	$0.00144	$0.00136
`apify-actor-start`, per run start	$0.0006	$0.0006	$0.0006	$0.0006

Unknown answers, error rows, addresses with broken syntax, repeats in the same run, and refused input are free. Mamba Labs pays the Apify platform costs of the run.

Your key

The key is read from this server's environment and passed in the run input as a secret field. The actor sends it only to the service you chose and never logs, stores, or returns it. Apify blocks the outbound mail port, so every mailbox check runs at your service.

Full actor documentation

apify.com/mambalabs/email-verifier

License

MIT. See LICENSE.

MCP Email Verifier

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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

Email Verifier MCP Server

What's Inside

What it does

Quick start

Prerequisites

Example prompts

Tool

Inputs

Pricing

Your key

Full actor documentation

License