Isitdisposable MCP

Name: Isitdisposable MCP
Author: richelo

by richeloversion 0.1.1i★ 0iRuns on your computer

Registry nameio.github.richelo/isitdisposable-mcp

How to install

What it does

An MCP server that lets AI agents check whether an email address or domain is disposable.

Connects Runs on your computer
Account or key Needs ISITDISPOSABLE_API_KEY
Category Chat & email

Install

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

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Isitdisposable MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Isitdisposable MCP site ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "isitdisposable": {
      "command": "npx",
      "args": [
        "-y",
        "isitdisposable-mcp"
      ],
      "env": {
        "ISITDISPOSABLE_API_KEY": "your-value"
      }
    }
  }
}

Paste the key only into the app’s field, never into a chat or to anyone

Done

Quit Claude and open it again
Done
Try it
Use Isitdisposable MCP and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Isitdisposable MCP or shows a Isitdisposable MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Isitdisposable MCP yet

Isitdisposable MCP runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Isitdisposable MCP

Steps for Claude →You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for Cursor →You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)
Steps for VS Code →You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Chat & email that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

HyperFrames by HeyGen✓ ChatGPT
Inbox Zero✓ ChatGPT
emailmd✓ ChatGPT

Works with Claude Code, with some setup first

You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Isitdisposable MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Isitdisposable MCP site ↗
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done
4
Paste this command and press Enter
```
claude mcp add --scope user isitdisposable --env ISITDISPOSABLE_API_KEY=your-value -- npx -y isitdisposable-mcp
```
Replace “your-value” with your key before pressing Enter
Paste the key only into the app’s field, never into a chat or to anyone
Done
Type /mcp in Claude Code
You should see Isitdisposable MCP listed as connected
Done
Try it
Use Isitdisposable MCP and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Isitdisposable MCP or shows a Isitdisposable MCP tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Isitdisposable MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Isitdisposable MCP site ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Fill in your key
In the Isitdisposable MCP settings, ISITDISPOSABLE_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Isitdisposable MCP and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Isitdisposable MCP or shows a Isitdisposable MCP tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Isitdisposable MCP key (create it on the maker’s site) · Install Node.js on your computer first (one time)

Install Node.js
One time only; it works for every server that needs Node.js
Open the Node.js download page ↗
Done
Sign up and create a Isitdisposable MCP key
Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.
Open the Isitdisposable MCP site ↗
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Fill in your key
In the Isitdisposable MCP settings, ISITDISPOSABLE_API_KEY is empty; add your key and save
Paste the key only into the app’s field, never into a chat or to anyone
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Isitdisposable MCP and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Isitdisposable MCP or shows a Isitdisposable MCP tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Isitdisposable MCP💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user isitdisposable --env ISITDISPOSABLE_API_KEY=your-value -- npx -y isitdisposable-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "isitdisposable": {
      "command": "npx",
      "args": [
        "-y",
        "isitdisposable-mcp"
      ],
      "env": {
        "ISITDISPOSABLE_API_KEY": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "isitdisposable": {
      "command": "npx",
      "args": [
        "-y",
        "isitdisposable-mcp"
      ],
      "env": {
        "ISITDISPOSABLE_API_KEY": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "isitdisposable": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "isitdisposable-mcp"
      ],
      "env": {
        "ISITDISPOSABLE_API_KEY": "your-value"
      }
    }
  }
}

Values you fill in

ISITDISPOSABLE_API_KEY secret required env
The secret API key for isitdisposable.com, used to authenticate every check. Get a free key at https://isitdisposable.com.

Descriptions are as written by the maker.

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

At a glance

GitHub stars i: 0
Downloads per weeki: 36/wk
Licence i: MIT
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.1
Categoryi: Chat & email
Published to registryi: Aug 5, 2026
Code last changedi: Aug 5, 2026
Maker: richelo
Packages: npm: isitdisposable-mcp
Repo: richelo/isitdisposable-mcp
Website: isitdisposable.com
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

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 15, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account richelo, which owns the repo
✓ Pass
Still maintained
Code last changed 3 months ago
✓ Pass
Has a licence
Uses MIT
– 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

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Chat & emaili

More stars than 0% of the other 2048 servers in this category
Published to the registry more recently than 18% of the other 2048 servers in this category
Basic checks equal to or better than 100% of the other 2048 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 Isitdisposable MCP safe?

It passed 3 of 3 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: ISITDISPOSABLE_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 3 months ago, and the latest version (0.1.1) reached the registry 3 months 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: HyperFrames by HeyGen, Inbox Zero, draw.io

Others in the same category

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

HyperFrames by HeyGen

Official HyperFrames by HeyGen: the best AI video editor in chat. Captions, motion graphics, MP4.

by heygen-comWidely used★ 83.9KUpdated yesterday

Runs in the cloud

How to connect

Inbox Zero

Search Gmail and Outlook, save drafts, manage email rules, and view email stats.

by elie222Widely used★ 13KUpdated last month

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draw.io

Create draw.io diagrams in chat from Mermaid or XML, shown live and interactive. 10,000+ shapes.

by jgraphWidely used★ 5.8KUpdated 5 days ago

Runs in the cloud✓ service owner · draw.io

How to connect

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.

isitdisposable-mcp

A Model Context Protocol (MCP) server that lets an AI agent check whether an email address or domain is disposable, using the isitdisposable.com application programming interface (API).

Installation

The server is published to the npm registry and is normally run with npx, so there is nothing to install by hand; the examples below show how to wire it into a Model Context Protocol (MCP) host.

Claude Desktop

Add this to your Claude Desktop configuration:

"mcpServers": { "isitdisposable": { "command": "npx", "args": ["-y", "isitdisposable-mcp"], "env": { "ISITDISPOSABLE_API_KEY": "your_secret_key" } } } }

Claude Code

claude mcp add isitdisposable --env ISITDISPOSABLE_API_KEY=your_secret_key -- npx -y isitdisposable-mcp

Getting an API key

An isitdisposable.com key is required. Get a free key at https://isitdisposable.com (a free tier is available), then set it as ISITDISPOSABLE_API_KEY in the configuration above.

Tools

Tool	What it does
`check_email`	Checks a single email address to see whether it is disposable.
`check_domain`	Checks a single bare domain (no local part) to see whether it is disposable.
`check_batch`	Checks up to 100 email addresses or bare domains at once in a single call. Mix full addresses and bare domains freely in the `items` list; entries containing an `@` sign are sent as email addresses, everything else as a domain.

Every tool returns the same verdict shape. disposable is the core true or false verdict: a disposable address is a throwaway or temporary inbox used to receive a single signup message and evade normal registration requirements, rather than a real, ongoing mailbox. action is the recommended handling of allow, warn, or block. A handful of opt in signals may also be present, including mx_valid (whether the domain's mail servers accept mail), relay (a forwarding or catch all style address), public_domain (a well known free provider such as Gmail), and did_you_mean (a likely intended domain when the one given looks like a typo).

Fail open behavior

This server always fails open. If a network problem, a timeout, a rate limit, or a server error prevents a real check from completing, the tool call still succeeds (it never throws or crashes the connection). It retries once after a short delay, and if that also fails, it returns a result with checked: false, disposable: null, and action: "allow", along with a note explaining that the check could not be completed. An agent using this tool should treat that outcome as inconclusive, not as a signal that the address is safe.

If no API key is configured, the server still starts normally and responds to the Model Context Protocol (MCP) handshake; each tool call then returns an error result pointing to https://isitdisposable.com to get a free key.

Isitdisposable MCP

What it does

Install

Install Node.js

Sign up and create a Isitdisposable MCP key

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Node.js

Sign up and create a Isitdisposable MCP key

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Node.js

Sign up and create a Isitdisposable MCP key

Click this button to open Cursor

Fill in your key

Open the AI chat in Cursor in Agent mode

Try it

Install Node.js

Sign up and create a Isitdisposable MCP key

Click this button to open VS Code

Fill in your key

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

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

Discussion

User reviews

Compared with others in Chat & emaili

Common questions

Others in the same category

HyperFrames by HeyGen

Inbox Zero

draw.io

README from the maker

isitdisposable-mcp

Installation

Claude Desktop

Claude Code

Getting an API key

Tools

Fail open behavior