Email Guard MCP Server

by mlawsonking Your server? Claim it

local only

Email Guard MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 122 installs a week from npm. Last commit 1 Nov 2026.

Email safety for AI agents: scan inbound for prompt-injection/phishing + outbound for secret leaks.

Installs per day peak 24 · avg 8 · +20% w/w

a month agotoday

122

Installs / week

npm · email-guard-mcp

Stars

0 open issues

1 Nov 2026

Last commit

2 releases in 90 days

MIT

License

JavaScript

What the code does

We read the source, 23 h ago · rules 995398eba69f

In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

Runs an external command agent-guards-plugin/core/cli/exec.js:35, agent-guards/cli/exec.js:32

    const r = spawnSync(comspec, ['/d', '/s', '/c', line], {

Page executes code built at runtime code-guard/index.html:102, email-guard/index.html:131, package-guard/index.html:127

    out.innerHTML = head + "\n\n" + JSON.stringify(j,null,2);

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Nothing serious here today

Today is the operative word: we check Email Guard MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add email-guard-mcp -- npx -y email-guard-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "email-guard-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "email-guard-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.email-guard-mcp]
command = "npx"
args = ["-y", "email-guard-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "email-guard-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "email-guard-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "email-guard-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "email-guard-mcp"
      ]
    }
  }
}

Alternatives to Email Guard MCP

same job, measured the same way

Agent Firewall MCP

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Input/output safety for AI agents: known-pattern injection and obfuscation scan, URL/IP, secrets.

107 installs/wk local only

Agent-Shield

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answering

Agent Security Scanner

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Scan AI agents for tool-calling vulnerabilities: prompt leaks, hijacking, injections, and more.

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Paysafe

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1Claw Vault

by 1clawai

HSM-backed vault secrets for AI agents (JIT fetch) plus prompt-injection and threat scanning.

1 515 installs/wk local only

Agent Immune

by denial-web

AI agent security: prompt injection detection, semantic memory, output scanning, prompt hardening

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Shadowgate MCP

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Security firewall for AI agents — scans MCP calls for injection, secrets, and risks.

answering

Shellward

by jnmetacode

AI agent security: 7 MCP tools for injection detection, PII scanning, command safety, DLP.

404 installs/wk local only

Email Guard MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Email Guard MCP?

Email Guard MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package email-guard-mcp was installed 122 times last week.

How do I connect Email Guard MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls email-guard-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Email Guard MCP?

The npm package email-guard-mcp was installed 122 times in the last week. Week over week that is +20%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Email Guard MCP open source?

Yes — it is published under the MIT licence, written in JavaScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.