io.mailtrap/mcp

mailtrap

Official MCP Server for Mailtrap

61 12 tools GitHub npm

No known CVEs

No license

Actively maintained

Last commit 4d ago

Works with most clients

Transport: stdio, sse, http

12 tools · ~1.3k tok

Grade B · 0.6% of 200K ctx

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Other

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, sse, http · Node 18+

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

{
  "mcpServers": {
    "mailtrap": {
      "env": {
        "DEFAULT_FROM_EMAIL": "your_sender@example.com",
        "MAILTRAP_API_TOKEN": "your_mailtrap_api_token",
        "MAILTRAP_ACCOUNT_ID": "your_account_id",
        "MAILTRAP_TEST_INBOX_ID": "your_test_inbox_id"
      },
      "args": [
        "-y",
        "mcp-mailtrap"
      ],
      "command": "npx"
    }
  }
}

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[![MCPpedia Score](https://mcppedia.org/api/badge/io-mailtrap-mcp)](https://mcppedia.org/s/io-mailtrap-mcp)

Read me

What io.mailtrap/mcp does

An MCP server that provides tools for sending and testing in sandbox via Mailtrap.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y 'mailtrap' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

84/100across 5 weighted dimensions

How we score →

0255075100

−16

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked mailtrap against OSV.dev.

Inventory

Tools (12)

Click any tool to inspect its schema.

~1.3k tokens total

Community

Reviews

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Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.mailtrap/mcp safe to use?: io.mailtrap/mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.mailtrap/mcp?: io.mailtrap/mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What can io.mailtrap/mcp do?: io.mailtrap/mcp provides 12 tools: send-email, send-sandbox-email, send-template-email, list-email-logs, get-email-log and 7 more. See the full tools list on the server page for descriptions and parameters.
What AI clients work with io.mailtrap/mcp?: io.mailtrap/mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
Is io.mailtrap/mcp actively maintained?: io.mailtrap/mcp is actively maintained — last commit was 4 days ago. It has 61 GitHub stars.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

{ "mcpServers": { "mailtrap": { "env": { "DEFAULT_FROM_EMAIL": "your_sender@example.com", "MAILTRAP_API_TOKEN": "your_mailtrap_api_token", "MAILTRAP_ACCOUNT_ID": "your_account_id", "MAILTRAP_TEST_INBOX_ID": "your_test_inbox_id" }, "args": [ "-y", "mcp-mailtrap" ], "command": "npx" } } }

Prerequisites

Before using this MCP server, you need to:

Required Environment Variables:

MAILTRAP_API_TOKEN - Required for all functionality

MAILTRAP_ACCOUNT_ID - Required for templates, stats, email logs, sandbox list/show, and sending domains. Optional only for send-email and send-sandbox-email.

Optional (can be passed as tool parameters instead):

DEFAULT_FROM_EMAIL - Default sender email when from is not provided to send-email or send-sandbox-email. Enables switching sender per call via the from parameter.

MAILTRAP_TEST_INBOX_ID - Default test inbox ID for sandbox tools when test_inbox_id is not provided. Enables switching between inboxes per call via the test_inbox_id parameter.

MAILTRAP_SANDBOX_ID - Default sandbox ID for sandbox tools when sandbox_id is not provided. Enables switching between sandboxes per call via the sandbox_id parameter.

MAILTRAP_ORGANIZATION_ID - Required for organization tools (list-sub-accounts, create-sub-account).

MAILTRAP_ORGANIZATION_API_TOKEN - Organization-scoped API token. Required for organization tools (separate from MAILTRAP_API_TOKEN).

Frequently Asked Questions

Is io.mailtrap/mcp safe to use?

io.mailtrap/mcp has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.mailtrap/mcp?

io.mailtrap/mcp supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What can io.mailtrap/mcp do?

io.mailtrap/mcp provides 12 tools: send-email, send-sandbox-email, send-template-email, list-email-logs, get-email-log and 7 more. See the full tools list on the server page for descriptions and parameters.

What AI clients work with io.mailtrap/mcp?

io.mailtrap/mcp is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.

Is io.mailtrap/mcp actively maintained?

io.mailtrap/mcp is actively maintained — last commit was 4 days ago. It has 61 GitHub stars.

MCP Mailtrap Server

An MCP server that provides tools for sending and testing in sandbox via Mailtrap.

Prerequisites

Before using this MCP server, you need to:

Create a Mailtrap account
Verify your domain
Get your API token from Mailtrap API settings
Get your Account ID from Mailtrap account management

Required Environment Variables:

MAILTRAP_API_TOKEN - Required for all functionality
MAILTRAP_ACCOUNT_ID - Required for templates, stats, email logs, sandbox list/show, and sending domains. Optional only for send-email and send-sandbox-email.

Optional (can be passed as tool parameters instead):

DEFAULT_FROM_EMAIL - Default sender email when from is not provided to send-email or send-sandbox-email. Enables switching sender per call via the from parameter.
MAILTRAP_TEST_INBOX_ID - Default test inbox ID for sandbox tools when test_inbox_id is not provided. Enables switching between inboxes per call via the test_inbox_id parameter.
MAILTRAP_SANDBOX_ID - Default sandbox ID for sandbox tools when sandbox_id is not provided. Enables switching between sandboxes per call via the sandbox_id parameter.
MAILTRAP_ORGANIZATION_ID - Required for organization tools (list-sub-accounts, create-sub-account).
MAILTRAP_ORGANIZATION_API_TOKEN - Organization-scoped API token. Required for organization tools (separate from MAILTRAP_API_TOKEN).

Quick Install

Smithery CLI

Smithery is a registry installer and manager for MCP servers that works with all AI clients.

npx @smithery/cli install mailtrap

Smithery automatically handles client configuration and provides an interactive setup process. It's the easiest way to get started with MCP servers locally.

Setup

Claude Desktop

Use MCPB to install the Mailtrap server. You can find those files in [Releases](ht

... View full README on GitHub