MCP.Market

Groundmail MCP server

online · 100% uptime
by Groundmail·io.github.Groundmail/groundmail·v0.27.0
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Send transactional email and manage domains, templates, webhooks and suppressions with Groundmail.

A96/100grade A
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Safety scan
A96/100

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Adoption
Growing

0 stars

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Groundmail tools

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How Groundmail compares

Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
96/100
higher than 94% of 916 Email servers
Uptime
100%
of our recent checks; the typical remote Email server answers 100%
Response time
163 ms
faster than 73% of 609 Email servers

Release history: 13 versions in the registry since 2026-10-16, latest 2026-11-04, typically one every 1 day.

Install Groundmail in Claude Code, Cursor or VS Code

claude mcp add --transport http groundmail https://mcp.groundmail.dev/mcp
Add to Cursor

What the publisher says

From the Groundmail repository's README, as published. We do not edit it. Read it on GitHub

groundmail-mcp

MCP server for Groundmail: send email and manage domains, webhooks, suppressions and templates from Claude, Claude Code, ChatGPT, Cursor and other MCP clients.

Install: npx -y groundmail-mcp · Docs: https://docs.groundmail.dev/ai/mcp

Transports

Optional: GROUNDMAILAPIURL (e.g. http://localhost:3003/api for local API).

Local HTTP endpoint: http://127.0.0.1:3000/mcp · health: GET /health Hosted health: GET https://mcp.groundmail.dev/health

Hosted OAuth: add only "url": "https://mcp.groundmail.dev/mcp" — the client runs the browser consent flow. Bearer gm_… still works for advanced setups.

Cursor (stdio)

.cursor/mcp.json:

{
  "mcpServers": {
    "groundmail": {
      "command": "npx",
      "args": ["-y", "groundmail-mcp"],
      "env": {
        "GROUNDMAIL_API_KEY": "gm_your_key_here"
      }
    }
  }
}

Cursor (local HTTP)

npx -y groundmail-mcp --http --port 3000
{
  "mcpServers": {
    "groundmail": {
      "url": "http://127.0.0.1:3000/mcp",
      "headers": {
        "Authorization": "Bearer gm_your_key_here"
      }
    }
  }
}

Cursor (hosted)

{
  "mcpServers": {
    "groundmail": {
      "url": "https://mcp.groundmail.dev/mcp",
      "headers": {
        "Authorization": "Bearer gm_your_key_here"
      }
    }
  }
}

Claude Code

# Hosted, OAuth: then run /mcp, pick groundmail, Authenticate
claude mcp add --transport http groundmail https://mcp.groundmail.dev/mcp

# Hosted, API key
claude mcp add --transport http groundmail https://mcp.groundmail.dev/mcp \
  --header "Authorization: Bearer $GROUNDMAIL_API_KEY"

# Local stdio
claude mcp add groundmail --env GROUNDMAIL_API_KEY=gm_your_key_here -- npx -y groundmail-mcp

Claude and ChatGPT

Add a custom connector with the URL https://mcp.groundmail.dev/mcp and sign in to Groundmail when prompted (ChatGPT needs developer mode). Step-by-step: https://docs.groundmail.dev/ai/mcp

Tools

See https://docs.groundmail.dev/ai/mcp — emails, domains, webhooks, suppressions, templates, deliverability, webhook test.

License

MIT

Nothing above is checked by us. What we check is on the safety report.

Groundmail: common questions

Is Groundmail MCP server safe?
Yes, by our scan: it is graded A (96/100). Read the Groundmail safety report
How do I install Groundmail?
It runs remotely at mcp.groundmail.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Groundmail need an API key?
Yes. The registry entry asks for GROUNDMAIL_API_KEY.
Is Groundmail maintained?
The last commit was 18 days ago (2026-10-16). The latest release is v0.27.0.
Is Groundmail up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Groundmail?
Servers from other publishers that do the same job: MisarMail MCP Server, SendGrid MCP Server and Qmailing MCP server.
How does Groundmail compare with other Email MCP servers?
safety score 96/100 (higher than 94% of 916 Email servers); uptime 100% (of our recent checks; the typical remote Email server answers 100%); response time 163 ms (faster than 73% of 609 Email servers). Full comparison.

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