Mailtea vs Groundmail

A side-by-side look at the Mailtea and Groundmail MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Mailtea logoMailteaCommunication · Local subprocess (stdio)Send email and newsletters with Mailtea over MCP, plus skills for email and website design.45FairAuth: not declaredGroundmail logoGroundmailCommunication · Remote HTTP/SSESend transactional email and manage domains, templates, webhooks and suppressions with Groundmail.58GoodAuth: not declared

Verdict: choose Mailtea for communication work as a local process; choose Groundmail for communication over a hosted endpoint. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Mailtea logoChoose Mailtea when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a local stdio subprocess transport.
Explore Mailtea

Groundmail logoChoose Groundmail when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a remote HTTP/SSE transport.
  • You have the keys it needs: GROUNDMAIL_API_KEY, GROUNDMAIL_API_URL.
Explore Groundmail

Feature & specification comparison

Rows where the two servers differ are marked.

SpecMailtea logoMailteaGroundmail logoGroundmail
CategoryCommunicationCommunication
Quality signal45/100 · Fair58/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Remote HTTP/SSE
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedGROUNDMAIL_API_KEYGROUNDMAIL_API_URL
Verified ownerCommunity listingCommunity listing
GitHub stars00
Directory activity 1 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Mailtea tools

No tool names declared yet. Check the project README from the listing page.

Groundmail tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Mailtea

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "mailtea": {
      "command": "npx",
      "args": [
        "-y",
        "plugins"
      ]
    }
  }
}

Groundmail

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "groundmail": {
      "command": "npx",
      "args": [
        "-y",
        "groundmail-mcp"
      ],
      "env": {
        "GROUNDMAIL_API_KEY": "YOUR_GROUNDMAIL_API_KEY_HERE",
        "GROUNDMAIL_API_URL": "YOUR_GROUNDMAIL_API_URL_HERE"
      }
    }
  }
}

Frequently asked questions

Mailtea is categorized under Communication and uses a local stdio subprocess. Groundmail belongs to Communication and uses a remote HTTP/SSE transport. Pick Mailtea for communication work and Groundmail for communication.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Mailtea has no declared pricing — check the project's own site. Groundmail has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add mailtea and groundmail as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Mailtea has a quality signal of 45/100 (Fair) with 1 views, 0 installs and 0 GitHub stars. Groundmail has 58/100 (Good) with 0 views, 0 installs and 0 GitHub stars.