Groundmail vs Lumail
A side-by-side look at the Groundmail and Lumail MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Groundmail for communication work over a hosted endpoint; choose Lumail for communication as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose 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.
Choose Lumail when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 58/100 · Good | 43/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | GROUNDMAIL_API_KEYGROUNDMAIL_API_URL | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 2 |
| Directory activity | 0 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Groundmail | View Lumail |
Tools & capabilities
Groundmail tools
No tool names declared yet. Check the project README from the listing page.
Lumail 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.
Groundmail
{
"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"
}
}
}
}
Lumail
{
"mcpServers": {
"lumail": {
"command": "npx",
"args": [
"-y",
"lumail"
]
}
}
}
Frequently asked questions
Groundmail is categorized under Communication and uses a remote HTTP/SSE transport. Lumail belongs to Communication and uses a local stdio subprocess. Pick Groundmail for communication work and Lumail 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.
Groundmail has no declared pricing — check the project's own site. Lumail 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 groundmail and lumail as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Groundmail has a quality signal of 58/100 (Good) with 0 views, 0 installs and 0 GitHub stars. Lumail has 43/100 (Fair) with 2 views, 0 installs and 2 GitHub stars.