Gmail MCP vs Mailbox
A side-by-side look at the Gmail MCP and Mailbox MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Gmail MCP for communication work as a local process; choose Mailbox for communication. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Gmail MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: OAuth 2.0.
- You have the keys it needs:
GMAIL_MCP_RECIPIENT_PAIRING.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | M Mailbox | |
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 57/100 · Good | 37/100 · Fair |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | OAuth 2.0 | Not declared |
| Pricing | Free | Not declared |
| Required env vars | GMAIL_MCP_RECIPIENT_PAIRING | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 15 | — |
| Directory activity | 2 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Gmail MCP | View Mailbox |
Tools & capabilities
Gmail MCP tools
No tool names declared yet. Check the project README from the listing page.
Mailbox 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.
Gmail MCP
{
"mcpServers": {
"klodr-gmail-mcp": {
"command": "npx",
"args": [
"-y",
"@klodr/gmail-mcp"
],
"env": {
"GMAIL_MCP_RECIPIENT_PAIRING": "YOUR_GMAIL_MCP_RECIPIENT_PAIRING_HERE"
}
}
}
}
Mailbox
No confirmed install command for Mailbox yet — follow the setup steps linked from its listing page rather than a guessed package name.