Server Everything vs SendLetter
A side-by-side look at the Server Everything and SendLetter MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Server Everything for other tools and integrations work as a local process; choose SendLetter for delivery. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Server Everything when
- You need dedicated capabilities in the Other Tools and Integrations domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
Choose SendLetter when
- You need dedicated capabilities in the Delivery domain.
- You have the keys it needs:
SENDLETTER_API_KEY, SENDLETTER_WEBHOOK_SECRET.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Other Tools and Integrations | Delivery |
| Quality signal | 55/100 · Good | 31/100 · Emerging |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | SENDLETTER_API_KEYSENDLETTER_WEBHOOK_SECRET |
| Verified owner | Community listing | Community listing |
| GitHub stars | 91,405 | 0 |
| Directory activity | 9 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | Not listed | Not listed |
| Full listing | View Server Everything | View SendLetter |
Tools & capabilities
Server Everything tools
No tool names declared yet. Check the project README from the listing page.
SendLetter 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.
Server Everything
{
"mcpServers": {
"modelcontextprotocol-server-everything": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-everything"
]
}
}
}
SendLetter
No confirmed install command for SendLetter yet — follow the setup steps linked from its listing page rather than a guessed package name.