Atomic Mail vs Inboxmcp
A side-by-side look at the Atomic Mail and Inboxmcp MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
I
InboxmcpCommunicationConnect inboxes to your AI, with built-in progress and optional owner-confirmed outgoing email.33EmergingAuth: not declaredVerdict: choose Atomic Mail for communication work as a local process; choose Inboxmcp for communication. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Atomic Mail 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 | I Inboxmcp | |
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 45/100 · Fair | 33/100 · Emerging |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Freemium |
| Required env vars | None listed | None listed |
| Verified owner | Community listing |
Tools & capabilities
Atomic Mail tools
No tool names declared yet. Check the project README from the listing page.
Inboxmcp 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.
Atomic Mail
{
"mcpServers": {
"atomic-mail": {
"command": "npx",
"args": [
"-y",
"--package=@atomicmail/agent-skill-github",
"atomicmail"
]
}
}
}
Inboxmcp
No confirmed install command for Inboxmcp yet — follow the setup steps linked from its listing page rather than a guessed package name.
Frequently asked questions
Atomic Mail is categorized under Communication and uses a local stdio subprocess. Inboxmcp belongs to Communication and uses an install path we have not confirmed yet. Pick Atomic Mail for communication work and Inboxmcp 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. Inboxmcp has no confirmed install command yet — follow its own setup instructions.
Atomic Mail has no declared pricing — check the project's own site. Inboxmcp is listed as freemium — a free tier with paid plans. 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 atomic-mail and inboxmcp-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Atomic Mail has a quality signal of 45/100 (Fair) with 2 views, 0 installs and 265 GitHub stars. Inboxmcp has 33/100 (Emerging) with 0 views, 0 installs and 0 GitHub stars.