MailFathom MCP Server

by fathomiseio.github.fathomise/mailfathomv0.7.0

Security-first, self-hosted email archive with search, cited answers, and sending for AI agents.

16remoteofficial registry

context tax

not measurable

security

pending

cold start

hosted

freshness

pending

Our reading of MailFathom, from the data

MailFathom is a email MCP server from fathomise, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

With 16 GitHub stars it ranks #64 of 932 email servers we index.

It runs as a hosted endpoint, so there is nothing to install.

Install MailFathom MCP server

claude mcp add --transport http mailfathom-fathomise https://{mailfathom_host}/mcp

{
  "mcpServers": {
    "mailfathom-fathomise": {
      "url": "https://{mailfathom_host}/mcp"
    }
  }
}

{
  "mcpServers": {
    "mailfathom-fathomise": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://{mailfathom_host}/mcp"
      ]
    }
  }
}

Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.

{
  "servers": {
    "mailfathom-fathomise": {
      "type": "http",
      "url": "https://{mailfathom_host}/mcp"
    }
  }
}

{
  "mcpServers": {
    "mailfathom-fathomise": {
      "serverUrl": "https://{mailfathom_host}/mcp"
    }
  }
}

Remote endpoints

streamable-httphttps://{mailfathom_host}/mcp

Freshness

Not enough public signals yet to judge maintenance.

Last commit (default branch)
2026-10-18 · today · GitHub
Latest release
2026-10-13 · 5d ago · GitHub · v0.8.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-12 · 6d ago · official registry · v0.7.0

How it compares in Email

Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
MailFathom (this)	16	—	not measured	—	hosted
Inbox Zero	12,649	—	not measured	Active	hosted
Useplunk	5,524	—	not measured	—	local
Google Workspace	3,370	—	not measured	Active	—
OpenOSINT	1,776	—	not measured	Active	local
emailmd	1,382	3	954	Active	local + hosted

All email MCP servers

FAQ

›How do I install the MailFathom MCP server in Claude Code?

Run: claude mcp add --transport http mailfathom-fathomise https://{mailfathom_host}/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does MailFathom require an API key?

No required environment variables are declared in its published metadata.

›Can I use MailFathom as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is MailFathom in the official MCP registry?

Yes, as io.github.fathomise/mailfathom.

Sources and method

Official MCP Registry entry: updated 2026-10-12
GitHub repository: fetched 2026-10-19
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.