Mail Index MCP Server

mail-index downloads a preview of your whole inbox to your machine, then smartly fetches the full text of the messages that matter as you use it. That local index lets your AI agent run true summarization and recall over your entire mailbox - instead of being trapped behind Gmail's search bar.

People connecting email tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-21 · ★ 4 · #20 OF 75 MAINTAINED EMAIL · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Mail Index

Claude Code

claude mcp add alunsoldantarctica-mail-index -- npx -y mail-index

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "alunsoldantarctica-mail-index": {
      "command": "npx",
      "args": [
        "-y",
        "mail-index"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package mail-index - unscoped; check the name against the project README before installing

registry namespace io.github.alunsoldantarctica is GitHub-verified and matches the repo owner

03 · What Mail Index can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.5.1 · 2026-08-05

v1.5.0 · 2026-08-05

v1.4.0 · 2026-06-25

04 · Who maintains Mail Index

mail-index is maintained by alunsoldantarctica. It's the only MCP server we track from this author; the repo dates to Jun 2026.

05 · Facts

repository: github.com/alunsoldantarctica/mail-index
category: email - ranked #20 of 75 actively-maintained email servers as of 2026-08-25.
release cadence: 9 releases in the last 90 days (latest 2026-08-05)
registry: io.github.alunsoldantarctica/mail-index (active, first published 2026-06-17)
packages: npm:mail-index

06 · Mail Index FAQ

What is Mail Index?

Is Mail Index still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-21 and it shipped 9 releases in the last 90 days. We re-verify nightly.

How do I install Mail Index?

Run `npx -y mail-index`. You can also paste the ready-made client config above.

Does Mail Index run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Mail Index

Alternatives to Mail Index

Maintained email servers if Mail Index isn't the fit.

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