Argon MCP Server

Branch, time-travel, merge and undo your MongoDB. Any driver, real mongod, versioned history underneath. Built for AI agents. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-07-09 · ★ 171 · #69 OF 139 MAINTAINED DEVELOPER TOOLS · VERIFIED 2026-08-25

MIT · Go servers · how we verify → /methodology

01 · Install Argon

Claude Code

claude mcp add argon-lab-argon -- npx -y argonctl

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "argon-lab-argon": {
      "command": "npx",
      "args": [
        "-y",
        "argonctl"
      ]
    }
  }
}

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 argonctl - unscoped; check the name against the project README before installing

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

03 · What Argon can do

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

Latest releases

v2.0.1 · 2026-07-09

npm installer: Windows release assets carry an .exe suffix · npm package: bin entries must exist inside the published tarball · REST read surface, server options, embedded UI, argon console · restructure for…

v2.0.0 · 2026-07-07

Auto-translate README and Wiki · Distributed per-project LSN sequencer · Deterministic WAL replay: physical log entries and branch ancestry · Replay determinism property tests, v1 WAL migration, architecture docs…

v1.0.1 · 2025-07-20

Major Updates · Pure WAL Architecture: Complete removal of legacy system · Clean CLI Interface: No more wal or wal-simple prefixes · Package Publishing Ready: Setup for Homebrew, NPM, and PyPI · Practical Demos…

04 · Who maintains Argon

argon is maintained by argon-lab. It's the only MCP server we track from this author; the repo dates to May 2025.

05 · Facts

repository: github.com/argon-lab/argon
category: developer tools - ranked #69 of 139 actively-maintained developer tools servers as of 2026-08-25.
release cadence: 2 releases in the last 90 days (latest 2026-07-09)
registry: io.github.argon-lab/argon (active, first published 2026-07-09)
packages: npm:argonctl

06 · Argon FAQ

What is Argon?

Branch, time-travel, merge and undo your MongoDB. Any driver, real mongod, versioned history underneath. Built for AI agents. It runs locally over stdio via the published package.

Is Argon still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-09 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Argon?

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

Does Argon 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 Argon

Alternatives to Argon

Maintained developer tools servers if Argon isn't the fit.

Pairs well with

Servers that cover what Argon doesn't - only shown when the pairing reason fits the companion.

More developer tools MCP servers · Pyslang MCP · Control Keel · Fixmap · Loki Mode · Stateark

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