Smart home and IoT · MCP server
Gx3 cli MCP: MCP server, setup and security
Gx3 cli MCP is an MCP server published on GitHub that lets an AI agent trace Mitsubishi ladder logic and find device accesses and comments. Its repository has 8 stars and its last commit is from October 12, 2026, but it declares no licence.
| Adoption (stars) | 9/40 | |
|---|---|---|
| Maintenance | 30/30 | |
| Framework (licence, registry, official) | 5/30 |
What Gx3 cli MCP does
According to its repository: “Unofficial, read-only analysis of Mitsubishi MELSEC GX Works3 PLC projects: trace ladder logic, find device reads and writes and search device comments.”
The Model Context Protocol (MCP) is a standard plug between an AI agent and an outside service: once the server is connected, its tools show up in the agent, which decides when to call them. Gx3 cli MCP is listed under Smart home and IoT, a category of 34 servers in the directory, where it ranks #29 by stars.
Topics declared by the repository: gx-works3, industrial-automation, ladder-logic, local-first, plc, python.
Installing and connecting Gx3 cli MCP
No package or remote server is declared in the official MCP registry: you install it from source, following the repository README.
It works with any MCP-compatible client (Claude Desktop, Claude Code, Cursor, VS Code, Codex and most recent agents). You add one entry to the client's MCP configuration: server name, start command or URL, environment variables. Project language: Python. Listed systems: Windows.
Security: what to check
Connecting an MCP server means installing software that talks straight to your agent: it runs with your rights and the model trusts its tool descriptions. The risk therefore depends on what it can touch and how far its code can be trusted.
Points found for Gx3 cli MCP:
- No licence: without a licence the code is not legally reusable, even if it is public. Avoid it in a company setting without the author's agreement.
Good practice: grant only the rights needed (least privilege), require human approval for irreversible actions, and run the AI agent security check.
Project activity and maintenance
Created on August 3, 2026, the purinzan/gx3-cli-mcp repository has 8 stars and 1 forks, with 1 open issues. It has more stars than 22% of the servers in the directory. It received changes this month.
Stars measure attention, not quality: a recent, heavily promoted project can collect them fast, while a useful but niche server will have few.
Verdict
Gx3 cli MCP is still a modest project: read its code and compare it with the alternatives before using it.
Strengths
- Active project: recent commit
Limitations
- No licence declared
- Few visible users
- Install from source
Avoid if…
- Company use without the author's agreement
Alternatives
- Ha MCP5.2K ★
- Stack chan1.8K ★
- Bagel399 ★
- Tapo MCP863 ★
- Kiln219 ★
- Bambu Printer MCP233 ★
Learn more
Frequently asked questions
How do I install Gx3 cli MCP?
No package is declared in the MCP registry: clone the purinzan/gx3-cli-mcp repository, follow its README, then declare the start command in your client's MCP configuration.
Is Gx3 cli MCP free?
The code is public but has no declared licence: it is not formally free to reuse.
Is Gx3 cli MCP safe?
Points to watch: no licence. Give it minimum rights and approve sensitive actions.
Is it an official server?
Nothing says so: it is a project published by purinzan on GitHub. Check who maintains it before giving it access.
What are the alternatives to Gx3 cli MCP?
In the same category: Ha MCP, Stack chan, Bagel, and Tapo MCP. Ha MCP and Stack chan score higher on our grid.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score