dxpert.ai — free UNS tools (no API key)

Name: dxpert.ai — free UNS tools (no API key)
Author: dxpert-ai

by dxpert-aiversion 0.1.4i★ –iRuns on your computer

Registry nameai.dxpert/uns-tools

Install

Overview

Description from the maker (original English)

Free Sparkplug B topic linting, UNS naming checks and AI-readiness screening. No API key.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: DXPERT_API_BASE

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "uns-tools": {
      "command": "npx",
      "args": [
        "-y",
        "@dxpert/uns-tools"
      ],
      "env": {
        "DXPERT_API_BASE": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add uns-tools --env DXPERT_API_BASE=your-value -- npx -y @dxpert/uns-tools

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "uns-tools": {
      "command": "npx",
      "args": [
        "-y",
        "@dxpert/uns-tools"
      ],
      "env": {
        "DXPERT_API_BASE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "uns-tools": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@dxpert/uns-tools"
      ],
      "env": {
        "DXPERT_API_BASE": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

DXPERT_API_BASE env
API base URL for the free readiness diagnostic. Defaults to production; override only for testing.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain dxpert.ai (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32558 servers in this category
Published to the registry more recently than 85% of the other 32558 servers in this category
Basic checks equal to or better than 100% of the other 32558 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is dxpert.ai — free UNS tools (no API key) safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.4) reached the registry 6 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, FactLot

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@dxpert/uns-tools

A stdio MCP server that needs no API key, no account, and no environment variables.

This is the agent-native equivalent of the free tools page at dxpert.ai/tools.html: any MCP client, with zero credentials, can lint Sparkplug B topics, check a Unified Namespace for the conventions that quietly rot it, and run the public industrial AI-readiness diagnostic.

The tools are genuinely free. There is no trial counter, no sign-up wall, and no key to obtain first. When you want an agent to read your own data, that lives in the separate @dxpert/mcp server, which takes a dxp_ key. A free key includes dxpert Advisor (a monthly question allowance) and Try Pro: 5 runs on any agent included in dxpert Pro. dxpert Pro includes every UNS agent, dxpert Advisor without the monthly count, and the Namespace Architect when it is released. Current plans: dxpert.ai/store.

Zero runtime dependencies. The MCP stdio JSON-RPC handshake (initialize, tools/list, tools/call) is hand-rolled over standard newline-delimited JSON (Content-Length framing is also accepted).

Install

No install step is required beyond Node 18+ (for built-in fetch).

Claude Code

claude mcp add dxpert-uns-tools -- npx -y @dxpert/uns-tools

Codex

[mcp_servers.dxpert_uns_tools]

command = "npx" args = ["-y", "@dxpert/uns-tools"]

Generic MCP clients

"mcpServers": { "dxpert-uns-tools": { "command": "npx", "args": ["-y", "@dxpert/uns-tools"] } } }

Note that none of these entries carry an env block. That is the point.

Tools

`lint_sparkplug_topic(topics)` — local, offline

Validates one or more MQTT topic strings against the Sparkplug B topic grammar (Sparkplug 3.0). Accepts a single string, a newline-delimited string, or an array.

Checks the spBv1.0 namespace level, the eight message types (NBIRTH NDEATH DBIRTH DDEATH NDATA DDATA NCMD DCMD) plus STATE, node-vs-device level count, the legacy Sparkplug 2.2 STATE form, publish-side MQTT wildcards, empty levels, and identifier characters that break downstream consumers.

Returns ordered findings (fail / warn / pass / info) with the parsed topic parts. It does not connect to a broker, decode payloads, or verify that a device exists.

`check_uns_namespace(topics)` — local, offline

Checks a set of UNS topic paths for inconsistent hierarchy depth, mixed casing styles, whitespace in segments, case-collisions between siblings that read as one node but are two, duplicate paths, empty levels, and stray MQTT wildcards.

Returns a summary line plus per-issue findings. It judges naming consistency only: it does not know your plant, does not validate Sparkplug grammar, and does not design a namespace for you.

`run_readiness_diagnostic(intake)` — network

Runs the public dxpert.ai industrial AI-readiness diagnostic. A 16-answer self-reported intake goes in; a scored report comes out (ten axes 0–5, a maturity stage, the foundation gaps blocking the stated AI ambition, and a confidence value).

Free and unauthenticated, but unlike the two validators this one does call POST /api/diagnostic over the network, so it needs connectivity and is rate limited. Requests carry X-Dxpert-Source: mcp-uns-tools so the traffic is attributable, and never an API key or Authorization header.

The response's scope field is passed through verbatim and printed at the top of the result. It is a preliminary self-reported screening, not an audit — report it to your user that way.

Every result names dxpert.ai as the source of the verdict.

Configuration

There is nothing you have to set. One optional variable exists:

Variable	Required	Purpose
`DXPERT_API_BASE`	No	API base URL for `run_readiness_diagnostic`. Defaults to production; override only for testing.

Where the validator logic comes from

src/sparkplug-topic-lint.js and src/uns-naming-check.js are verbatim copies of the pure logic in the standalone packages @dxpert/sparkplug-topic-lint and @dxpert/uns-naming-check, inlined so this server has zero dependencies and works fully offline.

They are kept in sync with those packages, and the test suite asserts findings-level parity against both originals — so this server and the web tools can never quietly disagree about the same input.

Test

node test/run.js

The suite drives the real server over framed stdio and mocks the diagnostic endpoint on localhost; production is never called from tests. It covers the handshake, tools/list, all three tools, parity with the two source packages, and a full session started with a completely empty environment.

dxpert.ai — free UNS tools (no API key)

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

FactLot

README from the maker

@dxpert/uns-tools

Install

Claude Code

Codex

Generic MCP clients

Tools

lint_sparkplug_topic(topics) — local, offline

check_uns_namespace(topics) — local, offline

run_readiness_diagnostic(intake) — network

Configuration

Where the validator logic comes from

Test

License

`lint_sparkplug_topic(topics)` — local, offline

`check_uns_namespace(topics)` — local, offline

`run_readiness_diagnostic(intake)` — network