Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Beschreibung vom Entwickler (englisches Original)
Connect AI assistants to industrial OPC UA: browse, read, history, subscriptions, events and alarms.
Diese drei werden nie zu einer Punktzahl zusammengefasst: Meinungen, Messungen und Beliebtheit sind verschiedene Dinge.
Für diesen Server haben wir noch keine Zusammenfassung in einfacher Sprache geschrieben. Unten stehen die Fakten, die wir aus der Registry gelesen haben.
Wähle die KI-App, die du nutzt, und kopiere die Einstellungen.
OPCUA_SERVER_URL, OPCUA_PYTHON_BACKEND, OPCUA_SECURITY_POLICY, OPCUA_SECURITY_MODE, OPCUA_CLIENT_CERT, OPCUA_CLIENT_KEY, OPCUA_APPLICATION_URI, OPCUA_SERVER_CERT, OPCUA_SERVER_TRUST_STORE, OPCUA_SERVER_APPLICATION_URI, OPCUA_USERNAME, OPCUA_PASSWORD, OPCUA_USER_CERT, OPCUA_USER_KEY, OPCUA_PROFILE, OPCUA_POLICY_FILE, OPCUA_ALLOWED_TOOLS, OPCUA_ALLOWED_WRITE_NODES, OPCUA_ALLOWED_METHODS, OPCUA_ALLOW_ACKNOWLEDGE_ALARMS, OPCUA_ALLOW_INSECURE_CONTROL, OPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL, OPCUA_ALLOW_OUT_OF_RANGE_WRITES, OPCUA_AUDIT_FILE, OPCUA_AUDIT_FSYNC, OPCUA_AUDIT_CHAIN, OPCUA_AUDIT_CHAIN_KEY_FILE, OPCUA_OPERATOR_ID, OPCUA_RECONNECT_INITIAL_DELAY_MS, OPCUA_RECONNECT_MAX_DELAY_MS, OPCUA_RECONNECT_MAX_RETRY, OPCUA_SESSION_TIMEOUT_MSAls geheim markierte Werte sind Schlüssel zu deinem Konto. Gib sie nie weiter und füge sie nie in einen Chat ein.
Du brauchst
Welche App nutzt du?
Wähle oben deine App. Wir merken sie uns, damit der Button beim nächsten Mal „In … installieren“ anzeigt.
Öffne Claude Desktop → Settings → Developer → Edit Config und füge dies in claude_desktop_config.json ein
{
"mcpServers": {
"opcua": {
"command": "npx",
"args": [
"-y",
"opcua-mcp-server"
],
"env": {
"OPCUA_SERVER_URL": "your-value",
"OPCUA_PYTHON_BACKEND": "your-value",
"OPCUA_SECURITY_POLICY": "your-value",
"OPCUA_SECURITY_MODE": "your-value",
"OPCUA_CLIENT_CERT": "your-value",
"OPCUA_CLIENT_KEY": "your-value",
"OPCUA_APPLICATION_URI": "your-value",
"OPCUA_SERVER_CERT": "your-value",
"OPCUA_SERVER_TRUST_STORE": "your-value",
"OPCUA_SERVER_APPLICATION_URI": "your-value",
"OPCUA_USERNAME": "your-value",
"OPCUA_PASSWORD": "your-value",
"OPCUA_USER_CERT": "your-value",
"OPCUA_USER_KEY": "your-value",
"OPCUA_PROFILE": "your-value",
"OPCUA_POLICY_FILE": "your-value",
"OPCUA_ALLOWED_TOOLS": "your-value",
"OPCUA_ALLOWED_WRITE_NODES": "your-value",
"OPCUA_ALLOWED_METHODS": "your-value",
"OPCUA_ALLOW_ACKNOWLEDGE_ALARMS": "your-value",
"OPCUA_ALLOW_INSECURE_CONTROL": "your-value",
"OPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL": "your-value",
"OPCUA_ALLOW_OUT_OF_RANGE_WRITES": "your-value",
"OPCUA_AUDIT_FILE": "your-value",
"OPCUA_AUDIT_FSYNC": "your-value",
"OPCUA_AUDIT_CHAIN": "your-value",
"OPCUA_AUDIT_CHAIN_KEY_FILE": "your-value",
"OPCUA_OPERATOR_ID": "your-value",
"OPCUA_RECONNECT_INITIAL_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_RETRY": "your-value",
"OPCUA_SESSION_TIMEOUT_MS": "your-value"
}
}
}
}Führe das in deinem Terminal aus
claude mcp add opcua --env OPCUA_SERVER_URL=your-value --env OPCUA_PYTHON_BACKEND=your-value --env OPCUA_SECURITY_POLICY=your-value --env OPCUA_SECURITY_MODE=your-value --env OPCUA_CLIENT_CERT=your-value --env OPCUA_CLIENT_KEY=your-value --env OPCUA_APPLICATION_URI=your-value --env OPCUA_SERVER_CERT=your-value --env OPCUA_SERVER_TRUST_STORE=your-value --env OPCUA_SERVER_APPLICATION_URI=your-value --env OPCUA_USERNAME=your-value --env OPCUA_PASSWORD=your-value --env OPCUA_USER_CERT=your-value --env OPCUA_USER_KEY=your-value --env OPCUA_PROFILE=your-value --env OPCUA_POLICY_FILE=your-value --env OPCUA_ALLOWED_TOOLS=your-value --env OPCUA_ALLOWED_WRITE_NODES=your-value --env OPCUA_ALLOWED_METHODS=your-value --env OPCUA_ALLOW_ACKNOWLEDGE_ALARMS=your-value --env OPCUA_ALLOW_INSECURE_CONTROL=your-value --env OPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL=your-value --env OPCUA_ALLOW_OUT_OF_RANGE_WRITES=your-value --env OPCUA_AUDIT_FILE=your-value --env OPCUA_AUDIT_FSYNC=your-value --env OPCUA_AUDIT_CHAIN=your-value --env OPCUA_AUDIT_CHAIN_KEY_FILE=your-value --env OPCUA_OPERATOR_ID=your-value --env OPCUA_RECONNECT_INITIAL_DELAY_MS=your-value --env OPCUA_RECONNECT_MAX_DELAY_MS=your-value --env OPCUA_RECONNECT_MAX_RETRY=your-value --env OPCUA_SESSION_TIMEOUT_MS=your-value -- npx -y opcua-mcp-serverTrag die leeren Werte ein, bevor du ihn startest.
In .cursor/mcp.json in deinem Projekt oder in ~/.cursor/mcp.json einfügen
{
"mcpServers": {
"opcua": {
"command": "npx",
"args": [
"-y",
"opcua-mcp-server"
],
"env": {
"OPCUA_SERVER_URL": "your-value",
"OPCUA_PYTHON_BACKEND": "your-value",
"OPCUA_SECURITY_POLICY": "your-value",
"OPCUA_SECURITY_MODE": "your-value",
"OPCUA_CLIENT_CERT": "your-value",
"OPCUA_CLIENT_KEY": "your-value",
"OPCUA_APPLICATION_URI": "your-value",
"OPCUA_SERVER_CERT": "your-value",
"OPCUA_SERVER_TRUST_STORE": "your-value",
"OPCUA_SERVER_APPLICATION_URI": "your-value",
"OPCUA_USERNAME": "your-value",
"OPCUA_PASSWORD": "your-value",
"OPCUA_USER_CERT": "your-value",
"OPCUA_USER_KEY": "your-value",
"OPCUA_PROFILE": "your-value",
"OPCUA_POLICY_FILE": "your-value",
"OPCUA_ALLOWED_TOOLS": "your-value",
"OPCUA_ALLOWED_WRITE_NODES": "your-value",
"OPCUA_ALLOWED_METHODS": "your-value",
"OPCUA_ALLOW_ACKNOWLEDGE_ALARMS": "your-value",
"OPCUA_ALLOW_INSECURE_CONTROL": "your-value",
"OPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL": "your-value",
"OPCUA_ALLOW_OUT_OF_RANGE_WRITES": "your-value",
"OPCUA_AUDIT_FILE": "your-value",
"OPCUA_AUDIT_FSYNC": "your-value",
"OPCUA_AUDIT_CHAIN": "your-value",
"OPCUA_AUDIT_CHAIN_KEY_FILE": "your-value",
"OPCUA_OPERATOR_ID": "your-value",
"OPCUA_RECONNECT_INITIAL_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_RETRY": "your-value",
"OPCUA_SESSION_TIMEOUT_MS": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
In .vscode/mcp.json in deinem Projekt einfügen
{
"servers": {
"opcua": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"opcua-mcp-server"
],
"env": {
"OPCUA_SERVER_URL": "your-value",
"OPCUA_PYTHON_BACKEND": "your-value",
"OPCUA_SECURITY_POLICY": "your-value",
"OPCUA_SECURITY_MODE": "your-value",
"OPCUA_CLIENT_CERT": "your-value",
"OPCUA_CLIENT_KEY": "your-value",
"OPCUA_APPLICATION_URI": "your-value",
"OPCUA_SERVER_CERT": "your-value",
"OPCUA_SERVER_TRUST_STORE": "your-value",
"OPCUA_SERVER_APPLICATION_URI": "your-value",
"OPCUA_USERNAME": "your-value",
"OPCUA_PASSWORD": "your-value",
"OPCUA_USER_CERT": "your-value",
"OPCUA_USER_KEY": "your-value",
"OPCUA_PROFILE": "your-value",
"OPCUA_POLICY_FILE": "your-value",
"OPCUA_ALLOWED_TOOLS": "your-value",
"OPCUA_ALLOWED_WRITE_NODES": "your-value",
"OPCUA_ALLOWED_METHODS": "your-value",
"OPCUA_ALLOW_ACKNOWLEDGE_ALARMS": "your-value",
"OPCUA_ALLOW_INSECURE_CONTROL": "your-value",
"OPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL": "your-value",
"OPCUA_ALLOW_OUT_OF_RANGE_WRITES": "your-value",
"OPCUA_AUDIT_FILE": "your-value",
"OPCUA_AUDIT_FSYNC": "your-value",
"OPCUA_AUDIT_CHAIN": "your-value",
"OPCUA_AUDIT_CHAIN_KEY_FILE": "your-value",
"OPCUA_OPERATOR_ID": "your-value",
"OPCUA_RECONNECT_INITIAL_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_DELAY_MS": "your-value",
"OPCUA_RECONNECT_MAX_RETRY": "your-value",
"OPCUA_SESSION_TIMEOUT_MS": "your-value"
}
}
}
}Dein Browser fragt, ob er die App öffnen darf, dann zeigt die App die Einstellungen und bittet dich um Bestätigung. Schlüsselwerte bleiben leer, damit du sie selbst einträgst.
Dieser Server läuft auf deinem Computer, und ChatGPT kann sich nur mit Servern im Internet verbinden. Wähle eine andere App.
Deine Auswahl bleibt in einem Cookie auf diesem Gerät; kein Konto nötig.
OPCUA_PYTHON_BACKEND envOPCUA_SECURITY_POLICY envOPCUA_SECURITY_MODE envOPCUA_CLIENT_CERT envOPCUA_APPLICATION_URI envOPCUA_SERVER_CERT envOPCUA_SERVER_TRUST_STORE envOPCUA_SERVER_APPLICATION_URI envOPCUA_USERNAME envOPCUA_USER_CERT envOPCUA_POLICY_FILE envOPCUA_ALLOWED_TOOLS envOPCUA_ALLOWED_WRITE_NODES envOPCUA_ALLOWED_METHODS envOPCUA_ALLOW_ACKNOWLEDGE_ALARMS envOPCUA_ALLOW_INSECURE_CONTROL envOPCUA_ALLOW_UNVERIFIED_SERVER_CONTROL envOPCUA_ALLOW_OUT_OF_RANGE_WRITES envOPCUA_AUDIT_FILE envOPCUA_AUDIT_FSYNC envOPCUA_AUDIT_CHAIN envOPCUA_OPERATOR_ID envOPCUA_RECONNECT_INITIAL_DELAY_MS envOPCUA_RECONNECT_MAX_DELAY_MS envOPCUA_RECONNECT_MAX_RETRY envOPCUA_SESSION_TIMEOUT_MS envDiese Einstellungen werden aus dem Registry-Eintrag des Entwicklers erzeugt. Wenn in der README etwas anderes steht, folge der README.
Läuft auf deinem Computer; die Tool-Liste erscheint nach der Installation in deiner KI-App.
Wir prüfen Informationen, die jeder sehen kann; den Code haben wir nicht gelesen. Checks, die nicht zutreffen, werden nicht mitgezählt. · Geprüft am 7. Nov. 2026
Der Herausgeber (midhunxavier) ist nicht der Repo-Inhaber (IndustriAgents); vielleicht hat jemand anderes ihn eingetragen
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieses Repo haben wir noch nicht von GitHub gelesen
Dieser Server läuft auf deinem Computer; es gibt keinen Endpunkt im Internet
Läuft auf deinem Computer und nutzt stattdessen lokale Einstellungen
Läuft auf deinem Computer; Tool-Listen können wir nur von Endpunkten im Internet lesen
Verglichen mit allen aktiven Servern dieser Kategorie in der Registry. Sterne zählen nur, wenn dem Herausgeber das Repo gehört.
Er hat 0 von 1 zutreffenden Basischecks bestanden. Den Code haben wir nicht gelesen. Bevor du einen Schlüssel oder Token hinzufügst, sieh nach, welche Zugriffe der Server verlangt, und nutze einen Schlüssel, der nur die Berechtigungen hat, die du brauchst.
Das musst du eintragen: OPCUA_SERVER_URL, OPCUA_CLIENT_KEY, OPCUA_PASSWORD, OPCUA_USER_KEY, OPCUA_PROFILE, OPCUA_AUDIT_CHAIN_KEY_FILE
Er läuft auf deinem Computer. Deine KI-App startet ihn bei Bedarf, und die Daten laufen nicht über die Server des Entwicklers (außer der Server ruft selbst einen Onlinedienst auf).
Das GitHub-Repo wurde zuletzt – geändert, und die neueste Version (0.6.0) kam vorgestern in die Registry.
Apps, die MCP unterstützen, etwa Claude Desktop, Claude Code, Cursor und VS Code. Außerdem brauchst du Node.js auf deinem Computer.
In derselben Kategorie: Spec Driven Development, Remote Desktop Commander, Master CSS
Server derselben Kategorie von anderen Entwicklern, sortiert nach Sternen.
So liest du eine Karte:★ GitHub-SterneiDrei Säulen: Bewertungen · Checks · NutzungiAktualisiert = neueste Version in der Registry veröffentlichti
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Inspect Master CSS classes, generated CSS, and project stylesheets from your AI client.
Unverändert aus dem Repo des Entwicklers übernommen. PopNx MCP hat den Inhalt weder geprüft noch empfiehlt es ihn. HTML, Bilder und Skripte wurden entfernt. Links führen von dieser Website weg.
Let Claude, Codex, Gemini and any other MCP agent read sensors, browse the plant and — only when you allow it — control equipment on any OPC UA server.
[▶ Try it without hardware](#try-it-without-a-plant) — a simulated plant ships in this repository
Quick start · Connect your agent · Tools · Production · Docs · Contributing
Official MCP Registry · Glama · HardwareMCP
Every tool call and value above is a real response from the bundled simulator, recorded through the Python bridge under the read-only observe profile; the question and answer text are scripted. Rebuild it with scripts/readme_demo.py.
This project is a bridge between an AI agent and an OPC UA server. OPC UA is the protocol used to expose industrial equipment and its data; MCP (Model Context Protocol) lets an agent call tools to work with that data. The bridge runs on your computer and connects to an existing OPC UA server, or to a local simulator for a first test.
Your MCP client starts the bridge as a local stdio process: it exchanges MCP messages over standard input and output. One process connects one client context to one OPC UA endpoint. Use a separate process for each endpoint. Remote MCP and shared multi-client operation are gated by the identity and isolation RFC.
operator profile also requires allowlisted targets, and every control call is audited..mcpb bundle with nothing else to set up.flowchart LR
A["AI agent (Claude, Codex, Gemini, Cursor…)"] -->|MCP over stdio| B["OPC UA MCP Server (Python or Node)"] B -->|OPC UA| C["OPC UA server (PLC / SCADA / historian)"]
Follow these steps in order: choose an installation, start or identify an OPC UA server, configure your MCP client, then check the connection. You need an MCP client such as one of the agents listed below.
Choose one runtime; you do not need both. The package routes fetch the server on demand, so you do not need to clone this repository to use an existing OPC UA server.
| Route | Prerequisites | Command your MCP client launches |
|---|---|---|
| Node package | Node.js 22.13+, including npm and npx | npx -y opcua-mcp-server |
| Python package | Python 3.10+ and uv (which supplies uvx) | uvx opcua-mcp-server |
| Claude Desktop bundle | Claude Desktop; no separate Node or Python installation | Install the .mcpb file as described below |
| Single-file executable | Download for your platform; no Node or Python installation | Use its absolute path as the client command; see installation instructions |
For a package route, check that it can run from your terminal. Run the command for your chosen runtime:
# Node
npx -y opcua-mcp-server --version
uvx opcua-mcp-server --version
These commands print a version and exit. In normal use, your MCP client launches the server without --version; you do not also start the bridge in a separate terminal. A bridge started by itself waits for MCP messages, rather than showing an interactive prompt or a web page.
For an existing server, get its endpoint URL, including any path, from its administrator (for example opc.tcp://192.168.0.10:4840). The bridge reads it from OPCUA_SERVER_URL, which you set in your MCP client's configuration in step 3. If unset, the default is opc.tcp://localhost:4840.
The default profile is observe (read-only), and the default OPC UA connection is unencrypted and anonymous. Use those defaults for the local mock. For real equipment, prepare the security configuration before connecting.
If you do not have an OPC UA server, start the bundled simulated plant. This optional route needs Git, Python 3.10+ and uv, even if you chose the Node bridge. Run these commands in a terminal:
git clone https://github.com/IndustriAgents/OPCUA-MCP.git
cd OPCUA-MCP uv sync --all-packages uv run --no-sync opcua-mock-server
Wait for Server is running and ready for connections, then leave this terminal running. The mock listens on port 4840; use opc.tcp://localhost:4840/freeopcua/server/ as your endpoint. Stop it with Ctrl-C when finished. If the port is busy, choose another port with uv run --no-sync opcua-mock-server --endpoint opc.tcp://127.0.0.1:14840/freeopcua/server/ and use that URL in your client configuration.
The plant supports browsing, sensor reads, data-change subscriptions, raw value history, plain events and event history. It also has writable actuators and methods, subject to the bridge's control policy. It does not implement processed aggregates or Alarms & Conditions: its plain alarm events cannot be listed as retained conditions, acknowledged or acted on with alarm-action tools. Use the separate mocks for those operations:
| Mock | Endpoint | Coverage |
|---|---|---|
| Plant | opc.tcp://localhost:4840/freeopcua/server/ | Sensors, actuators, methods, raw history, subscriptions and plain events |
| Aggregates | opc.tcp://localhost:4841/UA/Aggregate | Processed history, such as average buckets |
| Alarms | opc.tcp://localhost:4842/UA/Alarms | Active conditions and acknowledgement |
The separate mocks need Node and npm; their READMEs give installation and startup commands. The MCP Inspector walkthrough has more examples, and the compatibility matrix records tested coverage.
Pick one client below. The examples use the local plant endpoint from step 2; replace opc.tcp://localhost:4840/freeopcua/server/ with your endpoint if needed. For a secure connection, add the settings from Going to production to the same env block (or the bundle's settings fields).
To use Python in a JSON configuration, set "command": "uvx" and "args": ["opcua-mcp-server"]. In a CLI registration command, replace npx -y opcua-mcp-server with uvx opcua-mcp-server. In TOML, use command = "uvx" and args = ["opcua-mcp-server"].
Claude Desktop
Easiest — the bundle. Download opcua-mcp-server- .mcpb from the latest release, drag it into Settings → Extensions, and fill in OPC UA endpoint. No Node, no Python, no JSON.
Or let the server write the config (needs Node or Python):
npm install -g opcua-mcp-server # or: uv tool install opcua-mcp-server
opcua-mcp-server --install claude-desktop --url opc.tcp://localhost:4840/freeopcua/server/ --dry-run
It checks the config with the server's own startup validation and writes absolute paths, because Claude Desktop does not inherit your shell's PATH. The profile defaults to read-only; encryption, a pinned server certificate, a control profile, a policy file and an audit file are all flags, and passwords are never taken as flags. Check the preview, then repeat the command without --dry-run to write the configuration and restart Claude Desktop. Every flag and safety rule, editing claude_desktop_config.json by hand, and fixing a server that fails to start: docs/install.md.
Claude Code
claude mcp add opcua -e OPCUA_SERVER_URL=opc.tcp://localhost:4840/freeopcua/server/ -- npx -y opcua-mcp-server
Add --scope project to share it with your team through .mcp.json.
OpenAI Codex
codex mcp add opcua --env OPCUA_SERVER_URL=opc.tcp://localhost:4840/freeopcua/server/ -- npx -y opcua-mcp-server
Or add it to ~/.codex/config.toml:
[mcp_servers.opcua]
command = "npx" args = ["-y", "opcua-mcp-server"] env = { OPCUA_SERVER_URL = "opc.tcp://localhost:4840/freeopcua/server/" }
Or let the server write that entry, with the same checks as for Claude Desktop: opcua-mcp-server --install codex --url opc.tcp://localhost:4840/freeopcua/server/ --dry-run. This installer command requires a permanent package installation first: npm install -g opcua-mcp-server or uv tool install opcua-mcp-server. Check the preview and repeat without --dry-run to write it.
Gemini CLI
Add to ~/.gemini/settings.json, or .gemini/settings.json in a project:
{
"mcpServers": { "opcua": { "command": "npx", "args": ["-y", "opcua-mcp-server"], "env": { "OPCUA_SERVER_URL": "opc.tcp://localhost:4840/freeopcua/server/" } } } }
Google Antigravity
In the agent panel, open ⋯ → MCP Servers → Manage MCP Servers → View raw config, add the entry below to mcp_config.json, and restart Antigravity:
{
"mcpServers": { "opcua": { "command": "npx", "args": ["-y", "opcua-mcp-server"], "env": { "OPCUA_SERVER_URL": "opc.tcp://localhost:4840/freeopcua/server/" } } } }
Cursor
Add to ~/.cursor/mcp.json, or .cursor/mcp.json in a project:
{
"mcpServers": { "opcua": { "command": "npx", "args": ["-y", "opcua-mcp-server"], "env": { "OPCUA_SERVER_URL": "opc.tcp://localhost:4840/freeopcua/server/" } } } }
VS Code (GitHub Copilot)
Add to .vscode/mcp.json — note the top-level key is servers:
`
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