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MCP live MCP 2025-11-25 streamable-http

OPC UA Modeler

io.github.node-opcua/node-opcua-modeler-mcp-server

OPC UA companion spec types, namespace dependencies, and engineering units for AI agents

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Uptime
100.0%
5 direct probes · 30d
Response
98ms
last probe
Tools
12
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://api.opcua-modeler.sterfive.io/api/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
12 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
12 items in total; 3 or more earns these points.
pass Describes itself 10/10
88 characters; more than 30 earns these points.

Tools · 12

resolve_dependencies

Given one or more companion spec namespace aliases, returns the full resolved dependency list that MUST go in the YAML `namespaces:` section. Always call this before generating the namespaces block.

list_namespaces

List all well-known OPC UA companion spec namespace aliases with their full names, URIs, and dependencies. Use this to discover what namespaces are available.

list_types

List ALL ObjectTypes, VariableTypes, and InterfaceTypes defined in a specific companion spec namespace. ALWAYS call this before using any type from a namespace — NEVER guess type names.

get_type_details

Get detailed information about a specific type: its components, properties, methods, interfaces, and optional members. Use this to understand a type's structure before creating instances or subtypes. …

search_types

Search for types across ALL companion specs by keyword. Use this when you don't know which namespace defines a type. Returns matching types with their namespace alias.

find_reusable_block

Find reusable Interfaces / AddIns by capability — pass a member name or keyword (e.g. "SerialNumber", "DeviceHealth", "Location") and get the standard blocks that already expose it. PREFER applying/co…

find_engineering_unit

Find the official UNECE Rec. 20 engineering unit symbol for a given description. ALWAYS call this before using any engineering unit — NEVER guess unit symbols.

get_dsl_reference

Get the grammar reference for the OPC UA modeler YAML DSL: file header, top-level sections, name-prefix conventions, minimal examples, and common mistakes. Call this FIRST before writing any YAML mode…

opcua_model_validate

Validate an OPC UA YAML model for correctness. Returns diagnostics with severity (error/warning/info), codes, messages, and line numbers. Works without an API key (limited to 50 calls/day). ALWAYS val…

opcua_model_generate

Generate OPC UA NodeSet2.xml and the symbols CSV from a YAML model. Requires an API key (set OPCUA_MODELER_API_KEY env var). NodeIds stay stable only if each regeneration passes back the symbols of th…

opcua_model_reverse

Reverse-engineer a NodeSet2.xml file back into the YAML DSL format. Requires an API key (set OPCUA_MODELER_API_KEY env var). Optionally specify the target namespace URI to extract.

opcua_model_create

Generate an OPC UA YAML model from a natural language description using AI. Requires an API key (set OPCUA_MODELER_API_KEY env var). The AI will auto-detect relevant companion specs, generate a valida…

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "opc_ua_modeler": {
      "url": "https://api.opcua-modeler.sterfive.io/api/mcp",
      "transport": "streamable-http"
    }
  }
}