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OPC UA Modeler

By node-opcuaAll Sterfive servers

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

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First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.

3
Directories
2 via MCP Toplist
12
Tools
From an anonymous probe
-
ToolBench grade
Not graded by Arcade
2
GitHub stars
From MCP Toplist

Tools

ToolDescriptionBehaviour
find_engineering_unitFind the official UNECE Rec. 20 engineering unit symbol for a given description. ALWAYS call this before using any engineering unit — NEVER guess unit symbols.Read-only
find_reusable_blockFind 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/composing an existing block over redefining its members inline. Interfaces are applied with `interfaces:`; addins (types with a DefaultInstanceBrowseName) are composed with `addIns:`. A single property → use the Interface; a whole named sub-object → use the AddIn.Read-only
get_dsl_referenceGet 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 model by hand. Works without an API key.Read-only
get_type_detailsGet 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. `specRef`, on the type and on a member, is the link to the section of the specification that defines it: cite it.Read-only
list_namespacesList all well-known OPC UA companion spec namespace aliases with their full names, URIs, and dependencies. Use this to discover what namespaces are available.Read-only
list_typesList 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.Read-only
opcua_model_createGenerate 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 validated model with documentation, and auto-correct validation errors.Read-only
opcua_model_generateGenerate OPC UA NodeSet2.xml and Symbols.CSV from a YAML model. Requires an API key (set OPCUA_MODELER_API_KEY env var). Returns base64-encoded artifacts if the model is valid, or diagnostics if validation fails. Optionally set include_docs=true to also generate markdown documentation.Read-only
opcua_model_reverseReverse-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.Read-only
opcua_model_validateValidate 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 validate before generating.Read-only
resolve_dependenciesGiven 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.Read-only
search_typesSearch 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.Read-only

Directory listings

DirectoryListingTierFirst seen
Official MCP RegistryOPC UA Modeler-2 Oct 2026
GlamaListed there according to MCP Toplist’s dataset; not collected by InvokeRank.
PulseMCPListed there according to MCP Toplist’s dataset; not collected by InvokeRank.
OPC UA Modeler MCP server | InvokeRank