i3X-MCP-Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| I3X_TOKEN | No | Required when `I3X_AUTH_SCHEME` is `bearer` or `apikey`. | |
| I3X_BASE_URL | No | Optional pre-set baseUrl. If unset, use the `connect` tool from chat. | |
| I3X_AUTH_SCHEME | No | `none`, `bearer`, or `apikey`. | none |
| I3X_APIKEY_HEADER | No | Header name used when `I3X_AUTH_SCHEME=apikey`. | X-API-Key |
| I3X_WATCH_MAX_SEC | No | Hard cap on `watch_values` duration. | 300 |
| I3X_RAW_HISTORY_MAX_POINTS | No | Cap on raw VQT points returned per element by `get_history`. | 500 |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| connectA | Point the MCP server at an i3X instance. Required before any data tool will work (unless I3X_BASE_URL was set in the env). Validates by calling /info on the target. Switching connections at any time is fine — call this again. |
| connection_statusA | Returns whether an i3X connection is active, the baseUrl, auth scheme, and catalog snapshot. |
| server_infoA | Returns the i3X server's capabilities, version, and supported features (query/update/subscribe). |
| search_objectsA | Fuzzy/substring search over the cached object catalog. Use this to find equipment, sensors, or processes by name. Returns elementId, displayName, type, and parent path. |
| list_root_objectsA | Returns top-level objects in the i3X hierarchy (no parent). Good entry point for unfamiliar plants. |
| refresh_catalogB | Rebuilds the local object/type catalog from the i3X server. |
| get_objectA | Detailed info for one or more objects: type, parent, composition flag, declared relationships. |
| read_current_valueA | Latest value (with quality and timestamp) for one or more objects. Set maxDepth>1 to include composed sub-components. Values are enriched with engineering units when the ObjectType schema declares them. |
| get_historyA | Historical values over a time range with optional server-side aggregation. Times accept RFC 3339, relative durations ('1h', 'last 30m'), 'now', 'today', or 'yesterday'. For long ranges use aggregation='avg'|'min'|'max'|'count' with a bucket like '5m' or '1h'. |
| find_relatedC | Objects related to the given ones via the i3X relationship graph. If relationshipType omitted, groups by type. |
| describe_typeA | Returns the JSON Schema and per-field units for an ObjectType. |
| watch_valuesA | Monitor one or more objects for live changes over a bounded duration (max 300s). Creates an i3X subscription internally and cleans it up on exit. Returns per-element summary of all observed changes (count, first, last, min, max). |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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