GUS Knowledge Databases Variable Metadata: Definition, Sections, Time Range and Source Survey (Statistics Poland)

gusdbw/variable-metadata

Returns the full metadata of one variable of Statistics Poland's Knowledge Databases: its name, tags, concept definitions, methodological notes, the sections (cross-sections) it is published in with their time range, frequency and last update date, and the dataset and survey it comes from. The section id feeds GUS DBW Variable Data and GUS DBW Section Positions. Definitions carry HTML. Statistics Poland data under CC BY 4.0, served by Eden Engine; not an official Statistics Poland product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.

Data source

Statistics Poland (GUS)

Source: Statistics Poland (GUS), CC BY 4.0. Served by Eden Engine; not an official Statistics Poland (GUS) product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

Install it Create an account

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "gusdbw/variable-metadata" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "gusdbw/variable-metadata" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "gusdbw/variable-metadata", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "gusdbw/variable-metadata", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "variable_id"
  ],
  "properties": {
    "lang": {
      "enum": [
        "en",
        "pl"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of names and descriptions: en (English) or pl (Polish). Defaults to en. The field names of the response are Polish in both."
    },
    "variable_id": {
      "type": "integer",
      "minimum": 1,
      "description": "Variable id from GUS DBW Area Variables, for example 302 (retail prices of non-food goods and consumer services)."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "id-zmienna",
    "nazwa"
  ],
  "properties": {
    "tagi": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Keyword tags: id-tag and nazwa-tag."
    },
    "nazwa": {
      "type": "string",
      "description": "Variable name."
    },
    "badania": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Statistical surveys behind it."
    },
    "pojecia": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Concept definitions: nazwa-pojecie, definicja and uwagi (HTML), validity dates."
    },
    "zestawy": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Datasets the variable comes from."
    },
    "jednostki": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Responsible organisational units."
    },
    "przekroje": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "The sections the variable is published in. `id-przekroj` is the id GUS DBW Variable Data takes; `szereg-czasowy` is the year range, `nazwa-czestotliwosc` the frequency and `aktualizacja-ostatnia` the last update date."
    },
    "id-zmienna": {
      "type": "integer",
      "description": "Variable id."
    },
    "akty-prawne": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      },
      "description": "Legal acts."
    },
    "nazwa-skrocona": {
      "type": "string",
      "description": "Short name."
    },
    "wyjasnienia-metodologiczne": {
      "type": "object",
      "description": "Methodological notes (`notki`).",
      "additionalProperties": true
    }
  },
  "description": "The variable's metadata, in the service's own (Polish) keys.",
  "additionalProperties": true
}