Global Air Quality Rankings (Most Polluted & Cleanest Cities) (omnial/get-world-air-quality), Eden Engine

Contract

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

output_schema.json

{
  "type": "object",
  "properties": {
    "data": {
      "type": "object",
      "properties": {
        "top10CleanestCities": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "aqi": {
                "type": "number",
                "description": "Current air quality index for the city."
              },
              "url": {
                "type": "string",
                "description": "A relative URL slug path (e.g. '/new-zealand/auckland/auckland'), not a full URL -- its three segments are the country/state/city slugs a city-level air-quality lookup for this same city would need."
              },
              "city": {
                "type": "string"
              },
              "rank": {
                "type": "number",
                "description": "1 (cleanest) through 15 within this list."
              },
              "state": {
                "type": "string"
              },
              "country": {
                "type": "string"
              },
              "updatedAt": {
                "type": "string",
                "description": "ISO 8601 timestamp of this city's reading."
              }
            },
            "additionalProperties": true
          },
          "description": "15 entries on the one real call observed, ranked 1 (cleanest) through 15 within this list, same field shape as top10PollutedCities."
        },
        "top10PollutedCities": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "aqi": {
                "type": "number",
                "description": "Current air quality index for the city."
              },
              "url": {
                "type": "string",
                "description": "A relative URL slug path (e.g. '/malaysia/sarawak/kuching'), not a full URL -- its three segments are the country/state/city slugs a city-level air-quality lookup for this same city would need."
              },
              "city": {
                "type": "string"
              },
              "rank": {
                "type": "number",
                "description": "1 (most polluted) through 15 within this list."
              },
              "state": {
                "type": "string",
                "description": "State/region name, e.g. 'Sarawak'."
              },
              "country": {
                "type": "string"
              },
              "updatedAt": {
                "type": "string",
                "description": "ISO 8601 timestamp of this city's reading."
              }
            },
            "additionalProperties": true
          },
          "description": "15 entries on the one real call observed, ranked 1 (most polluted) through 15 within this list, despite the field's own name."
        }
      },
      "additionalProperties": true
    },
    "status": {
      "type": "string",
      "description": "'success' on the one real call observed."
    }
  },
  "description": "The rankings record, as returned at routing.responseResultPath ($.output).",
  "additionalProperties": true
}

Pricing

Every real charge, itemised. A model that quietly omits one is a slow financial leak, so nothing here is rolled up, and a charge that only applies to some inputs says so rather than being added in.

Prices in this catalog are the provider's own list price, not your bill: Omnial MCP charges provider cost plus a platform markup on top, so what you are charged is higher than the figure shown. For the exact amount a specific call will cost, run omnial_execute with dry_run: true; that number includes the markup and is what we hold while the call runs. It is a quote, not a cap on the charge.

Charge	Rate
Per call Flat, regardless of what comes back	$0.01365

Cost basis: Not recorded
This tool's catalog entry does not record how its final bill is determined, so we will not tell you whether its cost is fixed before the call or reported by the provider afterwards. Either way what is held is a quote rather than a cap: you are charged what the call actually costs, bounded at 2x the quote.
Updated: Sep 15, 2026