`current_by_location`

Pack: airnow · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/current_by_location for the schema, then POST the same URL with its arguments for the data.

Latest observed air quality index (AQI) for the EPA AirNow reporting area nearest a latitude/longitude in the US: one row per pollutant with AQI value, category, observation hour, agency and yesterday’s AQI. Answers “what is the air quality at these coordinates right now”.

Parameters

Name	Type	Required	Description
`latitude`	number	yes	US latitude
`longitude`	number	yes	US longitude
`distance_miles`	number	no	Search radius for the nearest reporting area (default 25, max 250)

Example call

Arguments

{
  "latitude": 40.7128,
  "longitude": -74.006
}

curl

curl -X POST https://gateway.pipeworx.io/airnow/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"current_by_location","arguments":{"latitude":40.7128,"longitude":-74.006}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('current_by_location', {
  "latitude": 40.7128,
  "longitude": -74.006
});

More examples

{
  "latitude": 34.0522,
  "longitude": -118.2437,
  "distance_miles": 100
}

Response shape

Always returns: latitude, longitude, count, observations

Field	Type	Description
`latitude`	number	Query latitude
`longitude`	number	Query longitude
`count`	integer	Number of observations returned
`observations`	array	Latest AQI observations for nearest station

Full JSON Schema

{
  "type": "object",
  "properties": {
    "latitude": {
      "type": "number",
      "description": "Query latitude"
    },
    "longitude": {
      "type": "number",
      "description": "Query longitude"
    },
    "count": {
      "type": "integer",
      "description": "Number of observations returned"
    },
    "observations": {
      "type": "array",
      "description": "Latest AQI observations for nearest station",
      "items": {
        "type": "object",
        "properties": {
          "date": {
            "type": [
              "string",
              "null"
            ],
            "description": "Date observed (YYYY-MM-DD)"
          },
          "hour": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Hour observed (0-23)"
          },
          "timezone": {
            "type": [
              "string",
              "null"
            ],
            "description": "Local time zone"
          },
          "reporting_area": {
            "type": [
              "string",
              "null"
            ],
            "description": "Geographic area name"
          },
          "state": {
            "type": [
              "string",
              "null"
            ],
            "description": "State code"
          },
          "latitude": {
            "type": [
              "number",
              "null"
            ],
            "description": "Site latitude"
          },
          "longitude": {
            "type": [
              "number",
              "null"
            ],
            "description": "Site longitude"
          },
          "pollutant": {
            "type": [
              "string",
              "null"
            ],
            "description": "Pollutant name (e.g., O3, PM2.5)"
          },
          "aqi": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Air Quality Index value"
          },
          "category": {
            "type": [
              "string",
              "null"
            ],
            "description": "AQI category (Good, Moderate, etc.)"
          },
          "category_number": {
            "type": [
              "integer",
              "null"
            ],
            "description": "AQI category numeric code"
          }
        }
      }
    }
  },
  "required": [
    "latitude",
    "longitude",
    "count",
    "observations"
  ]
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the airnow pack

{
  "mcpServers": {
    "airnow": {
      "url": "https://gateway.pipeworx.io/airnow/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

current_by_location