# Air Quality by Coordinate (US & European AQI)

> Air Quality by Coordinate (US & European AQI) is a paid API for AI agents from mcpfax-utility.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns US AQI, European AQI, and pollutant concentrations (PM2.5, PM10, O3, NO2, etc.) for a given latitude/longitude coordinate.

## Facts

- Endpoint: GET https://mcpfax-utility.bowling-anthony.workers.dev/v1/air-quality
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/air-quality-by-coordinate-us-european-aqi-69c277ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_G6LEAonRRh_E9VYu4bVEJ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability air-quality-by-coordinate-us-european-aqi-69c277ed
```

Example prompt: What's the current air quality at coordinates 40.7128° N, 74.0060° W — give me both the US and European AQI plus the main pollutant concentrations.

## When to prefer this

Choose this endpoint when you need both US AQI and European AQI standards in a single call for a precise geographic coordinate, especially when you also need individual pollutant concentrations rather than just a summary index. Prefer this over weather APIs that only include a basic AQI without pollutant breakdowns.

## Known failure modes

- Invalid or out-of-range coordinates return an error
- No monitoring data available for remote or ocean coordinates
- Rate limiting or payment failure returns 402 or 429
- Temporary upstream data source outages may return 503

## How this service works

Air quality — US & European AQI plus pollutant concentrations by coordinate.

## Output

Returns current US AQI value and category, European AQI value and category, and individual pollutant concentrations (PM2.5, PM10, O3, NO2, SO2, CO, etc.) for the provided coordinates, typically sourced from real-time monitoring data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/air-quality-by-coordinate-us-european-aqi-69c277ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-utility.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-utility.bowling-anthony.workers.dev/llms.txt)