# Environment Screen Air Quality Now

> Environment Screen Air Quality Now is a paid API for AI agents from environment-screen.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).

Returns current PM2.5, PM10, ozone, NO2, US AQI, and European AQI with category for a given latitude and longitude.

## Facts

- Endpoint: GET https://environment-screen.x402tookit.com/air-quality-now?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/environment-screen-air-quality-now-2d4f3e0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ooS4RrynMceLy4Uu7ne38

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 environment-screen-air-quality-now-2d4f3e0f
```

Example prompt: What's the current air quality at latitude 40.7128, longitude -74.0060? I want to know the US AQI, PM2.5, PM10, ozone, and NO2 levels, plus which AQI category it falls into.

## When to prefer this

Choose this endpoint when you need real-time, point-in-time air quality data for any global coordinate and require both US EPA AQI and European AQI standards in a single call. It is ideal for applications that need pollutant-level granularity (PM2.5, PM10, ozone, NO2) alongside categorized human-readable verdicts. Prefer this over historical endpoints when current conditions matter, and over US-only endpoints when international locations are involved.

## Known failure modes

- Coordinates fall outside model coverage area — returns null values or degraded flag set to true
- Invalid or out-of-range lat/lon values — likely returns an error or empty response
- Data source temporarily unavailable — degraded field may be true with partial nulls
- Payment not included or insufficient — x402 payment required error
- Rate limiting or network timeout — HTTP error response

## How this service works

Current PM2.5, PM10, ozone, NO2, US AQI and European AQI with category for a latitude and longitude.

## Output

A JSON object containing current air pollutant concentrations (PM2.5, PM10, ozone, NO2, carbon monoxide, sulphur dioxide) in specified units, a US AQI numeric score and category label, a European AQI numeric score and band label, the nearest grid point coordinates, data source name and URL, timestamp, a human-readable summary and verdict, degraded-data flag, and a disclaimer.

## 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",
     "required": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "number",
       "description": "Latitude"
      },
      "lon": {
       "type": "number",
       "description": "Longitude"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "pm10": {
       "type": [
        "null",
        "number"
       ]
      },
      "time": {
       "type": [
        "null",
        "string"
       ]
      },
      "ozone": {
       "type": [
        "null",
        "number"
       ]
      },
      "pm2_5": {
       "type": [
        "null",
        "number"
       ]
      },
      "usAqi": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "gridLat": {
       "type": [
        "null",
        "number"
       ]
      },
      "gridLon": {
       "type": [
        "null",
        "number"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ]
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "europeanAqi": {
       "type": [
        "null",
        "number"
       ]
      },
      "usAqiCategory": {
       "type": [
        "null",
        "st
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/environment-screen-air-quality-now-2d4f3e0f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from environment-screen.x402tookit.com](https://www.zero.xyz/host/environment-screen.x402tookit.com/llms.txt)