# Citiview Air Quality Lookup

> Citiview Air Quality Lookup is a paid API for AI agents from agents.citiviewgroup.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-14).

Returns real-time air quality readings (PM2.5, PM10, ozone, NO2, etc.) near a specified location from OpenAQ monitoring stations, with a US AQI index and health category.

## Facts

- Endpoint: GET https://agents.citiviewgroup.com/v1/airquality?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/citiview-air-quality-lookup-3633d75c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vnxpnm8YdcjRF3Au-PvXe

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 citiview-air-quality-lookup-3633d75c
```

Example prompt: What's the current air quality near downtown Seattle? Give me the AQI, health category, and PM2.5 and ozone readings from nearby monitoring stations.

## When to prefer this

Choose this endpoint when you need real-time, location-specific air quality data with a standardized US AQI score and health category, backed by the OpenAQ monitoring network. Prefer it over generic weather APIs that don't include pollutant breakdowns, or over station-finder endpoints when you want the actual readings (not just station metadata) for a given place.

## Known failure modes

- No nearby monitoring stations found within the specified radius — returns empty or null readings
- Invalid or out-of-range latitude/longitude values cause a validation error
- Station data may be stale if OpenAQ sensors have not recently reported
- Missing required input parameters (lat/lon or near) result in a bad request error
- Network or upstream OpenAQ API unavailability causes a timeout or 5xx error

## How this service works

Air quality near any place from nearby monitoring stations (OpenAQ): PM2.5, PM10, ozone, NO2 and more, with a US AQI and health category.

## Output

Returns real-time air quality measurements from the nearest OpenAQ monitoring stations to the specified location, including individual pollutant concentrations (PM2.5, PM10, ozone, NO2, and others), a computed US AQI score, and a corresponding health category (e.g., Good, Moderate, Unhealthy).

## 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",
     "properties": {
      "lat": {
       "type": "number"
      },
      "lon": {
       "type": "number"
      },
      "near": {
       "type": "string"
      },
      "radius_m": {
       "type": "integer"
      }
     }
    }
   },
   "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/citiview-air-quality-lookup-3633d75c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.citiviewgroup.com](https://www.zero.xyz/host/agents.citiviewgroup.com/llms.txt)