# Air Quality Chennai

> Air Quality Chennai is a paid API for AI agents from data.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Returns current air quality data for Chennai including European and US AQI, PM2.5, PM10, ozone, NO2, SO2, CO, and a health label.

## Facts

- Endpoint: GET https://data.intel.rallylive.ca/data/air-quality/chennai?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/air-quality-chennai-6a9b1c22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_o32a7HxukiUc8Ws8e0LK5

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-chennai-6a9b1c22
```

Example prompt: What's the air quality like in Chennai right now? I want to know the AQI, PM2.5, and whether it's safe to go for a run outside.

## When to prefer this

Use this endpoint when you need real-time, structured air quality data specifically for Chennai, covering multiple pollutants and both European and US AQI indices. Prefer this over generic web searches when you need machine-readable values for health decisions or automated monitoring workflows. It is well-suited for agents that need to make outdoor-activity or health recommendations for Chennai residents or visitors.

## Known failure modes

- Upstream CAMS/Open-Meteo data unavailable — may return an error or stale data
- Network timeout if the data.intel.rallylive.ca server is unresponsive
- Payment failure via x402 protocol if the $0.01 USDC payment is not processed
- Empty or null pollutant fields if sensor data is temporarily missing for Chennai

## How this service works

Air quality in Chennai right now: European and US AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide and carbon monoxide with a health label, from Open-Meteo Air Quality (CAMS). Outdoor-activity and health decisions for Chennai. $0.01 per call.

## Output

A JSON object containing real-time air quality readings for Chennai: European AQI score, US AQI score, PM2.5 concentration, PM10 concentration, ozone level, nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO), and a human-readable health label (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": {}
    }
   },
   "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-chennai-6a9b1c22/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data.intel.rallylive.ca](https://www.zero.xyz/host/data.intel.rallylive.ca/llms.txt)