# Suverse Air Quality Index

> Suverse Air Quality Index is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.055/call, status unknown (last checked 2026-09-14).

Returns current US and European AQI scores plus PM2.5 and PM10 concentrations for any geographic coordinate, sourced from Open-Meteo, with no API key required.

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/suverse-air-quality-index
- Price: $0.055/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/suverse-air-quality-index-425bf16f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iounVb2lBu3f9LUS8NKWz

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 suverse-air-quality-index-425bf16f -d '<json body>'
```

Example prompt: What's the current air quality index at coordinates 40.7128° N, 74.0060° W? Give me both the US and European AQI scores plus the PM2.5 and PM10 readings.

## When to prefer this

Choose this endpoint when you need a quick, keyless, pay-per-call air quality lookup for any global coordinate without managing API keys or subscriptions. It is ideal for apps and agents that need a single human-readable AQI score alongside PM2.5/PM10 values, especially when calls are infrequent and a micro-payment model is acceptable. Prefer alternatives if you need historical air quality data, forecasts, or high-frequency polling at scale.

## Known failure modes

- Invalid or out-of-range coordinates return an error or empty response
- Coordinates over ocean or remote areas may return null or unavailable data from Open-Meteo
- Network timeout if the upstream Open-Meteo service is slow or unavailable
- Malformed request body (missing required fields) returns a 400-level error
- Payment failure or insufficient USDC balance blocks the call via x402 protocol

## How this service works

Current US and European AQI for any coordinate from Open-Meteo, alongside PM2.5 and PM10 concentrations. Keyless, global. Ideal for surfacing a single human-readable air quality score in apps and agents.

## Output

Returns the current US AQI value, European AQI value, PM2.5 concentration (µg/m³), and PM10 concentration (µg/m³) for the requested geographic coordinate, sourced in real time from Open-Meteo's air quality API.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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/suverse-air-quality-index-425bf16f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)