Air Quality is a simple tool for getting air quality data. It returns the air quality index, o3, pm2, and more.
Try it — live request, no key required
No key required to try it. Get a key to use it in your app.
{
"status": "ok",
"error": null,
"data": {
// Air Quality response payload
}
}
About the Air Quality API
Air Quality works by retrieving the air quality data from various reliable sources and providing it in a structured format. You can expect accurate and up-to-date information.
What people use it for
- Health Monitoring
- Monitor air quality by using the Air Quality API to get real-time air quality data. Use the data to track pollution levels and protect your users' health
- Environmental Analysis
- Analyze environmental conditions by using the Air Quality API to get air quality data. Use the data to study pollution levels and their impact on the environment
- Weather Forecasting
- Forecast weather conditions by using the Air Quality API to get air quality data. Use the data to predict air pollution levels and plan outdoor activities
- City Planning
- Plan urban development by using the Air Quality API to get air quality data. Use the data to assess pollution levels and make informed decisions on city planning
Ways to call it
One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.
- JSON
- Default REST response
- XML
- Markup format
- YAML
- Human-readable
- CSV
- Tabular export
- GraphQL
- Query language
- MCP
- For AI agents
Other ways to use Air Quality
Same data, same APIVerve account, same credit balance — one key works on all of them.
What does the Air Quality API do?
How do I authenticate Air Quality API requests?
How much does the Air Quality API cost?
How fast is the Air Quality API?
What response formats does the Air Quality API support?
What HTTP method does the Air Quality API use?
Request parameters — GET /v1/airquality
Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.
Required
| Parameter | Type | Example | Description |
|---|---|---|---|
cityRequired | string | San Francisco | The city name for which you want to get the air quality data (e.g., New York) |
curl "https://api.apiverve.com/v1/airquality?city=San%20Francisco" \
-H "x-api-key: YOUR_API_KEY"Authentication
Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.
| Header | When | Value |
|---|---|---|
x-api-keyRequired | Every request | Your API key. Header names are case-insensitive, so X-API-Key is the same header. |
AuthorizationAlternate | Instead of the above | Bearer <key> — for clients that only expose bearer auth. Resolves to the same account and the same billing. |
A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.
Response — GET /v1/airquality
Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.
{
"status": "ok",
"error": null,
"data": {
"pm2_5": 16.75,
"pm10": 18.85,
"carbonMonoxide": 387.85,
"ozone": 9,
"nitrogenDioxide": 38.55,
"sulfurdioxide": 5.95,
"usEpaIndex": 2,
"gbDefraIndex": 2,
"recommendation": "The air quality in San Francisco is good. It is safe to go outside.",
"city": "San Francisco"
}
}
Response fields
Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.
| Field | Type | Example | Description |
|---|---|---|---|
pm2_5 | number | 16.75 | Fine particulate matter concentration in micrograms per cubic meter |
pm10 | number | 18.85 | Coarse particulate matter concentration in micrograms per cubic meter |
carbonMonoxidePremium | number | 387.85 | Carbon monoxide concentration level in parts per billion |
ozonePremium | number | 9 | Ground-level ozone concentration in parts per billion |
nitrogenDioxidePremium | number | 38.55 | Nitrogen dioxide concentration level in parts per billion |
sulfurdioxidePremium | number | 5.95 | Sulfur dioxide concentration level in parts per billion |
usEpaIndexPremium | number | 2 | US EPA air quality index rating from one to six scale |
gbDefraIndexPremium | number | 2 | UK DEFRA air quality index rating from one to ten scale |
recommendation | string | "The air quality in San Francisco is good. It is safe to go outside." | Air quality assessment and health recommendation for the city |
city | string | "San Francisco" | The city name for which air quality data was retrieved |
Response headers
Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.
| Header | What it carries |
|---|---|
x-api-remaining-credits | Credits left in the current cycle |
x-api-credits-used | Credits spent in the current cycle |
x-api-max-credits | The allowance for the cycle |
x-api-version | Version of the endpoint that answered |
Errors
Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.
| Status | Meaning | What to do |
|---|---|---|
400 | Input was rejected | Read error; it names the parameter that has to change. |
401 | Key missing or invalid | Check the header name and the key value. |
403 | Key valid, but not permitted here | A key restriction or an IP allow-list — never a bad key. |
429 | Rate limited, or out of credits | Read error to tell them apart, then back off or top up. |
What a call costs — 10 credits per call
Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.
| Plan | Per month | Credits | Air Quality calls | Per 1,000 calls |
|---|---|---|---|---|
| Free | Free | 200 | 20 | Free |
| Starter | $29.99 | 200,000 | 20,000 | $1.50 |
| Pro | $99.99 | 1,000,000 | 100,000 | $1.00 |
| Mega | $299.99 | 4,000,000 | 400,000 | $0.75 |
Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.
Call it from cURL — GET /v1/airquality
No SDK to install — this is a plain HTTPS call to /v1/airquality with your key in the x-api-key header. Swap in a real key and it runs as-is.
curl "https://api.apiverve.com/v1/airquality" \
-H "x-api-key: YOUR_API_KEY"Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Node.js — GET /v1/airquality
Install the Node.js SDK, then call the Air Quality API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.
npm install @apiverve/airqualityconst res = await fetch("https://api.apiverve.com/v1/airquality", {
headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Python — GET /v1/airquality
Install the Python SDK, then call the Air Quality API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.
pip install apiverve-airqualityimport requests
res = requests.get(
"https://api.apiverve.com/v1/airquality",
headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from C# / .NET — GET /v1/airquality
Install the C# / .NET SDK, then call the Air Quality API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.
dotnet add package APIVerve.API.AirQualityusing var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");
var json = await client.GetStringAsync("https://api.apiverve.com/v1/airquality");
Console.WriteLine(json);Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Go — GET /v1/airquality
No SDK to install — this is a plain HTTPS call to /v1/airquality with your key in the x-api-key header. Swap in a real key and it runs as-is.
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/airquality", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from PHP — GET /v1/airquality
No SDK to install — this is a plain HTTPS call to /v1/airquality with your key in the x-api-key header. Swap in a real key and it runs as-is.
$ch = curl_init("https://api.apiverve.com/v1/airquality");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);
$response = curl_exec($ch);
echo $response;Resources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Call it from Ruby — GET /v1/airquality
No SDK to install — this is a plain HTTPS call to /v1/airquality with your key in the x-api-key header. Swap in a real key and it runs as-is.
require "net/http"
uri = URI("https://api.apiverve.com/v1/airquality")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"
res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.bodyResources
Also published for
Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.
Zero-code embed — one snippet, no backend
Drop an interactive Air Quality form onto any page. The widget calls the API for you, so no key ever appears in your markup and there is nothing to deploy.
Changelog — Air Quality API
Every change to this endpoint, newest first. Breaking changes ship as a new version and the previous one keeps serving — response fields are added, never removed or retyped in place, so an integration written against v1 keeps working.
Entries are picked up from dated catalog snapshots, so the first one appears after the next snapshot that moves something. A period where nothing changed produces no entry — silence is a valid changelog for the Air Quality API.
Weather
- Air Quality
- Marine Weather
- Moonrise Moonset
- Solar Potential
- Sunrise Sunset
- Weather
- Weather Seasons
- Worldwide Earthquakes
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