GET airnow.gov HTTP 20011.2 s6.4 KB$0.000021 captured Aug 7, 2026
airnow.gov, as data
One API turns any airnow.gov page into markdown, structured JSON, its link graph or a screenshot, and crawls the whole site the same way. The panel shows the real response we captured.
- Render mode
- Plain HTTP, no browser needed
- Response
- HTTP 200 in 11.2 s
- Page size
- 6.4 KB of markdown, 43 lines
- Fields
- AQI value, AQI category, Primary pollutant, PM2.5 and 3 more
- Captured
- Aug 7, 2026
Free balance on signup, no card. This airnow.gov page cost $0.000021 to fetch.
Some areas issue AQI forecasts for several days, to help you plan. But because things can change, it’s a good idea to check the forecast every day.### The NowCast AQI**What it is:** The NowCast AQI shows your current air quality using the AQI colors and scale.**Who issues it:** EPA uses two algorithms, called “NowCasts,” to relate hourly readings from air quality monitors to the AQI for ozone and the AQI for particle pollution.**What pollutants it covers:** EPA calculates a NowCast for two pollutants: ozone and particle pollution. There is a separate algorithm for each.**What time frame it covers: **The NowCast shows you air quality for the most current hour available by using a calculation that involves multiple hours of past data. The NowCast uses longer averages during periods of stable air quality and shorter averages when air quality is changing rapidly, such as during a wildfire.**What it tells you: **The NowCast gives you the latest information on air quality where you are. Because air quality can change during the day, you can expect to see the NowCast AQI change, too.**Where you can get it: **Anywhere you see “current air quality” information on AirNow.gov -- that has been calculated using the NowCast. The AirNow app and the AirNow widget use the NowCast, too. EPA also provides current air quality information to state and local agencies, media, app developers and others, through its Application Programming Interface (also called an API).**How to use it: **Check the NowCast AQI to see if now is a good time for your outdoor activity. Even on days when the AQI forecast isn’t good, there may be times during the day when air quality is OK for outdoor activity.**Technical information about the NowCast algorithms****Technical Assistance Document for the Reporting of Daily Air Quality**What Spider does on airnow.gov
Same key, five endpoints. The numbers under a cell were measured on this page.
Page to markdown
Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.
11.2 s · $0.000021Page to JSON
Spider reads the page and names the fields. Pass your own schema when you need exact keys.
Rendered capture
Real Chromium, full-page PNG. The same call also returns the rendered HTML.
The call behind the panel
This request produced the response above. Paste it with your key and you get the same bytes.
curl -X POST https://api.spider.cloud/scrape \
-H "Authorization: Bearer $SPIDER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://www.airnow.gov/aqi/aqi-basics/using-air-quality-index/", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://www.airnow.gov/aqi/aqi-basics/using-air-quality-index/", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://www.airnow.gov/aqi/aqi-basics/using-air-quality-index/", {
return_format: "markdown",
});
console.log(page.content);What airnow.gov costs
Multiplied from the measured 6.4 KB page. Estimates round to the cent.
1 GB of transfer costs $1, plus $0.001 per CPU minute, and failed requests cost $0. Crawling daily? The Unlimited plan is a flat monthly rate.
Point this at the rest of airnow.gov.
The capture above took 11.2 s and cost $0.000021. The same call takes any URL on airnow.gov.