IQAir vs Website Carbon

IQAir's AirVisual API serves real-time and forecast air-quality and weather data for stations and cities worldwide. Its free Community plan covers up to 500 calls/day, with paid Startup ($399/mo) and Enterprise ($999/mo) tiers unlocking much higher volume.

Website Carbon estimates the CO2 emitted by loading a web page, based on page weight and whether the host uses green hosting, returning a digital carbon rating alongside the raw gCO2e figure. As of 14 July 2025 the provider retired public access to its convenience /site endpoint (which fetched a URL for you); the /data endpoint, which takes bytes and a green-hosting flag directly, remains free and open with no key.