API - Air Quality Programmatic APIs

API - Air Quality Programmatic APIs

Share: aqicn.org/api/es/


Initial setup

The first step is to make sure to acquire your own token for all API access.
You can get your token from the data-platform token page.

Map tile API

The map tile API can be used to show the real-time Air Quality index on a google, bing or openstreet map.
Read more about the Map tile API description and examples

Widget API

The widget API can be used to integrate the real-time Air Quality index on any web page.
Read more about the Widget API description


There is also a non-progammatic API for an easy integration with word-press, which can generate any of the widget below. For more information, go to your city page (eg aqicn.org/city/auckland), scroll-down until you find the "Download the real-time Air Quality Index Widget" and click on the "Wordpress & Blogger" logo.

JSON API

 $ curl -i "http://api.waqi.info/feed/shanghai/?token=demo"
The JSON API can be used for advanced programmatic integration:
  • Access to more than 9000 station level and 600 city level data
  • Geo-location query (based on latitude/longitude or IP address)
  • Individual AQI for all pollutants (PM2.5, PM10, NO2, CO, SO2, Ozone)
  • Station name and coordinates
  • Originating EPA name and link
  • Current weather conditions
  • Stations within a map lat/lng bounds
  • Search stations by name
For more information, you can use the on-line API documentation or refer to the sample javascript code / web demo.

Note that more functionality will be added during the coming weeks:
  • Air Quality forecast (for 3~8 days)
  • Weather forecast (for 8 days)
  • World ranking and trend
  • Neighbor stations AQI
  • Historical Data
  • Pollutant raw concentration (for usage with different scales)
  • PubSub notification service


Term of Service

The usage of the programmatic API are subjected to a "acceptable usage" policy:

API Usage

  • All the APIs are provided for free.
  • A valid key must be used for accessing the API.
  • All the API are subjected to quota.
The default quota is max 1000 (one thousand) requests per minute (~16RPS) and with burst up to 60 requests.

Data usage

  • The data can not be sold or included in sold packages.
  • The data can not be used in paid applications or services.
  • The data can not be redistributed as cached or archived data.
(where data refers to the data obtained from the APIs)
For the historical data, check the data platform page.

App usage

  • Attribution to the World Air Quality Index Project as well as originating EPA is mandatory.
  • Public usage by for-profit corporations requires explicit agreement wit the World Air Quality Index team.
  • Public usage by non-profit organization requires prior notification (by email) to the World Air Quality Index team.
(where app refers to any application, services which make use of the above mentioned data)

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