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 1,000 (one thousand) requests per second.
(Yes, that's a lot, and that's thanks to the support from our colleagues at the UNEP).
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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If the above policy does not fulfill your needs, or if you need larger quota, then please contact us first.
Please note that the we reserve the right to change the term of service at any time and without prior notice.