Nominatim usage policy

This is an Acceptable Use Policy for the server running at nominatim.openstreetmap.org and does not apply to nominatim services run by yourself or other organisations

Please be aware that data provided by Nominatim is based on OpenStreetMap data and is licenced CC-BY-SA although small extractions are likely to be covered by fair usage / fair dealing. Please provide attribution suitable for your medium.

Developers making use of the API must ensure that the application includes a valid User-Agent identifying the application (please note - this means the application being used, not pretending to be a common web browser, really, we can tell). Where possible please include contact details in your User-Agent string. If you are unable to modify your User-Agent string include contact details as an extra parameter in your request (i.e. email=whatever@test.org).

If you are sending in large numbers of requests it is particularly important that we have some way of contacting you - otherwise, in the event of problems, the only alternative is to ban your IP and wait for you to contact us.

Bulk geocoding is NOT encouraged and applications making heavy use of the API may be blocked to preserve functionality for all users. Unless pre-arranged please limit your requests to a single thread and an absolute maximum of 1 request per second. To avoid having your access blocked, please discuss your requirements with the IRC channel or with a System Administrator prior to starting.