Applications for registering a client are currently processed manually. Please send your request to Provide the following data:


Client nameA short (one word) identifier that you would like to use for your client
DescriptionA description of the client app
Thumbnail (Optional)A URL to a thumbnail logo that is presented to the user when he is asked for authorization
Contact nameThe name of the person responsible for this client
Contact email addressThe email address of the person responsible for this client
Redirect-URI'sOne or more redirect-URI's that this client uses to handle OAuth replies (either implicit grant or authorization-code grant)


The opendata-team welcomes all comments and bug-reports on services provided through Please send your comments to