The Application Programmers' Interface (API) is the most heavily used part of the RoMEO service, at times receiving over one million requests per day. This level of usage sometimes overloads the servers, which affects the availability of the service. Unregistered users account for the majority of the heavy API usage, and the patterns of usage further suggest they are using the API very inefficiently. By insisting heavy API Users register for access keys, able to eliminate or minimise the difficulties.
The need to support the legacy output has been holding back the development of SHERPA/RoMEO. In any case, most users want data on permissions for publishers' versions/PDFs in addition to pre-prints and post-prints (authors' submitted and accepted versions respectively). Removing the legacy option will improve the quality of the data and improve performance.
More details from http://www.sherpa.ac.uk/romeo
|30-Sep-2013 -||The limit for unregistered users of V.2.4 will be reduced to 5,000 requests per day|
|14-Oct-2013 -||The limit for unregistered users of V.2.4 & V.2.9 will be fixed at 500 requests per day|
|28-Oct-2013 -||All requests to API V.2.4 will be redirected for processing by V.2.9|
|11-Nov-2013 -||The default schema for API output will be changed to return all article versions (pre-print, post-print, and publisher's version/PDF)|
API V.2.4 will be closed down, and the legacy output option (pre-print & post-print only) will be removed