The gravitational-wave candidate event database (GraCEDb) is a prototype system to organize candidate events from gravitational-wave searches and to provide an environment to record information about follow-ups.
A simple client tool is provided in Glue which can submit a candidate event and query the event database. The client is a standalone Python script and will run using only standard Python libraries.
You can read about using the service at the Howto page. More details are available at the Project page.