Darwin is the source of information that feeds all of National Rail Enquiries real time services, providing predictions and actual train movements across the National Rail network in real time.

This service exposes the reference data that's available from the NRE feeds. This data doesn't change often but we do an update once every day so we are as current as possible.

At the current moment in time the following portions of the reference data are available via the api:

cancel
Reasons for why a service has been cancelled
late
Reasons why a service has been delayed