Products / Royal Mail Green Creds co2 1.0.1 PoorNot so poorAverageGoodVery good Save APIs Tracking RM App V1 1.0.2 REST Online Plans In order to subscribe, you must create an account or sign in. Default Plan 100 calls per hour Select Default Plan Tracking RM App V1 1.0.2 View details Default Plan Default Plan Select 100 calls per hour APIs Title Version Type Rate limits Tracking RM App V1 1.0.2 REST 100 calls per hour PARAMETERS /{mailPieceId}/events 100 calls per hour POST /{mailPieceId}/events 100 calls per hour