A technical issue is currently disrupting the intraday flexibility indicator on SMART. Until the problem is resolved, please do not use this data and refer only to the information available on the customer portal.
Services 

There are 3 different ways to request data in various format from the Smart' API system :

1. Get all the data for the defined period D-1 to D+1

2. Get all the data for a chosen period

Example for the period 2012 September the 3rd to september the 4th, in XML format and in French version :
https://smart.natrangroupe.com/api/v1/fr/search?startDate=2012-09-03&endDate=2012-09-04

Attention : it is not possible to request for more than 1 month of data. If you do so, your answer will be restricted

3. Select your data and your period

If you are interested in this option, please e-mail us on : transmission-ops@grtgaz.com