Hi @yashwanth-csi, we try to steer implementor towards the FHIR API because it's a standardised way of accessing terminology content. The same API is implemented in many terminology servers which means your implementation is not dependant on a specific terminology server.

Lists of concepts within SNOMED CT refsets can be accessed using the FHIR API and also map refsets.

For example, the concepts within the 450970008 |General Practice / Family Practice reference set (foundation metadata concept)| refset are listed here: https://snowstorm.ihtsdotools.org/fhir/ValueSet/$expand?url=http://snomed.info/sct?fhir_vs=refset/450970008&count=100&offset=0

Please note that the public instance of Snowstorm is for manual browsing and low traffic testing purposes only. It must not be used in production systems and has no SLA.