# Supply Sources Supply Sources ## List Supply Sources - [GET /supply_sources](https://apidocs.mediamath.com/apis/campaigns-api/openapi/supply-sources/list-supply-sources.md): Get a list of Supply Sources. The data fetched for each Supply Source depends on the values of query params. For example, if you use query parameter ; all properties are fetched. ## Get a Supply Source - [GET /supply_sources/{supply_source_id}](https://apidocs.mediamath.com/apis/campaigns-api/openapi/supply-sources/get-supply-source.md): Get a supply source by ID