The collection APIs are part of content-service. All the API's specific to the collection are exposed along with the asset in the content-service itself.
{% hint style="info" %} Moving out the collection-service as an independent service from content-service is planned as part of the roadmap. {% endhint %}
{% content-ref url="../../../../use/installation-guide/services/asset-management-service/" %} asset-management-service {% endcontent-ref %}