Cannot pull Docker Hub image tags

According to the Docker Hub API docs I should be able to pull all available image tags from your Docker Hub via the following GET command:
https://hub.docker.com/v2/namespaces/mongo/repositories/mongo/tags/?page_size=1000

Note that this syntax works with other projects like Opensearch: https://hub.docker.com/v2/namespaces/opensearchproject/repositories/opensearch/tags/?page_size=1000

Can someone please tell me which namespace and repository I should be using if not mongo/mongo?