You can group topics with the group_by parameter:
- Get counts of topics by
domain:
https://api.openalex.org/topics?group_by=domain.id
Or you can group using one the attributes below.
{% hint style="info" %} It's best to read about group by before trying these out. It will show you how results are formatted, the number of results returned, and how to sort results. {% endhint %}