Show content/template for the /tag/ or /taxonomy/ part of the URL in WordPress


I’ve been trying to figure this problem out but can’t quite find an answer.

On my WordPress site, the URL for tags is This displays fine using the tag.php template. However, If I just go to I get a 404 error. It is the same for custom taxonomies I have. For example, I have custom taxonomy of developer so if I goto it loads content under that term using taxonomy-developer.php template. But going to returns a 404.

Is there a template I can use, or some other method to get WordPress to display a list of terms if someone goes to the /tag/ or /taxonomy/ part of the URL?