Another question, where can I see the costs of the API per run I do?

You can view credit costs per run by right-clicking on a column and selecting "Run Info" to see credits spent on that specific column. For overall workspace credit usage, click your account name, go to Settings, then Credit usage in the sidebar. Note: When using personal API keys, price breakdowns won't appear in our UI - you'll need to monitor usage directly with your API provider.

Sources: How Clay Credits Work Credits | Documentation | Clay University AI Tokens | Documentation | Clay University