You can connect your Apollo API key to Clay in two ways:1. Through Settings:
โข Click your profile picture
โข Go to Settings
โข Navigate to the Connections section
โข Add your Apollo API key
2. Through the Enrichment Panel:
โข When setting up an Apollo enrichment
โข Click "Add Account" in the account selection area
โข Enter your API keyNote: Using your own API key is only available on paid Clay plans (Starter, Explorer, or Pro).
Source:Guide: Ways to Save Clay Credits - Clay University