RevenueCat connects with a V2 secret API key (it starts with sk_). Create one in your RevenueCat project's API Keys screen with read-only access to all three permission groups: Charts & Metrics, Customer Information, and Project Configuration.
If the key is missing a permission, Artec rejects it at connect time and names exactly what's missing: no silent half-working states.
Then pick which RevenueCat project binds to your Artec project.
This feeds MRR, ARR, revenue, active subscribers, trials and trial conversion, churn, and ARPU into the Performance tab: a recent slice shows up right away, and full history backfills over the next day.
Artec also connects Adapty, Superwall, and Stripe for revenue: connect whichever you actually use.