A restricted key is enough. Erdi reads charges and new customers and plots them as daily series under your events.
Two series: revenue from succeeded charges, and new customers. Revenue uses the currency Stripe already settled. This is a pull from the Stripe API, not a Stripe webhook — Erdi never receives payment events live.
A restricted key with read access to charges and customers, stored encrypted. A full secret key is the wrong thing to paste. Erdi never writes to Stripe.
Subscriptions as a feed, disputes, payouts, and customer emails. Those stay in Stripe. Erdi only needs the daily revenue line next to what shipped.
Set it up under Settings → Sources in your project.