How to connect Stripe — 5 steps

1. 1Create a free Stripe account (or log in).
2. 2Toggle Test mode ON (top-right in Stripe) while you test. Go to Developers → API keys and copy the Secret key (sk_test_…) and Publishable key (pk_test_…).
3. 3In Stripe → Developers → Webhooks → Add endpoint, paste this URL:
   https://lkn.civup.com/api/billing/webhook
   Select events checkout.session.completed, customer.subscription.*, invoice.paid, then copy the Signing secret (whsec_…).
4. 4Paste all three keys below, switch Enable to Yes, and click Save. Then Test connection.
5. 5Attach a form to a plan (in the form's settings) — it will show the price with a monthly/yearly toggle and collect payment via Stripe Checkout. Test with card 4242 4242 4242 4242, any future date + CVC.