Billing API Reference

Endpoints

Method	Endpoint	Description
GET	/api/billing/subscription	Get current subscription
POST	/api/billing/checkout	Create Stripe checkout session
POST	/api/billing/portal	Create Stripe billing portal
GET	/api/billing/usage	Get usage metrics
POST	/api/billing/token-packs	Purchase token pack

Webhooks

Stripe events are processed automatically. Supported events:

• checkout.session.completed — Subscription created
• invoice.paid — Payment received
• customer.subscription.updated — Plan changed
• customer.subscription.deleted — Subscription cancelled