# Payments API Integration
The `client.pay()` helper wraps `/bridge-payment/*` endpoints.
Implemented groups:
- Payment intents.
- Payments.
- Payment methods.
- Addresses.
- Customers.
- Subscriptions.
- Organizations.
- Organization members.
- Guest conversion.
Guest checkout can use request options with `PaymentsClient::guest_options(token)` for endpoints that need `X-Guest-Token`.