List payment methods available for this checkout.
For each enabled method on the merchant, runs the handler’s
evaluate_eligibility against the cart + shipping address. The
response carries eligible + ineligible_reason so the UI can
render unavailable methods explanation-side rather than just
hiding them.
Auth shape mirrors GET /checkout/{id} and POST /payment-intent —
accepts either the storefront token or the per-checkout chk_…
Bearer.
Documentation Index
Fetch the complete documentation index at: https://docs.stella-commerce.com/llms.txt
Use this file to discover all available pages before exploring further.