Product Pricing
How prices define billing terms for variants.
Prices attach charge terms to a variant.
Categories
one_timesubscriptionfreevariable
Schemes
fixedvolumegraduatedpackage
Fixed prices
Fixed prices charge a known amount per billing interval or once, depending on the category.
Metered prices
Metered prices link a meter to a recurring price. Usage events determine the quantity charged at cycle close.
Tiered prices
Volume and graduated schemes use tiers to turn a measured quantity into money. Use volume when all units should use the tier reached by total quantity. Use graduated when each tier should charge only the units inside that band.
API details are in Catalog API.