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Manage software payments, subscriptions, and sales tax.
Combine software payments, usage billing, and feature access

Kelviq provides payment and billing infrastructure for software businesses, including SaaS products and AI applications. It supports subscriptions, one-time purchases, seat-based pricing, metered usage, and credit systems in the same service. Developers can record events such as API calls or token consumption and connect those measurements to a customer's bill.
Hosted checkout and a customer portal handle purchases, plan changes, payment details, and invoices. An entitlement system links plans to feature access, usage limits, license keys, and digital downloads. Kelviq operates as a merchant of record and offers tax handling as part of that service. SDKs and APIs let teams integrate billing into their own interfaces and application logic.
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