Kelviq is a revenue and payment platform for SaaS companies, software businesses, and AI products. Its merchant-of-record service enables businesses to sell internationally while Kelviq manages tax liability and compliance, including VAT/GST filings and monitoring global tax thresholds. The platform combines subscriptions, usage-based billing, one-time payments, checkout, customer access controls, and global payments in one system.

Businesses can build flexible pricing with flat fees, per-seat charges, usage tiers, credits, overages, or hybrid plans. Real-time metering tracks activity such as AI tokens, API calls, compute, storage, and active users, linking usage events to invoice items. Kelviq supports payments in more than 135 currencies and local payment methods, and handles foreign exchange conversion and payouts.

Hosted checkout and customer portals let customers purchase, manage plans and payment methods, view usage, and download invoices. Entitlement tools control feature access, usage limits, license keys, and digital downloads. Developers can integrate through hosted interfaces or SDKs for TypeScript, React, Node, and Python. Kelviq also provides documentation, API references, and pricing information.