Kelviq is the complete monetization platform for SaaS, AI, and digital products. It handles payments, global tax, subscriptions, usage-based billing, digital delivery, license keys, and compliance in one place, for 3.5% + 40¢ per transaction.
Comparing payments for SaaS and AI? Beyond Kelviq, consider Stripe for global rails and mature APIs, Paddle for Merchant of Record simplicity, and Lago or Polar if you want open‑source control. Solo builders can try Dodo Payments for quick checkout and usage billing.