Kelviq

Kelviq is a revenue infrastructure platform that consolidates payments, usage billing, tax compliance, and merchant services for SaaS and AI companies selling globally. It supports flexible pricing models including flat fees, per-seat, usage-based, volume, credits, one-time payments, and hybrid strategies, and accepts 135+ currencies and local payment methods while handling tax nexus, VAT, and liability as merchant of record. Real-time usage metering tracks API calls, tokens, compute units, and custom metrics without processing lag, and dynamic entitlements automatically gate features, enforce usage caps, and issue license keys based on subscription tier. Kelviq includes pre-built hosted checkout pages and a customer self-service portal for upgrades and invoice management, with fully typed developer SDKs for TypeScript, React, Node, and Python.