Polar is a billing platform that handles payments, subscriptions, and usage-based pricing for software products.
The platform solves the problem of building billing infrastructure from scratch by providing a complete financial layer for monetization. It supports multiple pricing models including usage billing, subscriptions, seat-based pricing, credits, trials, and discounts that can be composed together. The tool meters consumption at a granular level—tracking tokens, API calls, agent runs, GPU seconds, and storage—and handles the operational complexity of billing including tax compliance, customer accounts, dunning, and receipts as a merchant of record.
Polar suits AI startups and SaaS companies that need to charge for consumption without building billing systems internally. It is particularly well-suited for products that meter tokens or compute resources, autonomous agents charged per run, and GPU-based services billed by the second. The platform provides checkout flows, real-time metrics dashboards, and worldwide tax handling. Startups meeting eligibility criteria can apply for a program offering reduced transaction fees.
The project maintains active development with regular feature additions and improvements to its billing capabilities. The team responds to security disclosures through a responsible disclosure process. Feature requests and bug reports are collected through an in-dashboard feedback mechanism, indicating structured communication channels with users about the product roadmap.
