A billing platform for the intelligence era
Polar is an open-source, merchant-of-record billing platform built for software and AI products. It handles payments, subscriptions, usage-based billing, and global tax compliance through a developer-first API, letting companies monetize their software without managing VAT, GST, or sales tax themselves.
Polar acts as the reseller of your digital goods, taking on liability for international sales tax (VAT, GST, US sales tax) so you don't have to register or file globally.
Meter token-based APIs, autonomous agents, and GPU workloads with real-time event ingestion; Polar counts prompt and completion tokens and bills consumption on the next invoice.
Recurring billing with automatic renewals and dunning, plus fixed-price, pay-what-you-want, or free products with optional minimums.
Instantly grant license keys, file downloads, GitHub repo access, Discord roles, and other entitlements when a customer purchases.
International VAT, GST, and sales tax are calculated, collected, and remitted by Polar as the merchant of record.
Integrate billing with Python and JavaScript SDKs, webhooks, and framework adapters for stacks like Next.js.
Charge for token-metered APIs, autonomous agents, and GPU workloads with usage-based billing that matches how AI products consume resources.
Run recurring subscription billing with automatic renewals and dunning while Polar handles global tax as merchant of record.
Sell one-time digital goods such as licenses, downloads, and templates with automated entitlement delivery.
Sell worldwide without registering for VAT/GST in each jurisdiction, since Polar is the merchant for each sale.
Real-time event ingestion powers unit economics and analytics in the same platform that handles billing.
Polar is open source and built in the open with its community.

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