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Polar - Payment Processing Tool

Polar

Polar

Founded by Birk Jernström in 2022

Open-source billing & subscription platform for digital goods and SaaS.

Cost

Free Tier, Paid

Rating

★ People love it

Time to value

Quick Setup (< 1 hour)

Use Polar to sell digital products, subscriptions, or community memberships with a developer-first API and dashboard. It handles billing, tax compliance, checkout, customer portal, webhooks, and usage tracking. Perfect for indie devs, creators, and startups who want to monetize their projects without building payment infrastructure from scratch.

What Polar does

Create checkout links and embed payment formsManage subscriptions, one‑time purchases, and discountsHandle taxes, VAT, and invoices globallyProvide customer portal for subscriptions and payment methodsSend webhook events for billing and usage actionsSupport usage‑based billing and feature flag entitlementsOpen-source core with hosted service optionBuilt‑in Merchant of Record for global tax/complianceCheckout API with embeddable forms and linksOAuth + webhooks for custom integrationEntitlements engine for access controlAI SDK (MCP) for tool integration

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open-source billing, subscription management, SaaS payments, merchant of record, digital product monetization, checkout API