Freemius Core

Wire Freemius billing into a JS/TS backend so a logged-in user can buy a plan and your app can reliably answer one question: "does this user have an active entitlement right now?"

This Skill follows the official Freemius JS SDK integration guide: https://freemius.com/help/documentation/saas-sdk/js-sdk/integration/

Framework note. The examples in this Skill are written in the Hono framework, but the JS SDK supports any framework that supports the Web Standard's Request/Response based routing. Adapt the examples to the real HTTP framework used in the app.

When you need the upstream docs, pick by the app's stack: