Documentation

stubkit

The subscription validation engine for iOS, Android, and web apps. This site covers integration, the state machine, webhook setup for each provider, and the public REST API.

Getting started

Install the SDK and make your first entitlement read in under 5 minutes.

Concepts

How stubkit models tenants, users, entitlements, and subscription state.

Webhook setup

Paste-ready configuration for Apple, Google, and Stripe webhook endpoints.

API reference

Every endpoint under api.stubkit.com with request and response shapes.

Who operates stubkit

stubkit is built and operated by Cryptosam LLC, a United States company based in St. Petersburg, Florida, serving 500+ businesses since 2012. For commercial inquiries, contact info@stubkit.com.