OpenSIN Documentation

Appearance

OpenSIN-Bridge Monetization ​

OpenSIN-Bridge operates on a Thin-Client / Server-Brain architecture to protect intellectual property and enforce SaaS subscriptions.

Pricing Model ​

  • Free Install: Extension can be installed for free from the Chrome Web Store.
  • OpenSIN Pro (5 EUR/month): Unlocks all autonomous capabilities (e.g., A2A-SIN-Worker-Prolific integration).

Why This Architecture? ​

Chrome Extensions are client-side JavaScript. To prevent cloning and reverse-engineering, Zero Business Logic exists in the extension. The extension is merely a DOM-extractor and action-executor. All LLM decisions, anti-detection mechanisms, and persona configurations live on our secure Cloudflare Workers backend.

The A2A-SIN-Stripe Integration ​

Instead of handling Stripe events directly in the Cloudflare Worker, we leverage our dedicated A2A-SIN-Stripe agent.

  1. User upgrades to Pro via the extension popup -> Stripe Checkout.
  2. Stripe Webhook fires on successful payment.
  3. A2A-SIN-Stripe catches the webhook, validates the payment, and securely updates the user's subscription status in our central Supabase database.
  4. The Cloudflare Worker validates the JWT against Supabase on every API call to ensure the user has an active Pro plan.