What problem does it solve? Products built on Weegloo have no hosted backend, so payment logic must run inside Weegloo Scripts. This Skill guides the full integration of any payment gateway (PG) or Merchant-of-Record into a Weegloo product, ensuring payments are verified server-side and never trusted from browser payloads. ## Core Features & Use Cases - Two integration shapes: CONFIRM (frontend hands a payment id to a Script that pulls truth from the PG's verify API) and CALLBACK (the PG POSTs to a Script endpoint whose first statement verifies the signature). - Default provider policy: If no provider is named, it integrates Stripe in test mode, building the entire checkout first and asking for the pk_test_/sk_test_ keys last, with test card numbers displayed in the checkout UI. - Callback authentication: Chooses between a SpaceAccessToken-scoped /execute endpoint and the token-free /execute/anonymous endpoint based on whether the provider can send custom headers, with HMAC signature verification, replay checks, and idempotency handling. - Use Case: A user asks to add a checkout page to their Weegloo-hosted shop. The Skill creates the order ContentType, a session-creating Script, a confirm Script that compares amount_total against the stored order, and a signed webhook receiver for refunds and renewals. ## Quick Start Add a Stripe test-mode checkout with server-side payment confirmation to my Weegloo product.