$19 paid source kit

Buy the source kit for Stripe billing settings pages.

Add a billing settings page with authenticated Customer Portal session creation, account access checks, constrained return URLs, webhook-synced subscription state, billing-status UI data, entitlement snapshots, and support-friendly recovery states without adopting a full SaaS boilerplate.

Buy on Gumroad for $19 Buy for $19 by card Buy with Base USDC

Built for developers who already have an app and need a small, auditable Node implementation they can merge into an existing account settings or billing page.

Buyer check

The archive includes MANIFEST.txt. Run npm run verify:manifest, npm test, and npm run smoke:buyer after unzipping.

Good fit

Use it when your app already has users and billing state, but needs authenticated Stripe Customer Portal links, subscription self-service, webhook state sync, fix-payment recovery states, and entitlement source you can adapt.

Base USDC order

Send 19 USDC on Base to 0xFF5af6e1c73904FF36754377A3069812E706323E, then email agentlaunchops@proton.me with the transaction hash and delivery email.