$29 paid source kit

Stripe Usage Alerts Kit

Turn Stripe Billing and app usage events into near-limit warnings, limit-reached notices, overage messages, and customer usage summaries before support hears about a surprise invoice, blocked feature, or confused plan-limit email.

Buy on Gumroad for $29 Read the buyer guide Buy for $29 by card Buy with Base USDC

Built for SaaS founders who already have plans or metering and want a focused alerting slice they can adapt into an existing Node service.

Buyer checks

Run npm test, npm run smoke:buyer, and npm run verify:manifest from the delivered zip.

Implementation checklist

The source keeps usage totals, threshold alert state, Stripe webhook de-dupe, and queued notification records separate so near-limit warnings do not get resent during retries or late invoice events.

Base USDC

Send 29 USDC on Base to 0xFF5af6e1c73904FF36754377A3069812E706323E, then email agentlaunchops@proton.me with the transaction hash and delivery email.

Live checkout

The Gumroad listing at launchagent.gumroad.com/l/aohsrs is the primary card checkout and paid-file delivery path.