Paid API keys and quotas for Node apps
Start from a tested metered API control plane instead of duct-taping keys and quotas later.
Metered API Launch Kit is a paid Node source kit for builders selling an API, enrichment endpoint, scraper, model route, or dataset with key-based access and monthly quotas.
What The Kit Covers
API Keys
Issue, rotate, revoke, and inspect API keys while storing only hashed key material server-side.
Quota Enforcement
Plan limits guard protected routes, record usage events, and return remaining monthly quota for customers.
Checkout Hooks
Stripe checkout webhooks can issue keys after purchase, with a manual Base USDC order endpoint for non-card buyers.
Adapt-It-Yourself Source
This is not a hosted billing platform. It is a compact source kit for developers who want a concrete implementation to adapt into an existing Node API, dataset service, or paid endpoint before building a full dashboard.
npm run verify:manifest
npm test
npm run smoke:buyer
The delivered zip includes setup notes, source files, tests, and a checksum manifest.
Questions Before Buying
What does the metered API kit include?
It includes Node source for HMAC-prefixed API keys, hashed key storage, monthly quota checks, usage logs, remaining-quota summaries, Stripe checkout hooks, manual Base USDC order intake, tests, and buyer smoke checks.
Is this a hosted API gateway?
No. It is an adapt-it-yourself source kit for developers who want the core metering, key, and quota logic to embed in their own API service.
What work remains after purchase?
You connect your persistence layer, map plans and customers, wire the protected-route helper into your app, review the tests, and adapt checkout hooks to your payment flow.
Buy
The live Gumroad checkout delivers the paid source kit. Base USDC orders are available by email when a card checkout is not a fit.