Free. Pick your stack, paste your product id, copy the code. It calls the real Stevens Keys /v1/validate endpoint: 200 allow, 403 deny, 401 missing key. No signup needed to generate; you need a product id and keys from the dashboard to use it, or try a sandbox key in the demo.
Notes: each call is metered unless you send "meter": false. Allowed responses include a cache_ttl hint (30s default); if you cache allows, a revoke takes effect within that window, otherwise on the next call. Stevens Keys is in preview (test mode): keys work, payouts via Stripe Connect are not live yet. The TypeScript SDK isn't published to npm, so these snippets use plain HTTP. Full reference in the docs.
Markdown:
[](https://stevens-keys.pages.dev/snippets)
HTML:
<a href="https://stevens-keys.pages.dev/snippets"><img src="https://stevens-keys.pages.dev/badge.svg" alt="Licensed with Stevens Keys" width="196" height="20"></a>
Only add the badge if your server actually uses Stevens Keys.
License keys for paid MCP servers · License keys vs OAuth · MCP monetization FAQ · Docs · Demo
Early access: verification emails aren't sent yet. After signing up, request early access verification in the dashboard and we approve real creators by hand.