Stacktree x402 API key provisioning: pay $1.00 over x402 for a persistent API key, so an agent gets its own credentials without human approval, for hosting HTML pages as private, shareable web pages. The key is returned once in the response body.

Stacktree: host generated HTML as a live, shareable web page on a permanent, private, unguessable link ($0.50). POST any HTML (a report, dashboard, landing page, static site, or any webpage an agent produced) with payment; we return the URL and a one-time claim token. No account, no key, no human in the loop. The paying wallet can update the page free at the same URL, and a deleted page is restorable for 30 days.