Pay 0.002 ETH on Base (~$5) → paste tx hash → download ZIP instantly. No account, no card, no email.
01-url-shortener.js — URL shortener with click analytics + D1 database02-rate-limiter.js — Token-bucket rate limiter per key/IP at the edge03-redirect-manager.js — KV-backed 301 redirect manager with instant propagation04-uptime-monitor.js — Cron-based uptime checks with D1 history + status API05-email-validator.js — Syntax + real MX lookup validator, zero external deps06-json-api.js — KV-backed REST JSON API with CORS, deploy in one commandAll 5 live demos work right now. Click any to verify before you pay.
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