I built 337 API tools behind a paywall. 3 free calls, then €0.50

A developer launched x402, a pay-per-call API platform offering 337 utility tools including DNS lookups, QR codes, AI chat, and code review, with a free trial of 3 calls and paid plans starting at €0.50 for 100 calls or €5 per month for unlimited access.

Stripe Payments 337 Utility APIs. One Endpoint. Pay Per Call. DNS lookups, QR codes, weather, currency, AI chat, code review, email verification, JSON tools, and 330 more. No subscription. No crypto. Just a card. Buy €0.50 — 100 Calls Check Free Trial Free Trial €0 3 tool calls All tools No payment Try Popular Starter €0.50 /100 calls 100 API calls All 337 tools Pay once Buy Best Value Unlimited €5 /month Unlimited calls All 337 tools Cancel anytime Subscribe 337 Tools DNS Lookup SSL Check Port Scan Email Verify Password Check JSON/YAML Code Beautify Regex Tester JWT Decode SQL Format QR Codes UUIDs NanoIDs Hashes Lorem Ipsum CSV↔JSON Currency Weather Crypto Geolocation AI Chat Sentiment Summarize Translate Grammar Unit Convert Timezone Math Eval Random Data Dice Roll Powered by Stripe · Pay per call · Cancel anytime npm: @gadgethumans/x402