I Built a Pay-Per-Call Crypto Signal API with x402 (opens in new tab)

I Built a Pay-Per-Call Crypto Signal API with x402 — Here's the Architecture TL;DR: I shipped a live crypto signal API where every call costs $0.01 in USDC. No subscriptions, no API keys, no signup friction. Just pay-per-call on Base mainnet. Here's how it works. The Problem with API Monetization Every developer who's tried to monetize an API hits the same wall: Stripe integration = weeks of work + KYC + chargeback risk API keys = abuse, sharing, endless support tickets Subscriptions = users ...