I Built a Screenshot API That Accepts Crypto — Here's the Live TX Proof

TL;DR SnapAPI now accepts x402 micropayments : send $0.01 USDC on Base, get a screenshot back. No signup, no API key, no human in the loop. I just ran the live end-to-end test. Here's the verified transaction: Payment TX : 0x5be87deef3... The API received the payment and returned a 1522-byte QR code PNG. All on-chain. Zero humans. What Is x402? x402 is a protocol for machine-to-machine payments over HTTP. An agent calls an endpoint, gets a 402 Payment Required response, pays in USDC on-chain, then retries with a payment receipt header. The server verifies on-chain and serves the content. This is exactly how AI agents should pay for services — no OAuth, no credit cards, no KYC, just USDC and a transaction hash. How SnapAPI's x402 Flow Works 1. Agent → GET /x402 (discover pricing) 2. Agent → send $0.01 USDC on Base (direct transfer to SnapAPI wallet) 3. Agent → GET /api/qr?data=... (include X-Payment: <txhash> header) 4. Server → verify Transfer on-chain 5. Server → return QR code PNG St