{"openapi":"3.1.0","info":{"title":"x402 QR Code","version":"1.0.0","x-pricing":{"currency":"USDC","network":"Base (eip155:8453)"}},"servers":[{"url":"https://qr.camelai.io"}],"paths":{"/":{"post":{"summary":"Generate a QR code from text or URL. Send {\"text\": \"https://example.com\"}","description":"Generate a QR code from text or URL. Send {\"text\": \"https://example.com\"}. Requires x402 payment ($0.001 USDC on Base).","responses":{"200":{"description":"Success","content":{"image/svg+xml":{}}},"400":{"description":"Bad request"},"402":{"description":"Payment Required — sign a USDC payment on Base and resend with the payment header"}},"requestBody":{"required":true,"content":{"application/json":{"schema":{"type":"object","properties":{"text":{"type":"string","description":"The text or URL to encode as a QR code"},"size":{"type":"number","description":"Size in pixels (32-1024, default 256)"}},"required":["text"]}}}}}}}}