Qr Generator

$0.002

Generate a QR code or barcode as an image (SVG or PNG). Symbologies: qrcode/qr, code128, code39, ean13, ean8, upca, upce, isbn10, isbn13, issn, itf, gs1-128, databar.

POST https://x402.freeq.one/tools/qr_generator

Try it (x402 payment flow)

⚡ Try with your wallet — live payment

curl -X POST https://x402.freeq.one/tools/qr_generator \ -H "Content-Type: application/json" \ -d '{"format": "qrcode", "data": "https://x402.freeq.one"}'

Without payment, the server returns 402 Payment Required with x402 challenge details. A paying agent signs a USDC transaction on Base and retries with the payment header.

⚡ Live payment playground → Service card OpenAPI spec All APIs