x402-tools QR Code Generator

Choose this endpoint when an AI agent needs to programmatically produce a QR code from any text or URL with control over format, margin, and error correction level, and is operating in an x402-enabled payment environment that can settle $0.01 USDC per call. Prefer this over self-hosted QR generation when you need a simple pay-per-use model without infrastructure overhead.

• Text exceeds 2000 character limit — input too large error
• Invalid format enum value — must be 'svg' or 'dataurl'
• Margin out of range — must be 0–10
• Invalid error_correction value — must be L, M, Q, or H
• Payment not settled — 402 response if x402 USDC payment is not completed
• Network timeout or server error — 5xx response