Machine-readable warnings about small positive strokes, tiny inverse gaps and isolated details. Uses the actual PrintCheck coverage/SWT diagnostic engine, with physical print dimensions and technology-specific thresholds.
0.05 USDC per paid API call · Base Mainnet · x402 v2
Live free sample · OpenAPI · Agent discovery manifest
Submit a sampled monochrome ink mask, not the SVG itself. # means ink, . means substrate. Include final width and height in millimeters and method code. Maximum mask: 192 × 192 pixels; values below three samples per technical minimum are flagged as low resolution.
POST /api/printcheck
Content-Type: application/json
{"rows":["........","..####..","..####..","........"],"widthMm":12,"heightMm":6,"method":"B1","conditions":{"underbase":false}}
Structured counts of positive, negative and isolated candidates, normalized bounding boxes, thresholds, sample resolution warning and unresolved print conditions.
Limits: This is a sampled-mask diagnostic, not a full PDF/CDR/EPS interpreter, rasterizer, automated approval, or guarantee of printability. Use sufficient resolution and professional verification.
Payment-capable clients receive HTTP 402 with PAYMENT-REQUIRED, settle 0.05 USDC on Base and repeat with an x402 payment signature.