Barcode Tools (decode, render, GTIN validate)

Tools

Token cost is the o200k count of the tools list JSON, including schemas, before any tool is called.

• decode_barcode

  Detect and decode all barcodes in an image. Input: base64-encoded image bytes (PNG/JPEG/WebP/anything sharp reads). Output: JSON array of {format, text}. Supports QR, Aztec, DataMatrix, Code128/39/93,

• render_barcode

  Render text as a barcode PNG. format: one of qr, aztec, datamatrix, code128, code39, code93, ean13, ean8, upca, itf, pdf417. Output: base64 PNG plus 'decoded' self-check flag (we decode our own render

• validate_gtin

  Check a product code against GTIN rules: length + mod-10 checksum. Returns {valid, type: ean13|ean8|upcA|null, normalized}. Rejects codes with a broken checksum (e.g. 8595234703191).

• list_formats

  Static table of supported barcode formats with render/decode support and notes.