Barcode Tools (decode, render, GTIN validate)

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "barcode-tools-decode-render-gtin-validate": {
      "type": "http",
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}

4 tools

• 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, EAN-13/8, UPC-A/E, ITF, PDF417, Codabar. Use formats filter to restrict…

• 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; upca intentionally verifies as zero-padded EAN-13). GTIN codes must have a…

• 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.

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