NestDaddy

Barcode Tools (decode, render, GTIN validate)

io.github.appvantagelabs2-a11y/barcode · v1.0.2

Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.

Connect Remote server

Terminal
claude mcp add --transport http barcode https://mcp.casuyi.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "barcode": {
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "barcode": {
      "type": "http",
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://mcp.casuyi.com/mcp

Tools 4 found in our last check

  • 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 result…

  • 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 va…

  • 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.

Details

Endpointhttps://mcp.casuyi.com/mcp (Streamable HTTP)
First published16 Sep 2026
Last updated16 Sep 2026
Registry nameio.github.appvantagelabs2-a11y/barcode

More security servers See all

Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.