Barcode Tools (decode, render, GTIN validate)

io.github.appvantagelabs2-a11y/barcodeVersion 1.0.2

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

Status

Responds202 msNov 14, 2026, 14:45 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:45 UTC
Latency: 202 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://mcp.casuyi.com/mcpResponds202 msNov 14, 2026, 14:45 UTC

No sign-in

Claude Code

claude mcp add --transport http barcode https://mcp.casuyi.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: barcode
Remote MCP server URL: https://mcp.casuyi.com/mcp

Cursor

{
  "mcpServers": {
    "barcode": {
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"barcode","type":"http","url":"https://mcp.casuyi.com/mcp"}'

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Tools

4 tools

Tools of Barcode Tools (decode, render, GTIN validate)
	Description		Read-only	Idempotent	Open world
`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 results.	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 results.	Not declared	Not declared	Not declared	Not declared
`list_formats`Static table of supported barcode formats with render/decode support and notes.	Static table of supported barcode formats with render/decode support and notes.	Not declared	Not declared	Not declared	Not declared
`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 valid mod-10 checksum.	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 valid mod-10 checksum.	Not declared	Not declared	Not declared	Not declared
`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).	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).	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Sep 16, 2026
Updated: Sep 16, 2026
Website: https://mcp.casuyi.com/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): E-commerceSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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