Back to search
100
MCP live MCP 2026-07-28 streamable-http

Barcode Tools (decode, render, GTIN validate)

io.github.appvantagelabs2-a11y/barcode

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

Watch this dependency Share evidence report
Uptime
80.0%
5 direct probes · 30d
Response
200ms
last probe
Tools
4
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://mcp.casuyi.com/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
4 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
4 items in total; 3 or more earns these points.
pass Describes itself 10/10
93 characters; more than 30 earns these points.

Tools · 4

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.

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://mcp.casuyi.com/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "barcode_tools_(decode,_render,_gtin_validate)": {
      "url": "https://mcp.casuyi.com/mcp",
      "transport": "streamable-http"
    }
  }
}