Barcode Tools (decode, render, GTIN validate)
io.github.appvantagelabs2-a11y/barcode · v1.0.2 · MCP 2026-07-28
Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.
Reachability
reachable
checked 2026-09-20 05:31 UTC
Registry status active
Tools pinned 4
cc69551150fa
Tools last changed
2026-09-17
Provenance
Registry namespace io.github.appvantagelabs2-a11y
(GitHub-account verified by the official registry)
Website
https://mcp.casuyi.com/
Remote endpoints
https://mcp.casuyi.com/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-09-17 05:31 | tools changed | 0 added, 0 removed, 4 changed |
| 2026-09-16 05:30 | first capture | 4 tools pinned |
Pinned tool definitions (4)
| Tool | Description |
|---|---|
| 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,... |
| 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... |
| 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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