io.github.appvantagelabs2-a11y/barcode

Barcode Tools (decode, render, GTIN validate)

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

Endpointhttps://mcp.casuyi.com/mcp (streamable-http)
Registry version1.0.2
Now4 tools · grade A (99) · pin ts_7484ca95e3f732762f666d5a914d2dc1 · protocol 2025-06-18
First / last listed2026-11-01 02:46 UTC / 2026-11-01 02:46 UTC
Grade over time2026-11-01: A (99), 4 tools

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Timeline

First listing · 2026-11-01 02:46 UTC
4 tools, grade A (99)

Tools: decode_barcode render_barcode validate_gtin list_formats

Current tools (4)

decode_barcodeDetect 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.
params: image_base64*, formats
render_barcodeRender 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.
params: text*, format*, scale
validate_gtinCheck 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).
params: code*
list_formatsStatic table of supported barcode formats with render/decode support and notes.
params: none

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