Skip to main content
Glama

barcode-scanner-mcp

MCP server for scanning and generating barcodes and QR codes.

Use Cases

Decode a barcode from a photo: "What does this barcode say?" → reads the image, detects the barcode format, and returns the decoded text.

Generate a QR code: "Create a QR code for https://example.com" → generates a PNG QR code image with configurable error correction.

Create shipping labels: "Generate a Code 128 barcode for tracking number 1Z999AA10123456784" → produces a barcode image in the specified format.

Verify printed barcodes: "Scan this product barcode and look up the item" → decodes the barcode and returns the text for further lookup.

Related MCP server: mcp-scan-qr

Setup

Follow the instructions on install-mcp, which generates the right config for your MCP client (Claude Code, Claude Desktop, Cursor, Cline, VS Code, and more).

Tools

Tool

Description

decode_image

Decode a barcode or QR code from an image file or base64 data

generate_qr

Generate a QR code PNG from text or a URL

generate_barcode

Generate a barcode PNG in 25+ formats (Code 128, EAN-13, UPC-A, etc.)

Contributing

Pull requests are welcomed on GitHub! To get started:

  1. Install Git and Node.js

  2. Clone the repository

  3. Install dependencies with npm install

  4. Run npm run test to run tests

  5. Build with npm run build

Releases

Versions follow the semantic versioning spec.

To release:

  1. Use npm version <major | minor | patch> to bump the version

  2. Run git push --follow-tags to push with tags

  3. Wait for GitHub Actions to publish to the NPM registry.

Available Tools

3 tools
decode_imageDecode barcode/QR codeA
Read-only

Decode barcodes and QR codes from a base64-encoded image. Returns all codes found. Supports QR, EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, ITF, Codabar, and PDF 417. Handles noisy real-world photos by trying multiple preprocessing approaches.

Inputs: image (required), format_hint. Returns: codes

generate_barcodeGenerate barcodeA
Read-only

Generate a barcode image in various formats. Returns a PNG image. Supported formats: code128, code39, code93, ean13, ean8, upca, upce, itf14, interleaved2of5, isbn, issn, ismn, datamatrix, pdf417, azteccode, gs1-128, pharmacode, codabar, msi, plessey, postnet, onecode, royalmail, code11, code49.

Inputs: text (required), format (required), scale, height, +1 more.

generate_qrGenerate QR codeA
Read-only

Generate a QR code image from text or a URL. Returns a PNG image.

Inputs: text (required), scale, error_correction.

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

Loading tool schema changelog…

    TDQS

    A4.2/5.0

    Scored across 3 tools

    Disambiguation5/5

    Each tool has a clearly distinct purpose: decoding images, generating QR codes, and generating barcodes. There is no overlap or ambiguity between the tools.

    Naming Consistency5/5

    All tool names follow a consistent verb_noun pattern: decode_image, generate_qr, generate_barcode. The naming is uniform and predictable.

    Tool Count5/5

    With only 3 tools, the server is well-scoped and every tool serves a necessary core function in barcode/QR handling. The count is ideal for the domain.

    Completeness5/5

    The server provides both decoding and generation capabilities for barcodes and QR codes, covering the primary lifecycle of barcode operations. No obvious gaps exist within the stated purpose.

    Maintenance

    ActivityActive
    ResponsivenessNo recent community issues

    Related MCP Connectors

    Related MCP Servers

    • A
      license
      Not graded
      quality
      D
      maintenance
      An advanced MCP server for generating styled QR codes with logos, batch processing, and specialized formats like WiFi or vCards. It also provides tools to decode existing QR code images and analyze their quality or content.
      MIT
    • A
      license
      Not graded
      quality
      D
      maintenance
      An MCP server that provides tools for scanning and extracting data from QR codes using single or multiple image URLs. It supports both individual and batch processing to retrieve encoded information from images hosted online.
      13 npm
      MIT
    • A
      license
      Not graded
      quality
      C
      maintenance
      MCP server for looking up EAN/UPC barcodes to get localized product details like title, description, price, and images.
      8 npm
      1
      MIT