Barcode Scanner

io.github.domdomeggPublished by GitHub account domdomeggv1.2.0Updated Nov 3, 2026

Scan and generate barcodes and QR codes.

VerifiedSTDIODesktop onlyDeveloper Tools Media & Design

Server details

Identifier: io.github.domdomegg/barcode-scanner-mcp
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

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Overview

AI-generated overview

Local MCP server that lets an assistant decode barcodes and QR codes from images and generate QR code or barcode PNGs.

What you can do: Decode a barcode or QR code from an image file or base64 data, returning the decoded text and detected format
Generate a QR code PNG from text or a URL, with configurable error correction
Generate a barcode PNG in 25+ formats such as Code 128, EAN-13 and UPC-A
When to use it: Useful when you want an assistant to read a barcode or QR code from a photo, create QR codes for links, produce barcode images for shipping labels or tracking numbers, or verify printed codes before a lookup.
Requirements: Runs as a local process via npx from the npm package barcode-scanner-mcp over stdio; the MCP_TRANSPORT environment variable is required. No authentication is declared. Desktop-only; not available as a web executable.

Before you install

Images and base64 data you pass in are processed by the local server, so avoid sending sensitive documents or codes you would not want decoded. Generated images are written as PNG output; check where files are saved. No credentials or payments are involved.

Installation

In SourceWeft

Open Barcode Scanner in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

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.

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:

Install Git and Node.js
Clone the repository
Install dependencies with npm install
Run npm run test to run tests
Build with npm run build

Releases

Versions follow the semantic versioning spec.

To release:

Use npm version <major | minor | patch> to bump the version
Run git push --follow-tags to push with tags
Wait for GitHub Actions to publish to the NPM registry.

Source: README.md at commit 7470365

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v1.2.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
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Auth declared10 pts
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Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
License10 pts