Koskamo

Barcode Tools MCP

Provides barcode tools for AI agents over the Model Context Protocol, including decoding, rendering, and validating barcodes such as QR, DataMatrix, EAN, UPC, and PDF417. All tools are free with no authentication required.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Barcode Tools MCP logo, by CasuyiCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by Casuyi
MCP endpoint (Streamable HTTP)
https://mcp.casuyi.com/mcp
Vendor documentation

What its tools do

4 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (4)

4 of 4 have a description · 0 of 4 declare behavior hints · 3 of 3 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Decode barcodes
  • Render barcodes
  • Validate GTINs

Source and maintenance

Community listingRegistry 1.0.2
mcp-registry: io.github.appvantagelabs2-a11y/barcode@1.0.2Project website

Protocol and capabilities

Server
barcode-mcp 0.3.0
MCP protocol negotiated in check
2025-11-25
Tools
4 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Tools

4 advertised

decode_barcode — Decode barcodes from an image
Advertised by the server during the last successful anonymous check.

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, Codabar. Use formats filter to restrict results.

decode_barcode input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "image_base64"
  ],
  "properties": {
    "formats": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional canonical format ids to keep, e.g. [\"qr\",\"ean13\"]"
    },
    "image_base64": {
      "type": "string",
      "description": "Base64-encoded image file bytes (no data: URI prefix)"
    }
  }
}
render_barcode — Render a barcode/QR to PNG
Advertised by the server during the last successful anonymous check.

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 zero-padded EAN-13). GTIN codes must have a valid mod-10 checksum.

render_barcode input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "text",
    "format"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "Payload to encode (digits for GTIN symbologies)"
    },
    "scale": {
      "type": "integer",
      "maximum": 12,
      "minimum": 2,
      "description": "Rasterization scale, default 6"
    },
    "format": {
      "type": "string",
      "description": "Symbology id: qr, aztec, datamatrix, code128, code39, code93, ean13, ean8, upca, itf, pdf417"
    }
  }
}
validate_gtin — Validate a GTIN/EAN/UPC code
Advertised by the server during the last successful anonymous check.

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).

validate_gtin input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "Candidate product code, digits only"
    }
  }
}
list_formats — List supported symbologies
Advertised by the server during the last successful anonymous check.

Static table of supported barcode formats with render/decode support and notes.

list_formats input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
1131 ms
95th percentile latency
1131 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 1131 ms · metadata changed · 4 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http barcode-tools-mcp https://mcp.casuyi.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add barcode-tools-mcp --url https://mcp.casuyi.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable barcode-tools-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "barcode-tools-mcp": {
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "barcode-tools-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.casuyi.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start barcode-tools-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "barcode-tools-mcp": {
      "type": "http",
      "url": "https://mcp.casuyi.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http barcode-tools-mcp https://mcp.casuyi.com/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://mcp.casuyi.com/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "barcode-tools-mcp": {
      "serverUrl": "https://mcp.casuyi.com/mcp"
    }
  }
}

Let your agent find its tools

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