English Français العربية

Barcode Generator API

Official registry Other

Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code 
claude mcp add --transport sse barcode-generator-api 'https://barcode-generator.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "barcode-generator-api": {
            "type": "sse",
            "url": "https://barcode-generator.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Barcode Generator API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Barcode Generator API

Generate barcodes -- EAN-13, UPC-A, Code128, Code39. Base64 SVG output, custom width and height. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "barcode-generator": {
      "url": "https://barcode-generator.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://barcode-generator.api.klymax402.com/api/barcode" \
  -H "Content-Type: application/json" \
  -d '{"data":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
utility_generate_barcodePOST/api/barcode$0.003Generate a barcode from text or number
utility_generate_barcode

Use this when you need to generate a barcode from text or a number. Returns base64-encoded SVG image in JSON.

Parameters

NameTypeRequiredDescription
datastringyesData to encode in the barcode
formatstringnoBarcode format: code128, code39, ean13, upca (default: code128)
widthnumbernoBar width in pixels (default: 2)
heightnumbernoBarcode height in pixels (default: 100)

Example response:

{"data":"5901234123457","format":"ean13","image":"PHN2ZyB4bWxu...","width":264,"height":142}

When to use: product labeling, inventory management, shipping labels, retail POS systems, and asset tracking barcodes.

Not for: QR codes (use utility_generate_qr_code), image resizing (use media_resize_image), PDF generation (use document_generate_pdf).

Example agent prompts

  • "Generate a barcode from text or a number"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Frequently asked questions

What is Barcode Generator API?

Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.

How do I install Barcode Generator API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse barcode-generator-api 'https://barcode-generator.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Barcode Generator API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Barcode Generator API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Barcode Generator API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.