Barcode Generator API
Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.
Open source Repository Open in the app JSON README (API)
About
Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.
Details
- Kind
- MCP servers
- Topic
- Finance & crypto
- Publisher
- br0ski777
- Origin
- official
- Category
- ferramentas
- Transport
- sse
- Version
- 1.1.0
- Last push
- 2026-09-02T19:55:15Z
- Repository state
- ativo
- Language
- TypeScript
- License
- MIT
- Added
- 2026-08-29 03:01:43
- Updated
- 2026-08-29 03:01:43
- Origin id
io.github.Br0ski777/barcode-generator
README
# Barcode Generator API
[](https://barcode-generator.api.klymax402.com/mcp)
[](https://x402.org)
[](LICENSE)
Generate barcodes -- EAN-13, UPC-A, Code128, Code39. Base64 SVG output, custom width and height. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the [klymax402](https://klymax402.com) 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.):
```json
{
"mcpServers": {
"barcode-generator": {
"url": "https://barcode-generator.api.klymax402.com/mcp"
}
}
}
```
## Quickstart -- HTTP (x402)
```bash
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`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically.
## Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
| `utility_generate_barcode` | POST | `/api/barcode` | $0.003 | Generate 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**
| Name | Type | Required | Description |
|---|---|---|---|
| `data` | string | yes | Data to encode in the barcode |
| `format` | string | no | Barcode format: code128, code39, ean13, upca (default: code128) |
| `width` | number | no | Bar width in pixels (default: 2) |
| `height` | number | no | Barcode height in pixels (default: 100) |
Example response:
```json
{"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](https://x402.org) -- 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](https://atxp.ai) (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.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
## License
MIT