{
  "markdown": "# Barcode Generator API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://barcode-generator.api.klymax402.com/mcp)\n[![x402](https://img.shields.io/badge/payments-x402-6E56CF)](https://x402.org)\n[![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE)\n\nGenerate 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.\n\nPart of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.\n\n## Quickstart -- MCP\n\nAdd to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):\n\n```json\n{\n  \"mcpServers\": {\n    \"barcode-generator\": {\n      \"url\": \"https://barcode-generator.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl -X POST \"https://barcode-generator.api.klymax402.com/api/barcode\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"data\":\"...\"}'\n# -> 402 Payment Required, with an x402 payment challenge in the response body\n```\n\nAny 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.\n\n## Tools\n\n| Tool | Method | Path | Price | Description |\n|---|---|---|---|---|\n| `utility_generate_barcode` | POST | `/api/barcode` | $0.003 | Generate a barcode from text or number |\n\n### `utility_generate_barcode`\n\nUse this when you need to generate a barcode from text or a number. Returns base64-encoded SVG image in JSON.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `data` | string | yes | Data to encode in the barcode |\n| `format` | string | no | Barcode format: code128, code39, ean13, upca (default: code128) |\n| `width` | number | no | Bar width in pixels (default: 2) |\n| `height` | number | no | Barcode height in pixels (default: 100) |\n\nExample response:\n\n```json\n{\"data\":\"5901234123457\",\"format\":\"ean13\",\"image\":\"PHN2ZyB4bWxu...\",\"width\":264,\"height\":142}\n```\n\n**When to use**: product labeling, inventory management, shipping labels, retail POS systems, and asset tracking barcodes.\n\n**Not for**: QR codes (use `utility_generate_qr_code`), image resizing (use `media_resize_image`), PDF generation (use `document_generate_pdf`).\n\n## Example agent prompts\n\n- \"Generate a barcode from text or a number\"\n\n## Payment\n\n- Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key\n- Network: Base L2 (`eip155:8453`)\n- Asset: USDC\n- Facilitator: Coinbase CDP (primary), PayAI (fallback)\n- Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata)\n\n## Part of klymax402\n\n100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.\n\n- Catalog: https://klymax402.com/llms.txt\n- Full API reference: https://klymax402.com/llms-full.txt\n- Live stats: https://klymax402.com/stats\n\n## License\n\nMIT\n",
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  "sha": "89d84380850d656acee95f7cb2ea24d44c19d8255af69cf665f332f518979a15",
  "repo_slug": "br0ski777/barcode-generator-x402",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_barcode_generator_cf6ccf59/readme"
}