{
  "markdown": "# QR Code Generator API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://qr-code.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 QR codes from text or URLs -- base64 PNG output, configurable size. Fast and lightweight. 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    \"qr-code\": {\n      \"url\": \"https://qr-code.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl -X POST \"https://qr-code.api.klymax402.com/api/qr\" \\\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_qr_code` | POST | `/api/qr` | $0.003 | Generate a QR code image from text or URL |\n\n### `utility_generate_qr_code`\n\nUse this when you need to generate a QR code from text, a URL, or any string data. Returns base64 image data in JSON.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `data` | string | yes | The text or URL to encode in the QR code |\n| `size` | number | no | QR code size in modules (default: 21 for version 1) |\n\nExample response:\n\n```json\n{\"data\":\"https://example.com\",\"image\":\"iVBORw0KGgo...\",\"width\":210,\"height\":210,\"format\":\"png\"}\n```\n\n**When to use**: generating shareable links, payment QR codes, Wi-Fi connection codes, vCard contact sharing, and event ticket barcodes.\n\n**Not for**: screenshots (use `capture_screenshot`), PDFs (use `document_generate_pdf`).\n\n## Example agent prompts\n\n- \"Generate a QR code from text, a URL, or any string data\"\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",
  "bytes": 2859,
  "sha": "b6a9fe4d1b58d1478c85ef757eb8d90c053078573bbf0102223b3214956b03c9",
  "repo_slug": "br0ski777/qr-code-x402",
  "fonte": "repo",
  "truncated": false,
  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_qr_code_d5dd6022/readme"
}