QR Code Generator API

br0ski777/qr-code-x402

Generates QR codes on demand via a remote API endpoint. You pass in text or a URL through the MCP tool interface, and it returns a base64-encoded PNG you can display or save. Runs as a hosted service at qr-code.api.klymax402.com with server-sent events transport, so there's nothing to install locally. Uses x402 micropayments, meaning you'll need credits to generate codes. The repository itself is pretty bare, just the integration layer without much documentation visible. Reach for this when you need programmatic QR code generation in a Claude workflow without spinning up your own encoding library, though you'll want to check pricing and rate limits before committing to it for high-volume use cases.

tool

1

transport

SSE

last updated

May 16, 2026

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{
  "mcpServers": {
    "qr-code": {
      "url": "https://qr-code.api.klymax402.com/mcp"
    }
  }
}

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