# SiteSignal QR Code Generator

> SiteSignal QR Code Generator is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).

Generates a QR code from arbitrary text, URL, wallet address, or payment URI, returning it as PNG base64 or inline SVG.

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/qr
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-qr-code-generator-33287adc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LGmZovg7AKlREQq6I60OP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sitesignal-qr-code-generator-33287adc
```

Example prompt: Can you generate a QR code for https://myshop.example.com/checkout as a 400px SVG so I can paste it into my landing page?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call QR code generation without managing API keys — especially useful for encoding URLs, crypto wallet addresses, or payment URIs into embeddable PNG or SVG assets. Prefer it when you need inline SVG output or when cost per call ($0.001 USDC) matters more than a monthly subscription to a heavier QR service.

## Known failure modes

- Missing or empty 'data' parameter returns an error
- Data string exceeding 2000 characters is rejected
- Invalid 'format' value (not 'png' or 'svg') causes a validation error
- Size outside 50–1000 range is rejected
- Payment failure or x402 auth issue blocks the request
- Cloudflare tunnel unavailability yields a 5xx error

## How this service works

Generate a QR code from the data query parameter as PNG base64 or inline SVG.

## Output

Returns a QR code encoding the supplied data either as a base64-encoded PNG image or as inline SVG markup, at the requested pixel size (50–1000px, default 300px).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "data"
     ],
     "properties": {
      "data": {
       "type": "string",
       "maxLength": 2000,
       "minLength": 1,
       "description": "Text, URL, wallet address, or payment URI to encode."
      },
      "size": {
       "type": "integer",
       "default": 300,
       "maximum": 1000,
       "minimum": 50
      },
      "format": {
       "enum": [
        "png",
        "svg"
       ],
       "type": "string",
       "default": "png"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-qr-code-generator-33287adc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)