# SiteSignal QR Code Generator

> SiteSignal QR Code Generator is a paid API for AI agents from trinity-throw-thursday-gravity.trycloudflare.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Generates a QR code from text, a URL, wallet address, or payment URI, returning either a PNG in base64 or an inline SVG.

## Facts

- Endpoint: POST https://trinity-throw-thursday-gravity.trycloudflare.com/v1/qr
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-qr-code-generator-a686c398
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7qz6kWsrbaK5ExhhrX-SQ

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-a686c398 -d '<json body>'
```

Example prompt: Generate a QR code for https://mystore.example.com and give it back to me as an inline SVG so I can embed it on my checkout page.

## When to prefer this

Choose this endpoint when you need to programmatically generate a QR code from a URL, text, crypto wallet address, or payment URI and require the result as either a base64 PNG or inline SVG — especially in agentic workflows where downstream tools need embeddable image data rather than a file download.

## Known failure modes

- Invalid or malformed input string returns an error
- Unsupported output format requested
- Input text too long to encode in a standard QR code
- Service temporarily unavailable due to Cloudflare tunnel issues
- Payment not processed (x402 payment required errors)

## Output

A QR code image encoding the provided input, returned either as a base64-encoded PNG string or an inline SVG string, ready for embedding in HTML, printing, or displaying in a UI.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-qr-code-generator-a686c398/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from trinity-throw-thursday-gravity.trycloudflare.com](https://www.zero.xyz/host/trinity-throw-thursday-gravity.trycloudflare.com/llms.txt)