# Superhighway QR Code Generator

> Superhighway QR Code Generator is a paid API for AI agents from superhighway.walls.sh, paid per call via x402, $0.001/call, status down (last checked 2026-10-10).

Encodes text or a URL into a QR code image

## Facts

- Endpoint: GET https://superhighway.walls.sh/qr?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/superhighway-qr-code-generator-fed7f055
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yjp1Z8aLOnNlHSB-q0x4G

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 superhighway-qr-code-generator-fed7f055
```

Example prompt: Generate a QR code for https://example.com so I can put it on my flyer.

## When to prefer this

Use this endpoint when you need to quickly generate a QR code from a URL or short text string on a pay-per-call basis with no subscription required. Prefer this over heavier QR libraries when you want a hosted, serverless solution.

## Known failure modes

- Missing required 'data' field returns an error
- Invalid or unsupported format value may return a format error
- Overly long input strings may exceed encoding limits
- Network timeout if the service is temporarily unavailable

## How this service works

Web search built for AI agents. Search the live web, pull recent news, and read any page as clean markdown — pay per call, free tier to start.

## Output

A QR code image encoding the provided text or URL, optionally in a specified format, ready to be scanned or embedded.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "data"
 ],
 "properties": {
  "data": {
   "type": "string",
   "description": "Text or URL to encode."
  },
  "format": {
   "enum": [
    "svg",
    "dataurl"
   ],
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/superhighway-qr-code-generator-fed7f055/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from superhighway.walls.sh](https://www.zero.xyz/host/superhighway.walls.sh/llms.txt)