# SignalDesk AI HTML Escape

> SignalDesk AI HTML Escape is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).

Escapes special HTML characters in a text string, converting them to safe HTML entities

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/encoding/html-escape?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-html-escape-f11b045a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BClhkIghga9jpyxz3sFRe

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 signaldesk-ai-html-escape-f11b045a -d '<json body>'
```

Example prompt: Escape this string so it's safe to put in HTML: '<a title="hi">&</a>' — convert all the special characters to HTML entities.

## When to prefer this

Choose this endpoint when you need a simple, reliable HTTP API to HTML-escape arbitrary text strings up to 4096 characters, especially in serverless or agent-driven pipelines where a local library is unavailable or inconvenient. Suitable for one-off or low-volume escaping tasks given the per-call micropayment cost.

## Known failure modes

- Input text exceeds 4096 character limit — request rejected
- Missing or empty 'text' field — may return error or empty escaped string
- Payment not included or insufficient — 402 Payment Required response
- Non-string input type for 'text' field — schema validation error

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object with an 'escaped' field containing the input text with all HTML special characters converted to their entity equivalents (e.g. < becomes &lt;, > becomes &gt;, & becomes &amp;, " becomes &quot;).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 4096,
   "description": "Text to process."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "escaped": "&lt;a title=&quot;hi&quot;&gt;&amp;&lt;/a&gt;"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-html-escape-f11b045a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)