# SignalDesk AI HTML-to-Markdown Converter

> SignalDesk AI HTML-to-Markdown Converter is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-13).

Converts caller-supplied HTML into clean Markdown text server-side, without executing any scripts.

## Facts

- Endpoint: POST https://x402-agent.kariguetoazul.workers.dev/api/web/html-markdown?utm_source=zero.xyz
- Price: $0.002/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-to-markdown-converter-594dda52
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w6Ns_nPjAIYdrZtNmgTrd

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-to-markdown-converter-594dda52 -d '<json body>'
```

Example prompt: Convert this HTML snippet I scraped into clean Markdown for me — here's the HTML: '<h1>Title</h1><p>Hello <strong>world</strong>.</p><ul><li>one</li><li>two</li></ul>'. No scripts will be run on it.

## When to prefer this

Choose this endpoint when you have a raw HTML string (up to 12,000 characters) that needs to be converted to Markdown server-side without script execution risk. Useful in agent pipelines that scrape web content and need clean Markdown for downstream LLM processing, documentation generation, or readable storage. Prefer this over client-side HTML parsers when you need a sandboxed, pay-per-call microservice with no infrastructure overhead.

## Known failure modes

- HTML string exceeds 12,000 character limit — request rejected
- Malformed or missing 'html' field in request body — validation error
- Payment not provided or insufficient (x402 payment required, $0.002 USDC) — 402 response
- Server-side worker timeout or execution quota exceeded — 5xx 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

Returns a JSON object containing a 'markdown' field with the converted Markdown string, plus an 'untrusted_content' flag set to true indicating the output originates from caller-supplied HTML and should be treated as untrusted content downstream.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "html": {
   "type": "string",
   "maxLength": 12000,
   "description": "Caller-supplied HTML; no script is executed."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "markdown": "# Title\n\nHello **world**.\n\n- one\n\n- two",
  "untrusted_content": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-html-to-markdown-converter-594dda52/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)