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Agent402 HTML to Markdown Converter
x402
Agent402 HTML to Markdown Converter is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Converts an HTML fragment to Markdown text and returns an approximate token count for context management
Price / call$0.001
Success—
StatusDown
How this service works
Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.
Output
A JSON object with three fields: 'valid' (boolean indicating whether conversion succeeded), 'markdown' (the converted Markdown string), and 'approx_tokens' (an integer approximation of the token count of the resulting markdown).
Example use cases
Mid-task context window shrink
“I have a big HTML blob from a scraped page that I need to fit into my context window — can you convert it to markdown and tell me the approximate token count so I know if it'll fit?”
LLM-ready content extraction
“Take this HTML article fragment and convert it to clean markdown so I can feed it directly into my summarization step without all the tag noise.”
Token budget estimation before processing
“Before I send this HTML to the model, convert it to markdown and give me an approximate token count so I can decide whether to chunk it or send it whole.”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/utils/html/to-markdownWhen to prefer
Choose this endpoint when an agent needs a lightweight, pay-per-call HTML-to-Markdown conversion with an approximate token count included — especially useful mid-task for context window management. It is not a browser or renderer, so prefer it for static HTML fragments rather than JavaScript-heavy pages. Pair with text-metrics endpoints if precise token counts are required.
Side effects
- Malformed or non-HTML input may still be processed best-effort but 'valid' may be false
- Very large HTML fragments may produce inaccurate token counts
- Dynamic or JavaScript-rendered content won't be executed — only static HTML is parsed
- Deeply nested or exotic HTML structures may produce imperfect markdown
- Empty input string returns minimal or empty markdown
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| html | string | HTML fragment |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"markdown": "# Hi\n\nHello **world**",
"approx_tokens": 5
}
}Tags
x402
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