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Agent402 Markdown to HTML Converter
x402
Agent402 Markdown to HTML 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 a Markdown string to HTML using the CommonMark-compliant marked library.
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
Returns an HTML string rendered from the provided Markdown source using the marked library with CommonMark compliance, including proper heading tags, paragraph tags, links, bold/italic, lists, and code blocks.
Example use cases
Render blog post draft as HTML
“I've written my blog post in markdown — can you convert it to HTML so I can paste it into my CMS? Here's the content: '## My Trip to Iceland\n\nIt was **incredible**. The Northern Lights were [breathtaking](https://example.com/photos).'”
Generate email newsletter HTML
“Turn this markdown newsletter draft into HTML for me: '# Weekly Update\n\n- New feature launched\n- Bug fixes\n\nThanks for reading!'”
Convert README for web display
“I need the HTML version of this README markdown so I can embed it on a webpage: '# My Project\n\nInstall with `npm install my-project`. See the [docs](https://docs.example.com) for more.'”
Technical details
Endpoint
POSThttps://agent402.co.uk/v1/utils/markdown/to-htmlWhen to prefer
Choose this endpoint when you need a lightweight, fast, pay-per-call Markdown-to-HTML conversion without setting up your own rendering pipeline. It uses the widely-adopted marked library with CommonMark compliance, making it ideal for automating document rendering in agent workflows where you need HTML output from markdown content at low cost ($0.001 per call).
Side effects
- Missing or empty markdown field returns a validation error
- Malformed JSON request body returns a 400 error
- Very large markdown inputs may be rejected or time out
- Network or server errors return 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| markdown | string | Markdown source |
Output
Schema · Response
{
"type": "json",
"example": {
"html": "<h1>Hi</h1>\n"
}
}Tags
x402
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