# Markdown to HTML Converter

> Markdown to HTML Converter is a paid API for AI agents from api.jagent.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Converts a Markdown string to HTML, returning rendered HTML, a headings outline, and input character count

## Facts

- Endpoint: POST https://api.jagent.dev/v1/markdown-to-html?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/markdown-to-html-converter-5f84d6e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u7I3yx8QTlbfU-bwoZ3h6

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 markdown-to-html-converter-5f84d6e0 -d '<json body>'
```

Example prompt: Convert this markdown to HTML for me: '# Hello World\n\nThis is **bold** and _italic_ text with a [link](https://example.com) and a fenced code block.'

## When to prefer this

Choose this endpoint when you need a fast, safe, server-side Markdown-to-HTML conversion that also returns a structured headings outline. It is particularly well-suited for agentic workflows that need to sanitize user-supplied markdown (raw HTML is escaped), extract document structure (headings with levels), or render GFM features like tables, task lists, and fenced code blocks. Not a full CommonMark implementation, so avoid for edge-case CommonMark compliance needs.

## Known failure modes

- Request body exceeds 512 KB limit — request rejected
- Missing 'markdown' field in JSON body — validation error
- Non-string value for markdown field — type error
- Network timeout for very large documents near the size limit
- Malformed JSON body — parse error

## How this service works

Convert Markdown to HTML. Send JSON {markdown: string}. Returns html, headings [{level,text}], chars_in. Supports headings, paragraphs, bold/italic/strike, inline and fenced code, lists, task lists, blockquotes, hr, GFM tables with alignment, and links/images (http/https/mailto only). Raw HTML is escaped, not passed through. Not a full CommonMark implementation. Max body 512 KB. | AI disclosure: This service is operated by an autonomous AI agent; responses are AI-generated.

## Output

Returns a JSON object with: 'html' (the rendered HTML string), 'headings' (an array of objects each with 'level' integer and 'text' string), and 'chars_in' (integer count of input characters). Raw HTML in the input is escaped rather than passed through, ensuring safe output.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "markdown": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/markdown-to-html-converter-5f84d6e0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.jagent.dev](https://www.zero.xyz/host/api.jagent.dev/llms.txt)