# Markdown to HTML Converter

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

Converts a Markdown string (headings, lists, links, code blocks, emphasis) to rendered HTML, with no network access required.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/md-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-6d5996cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HW9mtvN2_NVLNF7WfSQC7

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-6d5996cd -d '<json body>'
```

Example prompt: Convert this Markdown to HTML for me: '# Hello World\n\nThis is a **bold** paragraph with a [link](https://example.com) and a `code snippet`.'

## When to prefer this

Choose this endpoint when you need a fast, offline (no external network calls) Markdown-to-HTML conversion with deterministic output. It is well-suited for agent pipelines that process Markdown content programmatically and need rendered HTML without relying on a full browser or LLM. Prefer the free sandbox endpoint `/v1/sandbox/md-to-html` first; use this paid endpoint when the sandbox is unavailable or rate-limited.

## Known failure modes

- Empty or missing markdown field returns a validation error
- Markdown exceeding 100,000 characters is rejected
- Malformed JSON request body returns a parse error
- Payment not provided or insufficient USDC triggers a 402 Payment Required response

## How this service works

Call when an agent needs Markdown converted to HTML (headings, lists, links, code, emphasis). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/md-to-html first.

## Output

An HTML string rendered from the provided Markdown input, including proper tags for headings, lists, links, emphasis, code blocks, and other standard Markdown elements.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "markdown": {
   "type": "string",
   "examples": [
    "# Hello\n\nWorld"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Markdown source. Headings, lists, links, code, and emphasis are converted. No fetch."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/markdown-to-html-converter-6d5996cd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)