Markdown to HTML API

io.github.Br0ski777Published by GitHub account Br0ski777v1.1.0Updated Oct 27, 2026

Convert markdown to clean HTML with headings, lists, code blocks. x402 micropayment.

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Overview

AI-generated overview

Remote MCP endpoint that converts Markdown text into clean HTML, with optional full-document wrapping, paid per call via x402.

What you can do
  • Convert Markdown text to clean HTML, including headings, lists, code blocks, tables, links and images
  • Return the converted HTML in a JSON response with input and output lengths
  • Optionally wrap the output in a complete HTML document
When to use it
Useful when an assistant needs to render Markdown as HTML for web apps, README conversion, documentation pages or email templates, and a paid per-call service is acceptable. It is not for HTML-to-Markdown, themed rendering or PDF generation.
Requirements
A remote MCP endpoint reached over SSE; no API key, signup or environment variables are declared. Calls are paid per use through x402 in USDC on Base L2, so an x402-capable client and a funded wallet are needed to settle the 402 payment challenge.
Before you install
Each conversion costs money ($0.003 per call per the README) and is settled in USDC on Base through a crypto wallet, so spending is involved. Markdown sent to the service leaves your machine and goes to a third-party endpoint. The README also points to other paid APIs in the same marketplace.

Installation

In SourceWeft

  1. Open Markdown to HTML API in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via SSE. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.Br0ski777%2Fmarkdown-to-html/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "markdown-to-html-api": {
      "type": "sse",
      "url": "https://markdown-to-html.api.klymax402.com/mcp"
    }
  }
}

README

Markdown to HTML API

[MCP Server] [x402] [License: MIT]

Convert Markdown to clean HTML -- headings, lists, code blocks, tables, links, images. Optional full document wrap. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

json
{  "mcpServers": {    "markdown-to-html": {      "url": "https://markdown-to-html.api.klymax402.com/mcp"    }  }}

Quickstart -- HTTP (x402)

bash
curl -X POST "https://markdown-to-html.api.klymax402.com/api/convert" \  -H "Content-Type: application/json" \  -d '{"markdown":"..."}'# -> 402 Payment Required, with an x402 payment challenge in the response body

Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.

Tools

ToolMethodPathPriceDescription
text_convert_markdown_to_htmlPOST/api/convert$0.003Convert markdown text to HTML

text_convert_markdown_to_html

Use this when you need to convert Markdown text to clean HTML. Returns the converted HTML in JSON.

Parameters

NameTypeRequiredDescription
markdownstringyesMarkdown text to convert
wrapInDocumentbooleannoWrap output in full HTML document (default: false)

Example response:

json
{"html":"<h1>Hello World</h1>\n<p>This is <strong>bold</strong> and <em>italic</em>.</p>","inputLength":42,"outputLength":68}

When to use: rendering markdown content in web apps, converting README files, building documentation pages, and email template generation from markdown.

Not for: HTML to markdown (use text_convert_html_to_markdown), styled HTML with CSS themes (use text_render_markdown), PDF generation (use document_generate_pdf).

Example agent prompts

  • "Convert Markdown text to clean HTML"

Payment

  • Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
  • Network: Base L2 (eip155:8453)
  • Asset: USDC
  • Facilitator: Coinbase CDP (primary), PayAI (fallback)
  • Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)

Part of klymax402

100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.

License

MIT

Source: README.md at commit 16cc02a

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.1.0LatestSep 16, 2026

Score

50% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declaredRequired10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts