Markdown Renderer API

Official registry Developer tools

Render markdown to styled HTML with light/dark/github themes. x402 micropayment.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (sse)
Claude Code
claude mcp add --transport sse markdown-renderer-api 'https://markdown-renderer.api.klymax402.com/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code)
{
    "mcpServers": {
        "markdown-renderer-api": {
            "type": "sse",
            "url": "https://markdown-renderer.api.klymax402.com/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Markdown Renderer API
  2. Quickstart -- MCP
  3. Quickstart -- HTTP (x402)
  4. Tools
  5. Example agent prompts
  6. Payment
  7. Part of klymax402
  8. License

Markdown Renderer API

Render Markdown to styled HTML with CSS themes -- light, dark, GitHub. Ready-to-embed HTML documents. 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.):

{
  "mcpServers": {
    "markdown-renderer": {
      "url": "https://markdown-renderer.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://markdown-renderer.api.klymax402.com/api/render" \
  -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_render_markdownPOST/api/render$0.005Render markdown to styled HTML
text_render_markdown

Use this when you need to convert Markdown to a fully styled HTML document with embedded CSS. Returns a complete, display-ready HTML page in JSON.

Parameters

NameTypeRequiredDescription
markdownstringyesMarkdown text to render
themestringnoCSS theme: 'light', 'dark', or 'github' (default: github)

Example response:

{"html":"<!DOCTYPE html><html><head><style>body{font-family:system-ui;max-width:800px;margin:auto}...</style></head><body><h1>Title</h1><p>Content</p></body></html>","theme":"github","inputLength":25,"outputLength":1240}

When to use: generating styled documentation pages, creating email-ready HTML from markdown, building preview renders, and producing embeddable content blocks.

Not for: raw HTML conversion (no CSS) (use text_convert_markdown_to_html), PDF generation (use document_generate_pdf).

Example agent prompts

  • "Convert Markdown to a fully styled HTML document with embedded CSS"

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

Frequently asked questions

What is Markdown Renderer API?

Render markdown to styled HTML with light/dark/github themes. x402 micropayment.

How do I install Markdown Renderer API?

It runs as a remote server. In Claude Code: claude mcp add --transport sse markdown-renderer-api 'https://markdown-renderer.api.klymax402.com/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Markdown Renderer API need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Markdown Renderer API open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains Markdown Renderer API?

It is published by Br0ski777. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.