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Markdown Renderer API

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sseMITupdated 1mo ago

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.

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What can you do with Markdown Renderer API?

Markdown Renderer API

MCP Server x402 License: MIT

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

Tool Method Path Price Description
text_render_markdown POST /api/render $0.005 Render 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

Name Type Required Description
markdown string yes Markdown text to render
theme string no CSS 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