RenderMark

Professional markdown rendering, export, and publishing via MCP. Use when user asks to "render markdown", "export to PDF", "convert to DOCX", "create a docum...

Convert markdown into beautiful, shareable documents — PDF, DOCX, HTML, images, and hosted web pages.

When to use RenderMark

Use these tools when the user needs styled output from markdown — not when they're just writing or editing markdown content.

Use RenderMark when:

• User wants to export, publish, or share a document
• User needs a visual preview (HTML, PDF, image) of markdown
• User wants to compare two document versions visually
• User asks to sync documentation from GitHub
• User needs batch export of multiple markdown files

Do NOT use RenderMark when:

• User is just writing or editing markdown (use normal text editing)
• User wants to run code or generate non-document output
• User needs general file format conversion unrelated to markdown
• Simple markdown preview without styling is sufficient

Instructions

Step 1: Choose the right tool for the task

User wants to...	Tool to use
Preview styled markdown	render_markdown
Export a file (PDF, DOCX, HTML)	export_markdown
Export multiple files at once	export_batch
Create a PNG/JPEG image	render_to_image
Publish to the web with a shareable link	publish_to_rendermark
Publish as a Google Doc	publish_to_google_docs
Share with specific people	share_document
Compare two versions	render_diff
Check markdown quality	validate_markdown
Import from GitHub	sync_from_github

Step 2: Apply themes and options

Four built-in themes are available: default (light, clean sans-serif), dark (dark background), serif (Georgia, academic), minimal (stripped-down).

Pass the theme parameter to any render/export tool. If the user doesn't specify a theme, use default.

Table of contents is included by default. Set showToc: false to disable.

Step 3: Verify output

• For export_markdown: Returns a file path. Confirm the file was saved.
• For publish_to_rendermark: Returns a URL. Share the link with the user.
• For render_to_image: Returns image data. Show or save as needed.

Step 4: Use markdown features effectively

RenderMark supports GitHub-flavored markdown plus these extensions:

• Mermaid diagrams: Fenced code blocks with language mermaid render as interactive diagrams
• KaTeX math: Inline $...$ and display $$...$$ for mathematical notation
• Syntax highlighting: All common programming languages
• Frontmatter: YAML frontmatter (title, theme, template, toc) is parsed and applied automatically
• Templates: report, meeting-notes, memo, letter, slides, changelog
• Task lists, footnotes, tables with alignment, and collapsible sections (<details>)

Step 5: Apply best practices

• Always include a title when publishing or exporting — extract from frontmatter, first # heading, or filename
• Default to showToc: true for documents longer than a few paragraphs
• Choose themes contextually: serif for formal documents, dark for technical docs, default for general use
• For GitHub READMEs, always pass the github context object ({ owner, repo, branch, path }) so relative image paths resolve correctly
• Prefer publish_to_rendermark over export_markdown when the user says "share" — a link is usually more convenient than a file
• Run validate_markdown first on important documents to catch broken links and structural issues before publishing

For full tool parameter details, see references/tools-reference.md.

Available Tools (16)

Tool	Description
render_markdown	Convert markdown to styled HTML with themes, TOC, syntax highlighting
render_to_image	Render markdown to PNG/JPEG — ideal for chat sharing (Slack, Discord)
render_diff	Visual redline diff between two markdown versions
export_markdown	Export to PDF, DOCX, or HTML file on disk
export_batch	Batch export multiple files (merged or individual zip)
validate_markdown	Check for broken links, malformed tables, structural issues
publish_to_rendermark	Publish to rendermark.app with a shareable URL
publish_to_google_docs	Publish as a Google Doc (requires OAuth setup)
share_live_preview	Generate a temporary preview link (1h to 7d expiry)
share_document	Share with specific emails via email-restricted access
read_document	Fetch document content and metadata by URL, slug, or ID
update_document	Update content, title, settings, or protection on a published document
list_documents	List documents with search, filtering, and pagination
delete_document	Permanently delete a document (requires explicit confirmation)
sync_from_github	Sync a markdown file from GitHub to RenderMark
setup_api_key	Authenticate via browser and save API key automatically

Examples

Example 1: Export a README to PDF

User says: "Export my README to PDF with the serif theme"

Actions:

1. Call export_markdown with format pdf, theme serif, and the markdown content
2. Return the file path to the user

Result: PDF file saved locally with serif styling, table of contents, and syntax highlighting.

Example 2: Publish and share a document

User says: "Publish this document and share it with my team"

Actions:

1. Call publish_to_rendermark with the markdown content and a title
2. Call share_document with the returned document ID and email addresses
3. Return the shareable URL

Result: Document published at a rendermark.app URL, sharing invites sent.

Example 3: Compare two versions

User says: "Show me the diff between the old and new version"

Actions:

1. Call render_diff with the old and new markdown content
2. Return the visual diff HTML

Result: Side-by-side styled diff highlighting additions, deletions, and changes.

Example 4: Batch export project docs

User says: "Export all the markdown files in this folder as PDFs"

Actions:

1. Gather all .md files and their contents
2. Call export_batch with the files array and format pdf
3. Return file paths

Result: All markdown files exported as individual PDFs in the same directory.

Example 5: Sync and publish a GitHub README

User says: "Sync my project's README from GitHub and publish it"

Actions:

1. Call sync_from_github with the owner, repo, and path (README.md)
2. Return the published URL to the user

Result: README imported from GitHub, published at rendermark.app with relative images resolved.

Example 6: Create a meeting notes document

User says: "Turn these notes into a proper meeting notes document and share it with the team"

Actions:

1. Call render_markdown with template meeting-notes to preview
2. Call publish_to_rendermark with the markdown and title
3. Call share_document with the document ID and team email addresses
4. Return the shareable URL

Result: Formatted meeting notes published and shared via email.

Setup

Install via npx -y @rendermark/mcp-server@latest. Requires a RenderMark API key from https://rendermark.app/settings/keys.

For detailed setup including PDF export, Google Docs, and troubleshooting, see references/setup-guide.md.

Troubleshooting

API key errors

Run setup_api_key to authenticate via the browser, or manually set the key in ~/.rendermark/config.json.

PDF export fails

PDF/image export requires Chrome or a Browserless API key. All other tools work without it.

Tool not found

Ensure you're running the latest version: npx -y @rendermark/mcp-server@latest

Links

• Website: https://rendermark.app
• npm: https://www.npmjs.com/package/@rendermark/mcp-server
• GitHub: https://github.com/jmsaavedra/rendermark