MCP.Market

MarkView MCP server

by paulhkang94·io.github.paulhkang94/markview·v1.7.2·38 stars
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Native macOS markdown preview with MCP server for Claude Code. Swift/SwiftUI, no Electron.

B72/100grade B
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Safety scan
B72/100

full report

Adoption
Growing

38 stars107 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

MarkView tools (9, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • get_changed_files

    List all changed files in a git repository (staged, unstaged, and untracked).

  • get_word_count

    Count words, characters, lines, and estimated tokens in markdown content.

  • lint_content

    Lint raw markdown content using MarkView's built-in linter. Returns line-by-line

  • lint_file

    Lint a markdown file using MarkView's built-in linter. Returns line-by-line

  • open_file

    Open an existing markdown file from disk in MarkView.

  • outline

    Extract the heading tree from markdown content. Returns a JSON array of headings

  • preview_markdown

    Render a markdown string in MarkView's native macOS preview window.

  • render_diff_filewrite action

    Run git diff on a repository and render the output in MarkView with diff2html

  • render_diff_raw

    Render a raw unified diff string in MarkView with diff2html syntax highlighting.

Public scan report

scanner v0.1.10 · 2026-11-01 · same rubric, same numbers if you re-run it

2 medium
  • Code scan2 source files scanned15/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 49 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (2)

  • mediumnpm install lifecycle script presentinstall.script
  • mediumnpm install lifecycle script presentinstall.script
    package.json: …ulhkang94/markview", "scripts": { "postinstall": "node scripts/postinstall.js" }, "f…
Overall 72/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How MarkView compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
72/100
higher than 38% of 48,255 servers
Tools
9
the typical server has 7
Tools that change things
11%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
38
more than 93% of 28,688 servers
Downloads a week
107
more than 64% of 12,191 servers with a package

What its tools let an agent do: 7 read · 1 create · 1 change

Install MarkView in Claude Code, Cursor or VS Code

Runs npx -y mcp-server-markview on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add markview -- npx -y mcp-server-markview
Add to Cursor

What the publisher says

From the MarkView repository's README, as published. We do not edit it. Read it on GitHub

MarkView

&color=green)

Native macOS markdown preview with MCP server for Claude Code. Claude writes markdown — MarkView renders it live, in a real native window, while you work.

Versions: The macOS app (app badge) and the npm MCP wrapper (npm badge) are versioned independently. App releases happen when the Swift binary changes; npm patches happen for MCP server improvements. Both badges always show the latest of each.

Quick Start — Claude Code

One command to wire MarkView into every Claude Code session:

claude mcp add --transport stdio --scope user markview -- npx mcp-server-markview

That's it. Claude can now call previewmarkdown to render any markdown string in a native macOS window, or openfile to open any .md file directly.

Claude Desktop Setup

Add to ~/Library/Application Support/Claude/claudedesktopconfig.json:

{
  "mcpServers": {
    "markview": {
      "command": "npx",
      "args": ["mcp-server-markview"]
    }
  }
}

Note: MCP servers belong in ~/.claude.json (Claude Code) or claudedesktopconfig.json (Claude Desktop), not ~/.claude/settings.json.

Installation

Homebrew (recommended)

# Full .app with Quick Look extension — Apple notarized, Gatekeeper approved
brew install --cask paulhkang94/markview/markview

# CLI only (builds from source)
brew tap paulhkang94/markview
brew install markview

Build from source

Prerequisites: macOS 14+, Swift 6.0+ (Xcode Command Line Tools)

git clone https://github.com/paulhkang94/markview.git
cd markview
swift build -c release

Install as app (Open With support)

bash scripts/bundle.sh --install

Creates MarkView.app in /Applications and registers it with Launch Services for right-click > Open With in Finder. Refuses (unless you pass --force) if a Dock tile is pinned to a build/ or repo-root MarkView.app path, since both are ephemeral dev output.

Install CLI

bash scripts/install-cli.sh

Creates mdpreview and md symlinks in ~/.local/bin/.

Usage

CLI

mdpreview README.md       # Open a file
mdpreview                 # Open empty editor

Finder

Right-click any .md, .markdown, .mdown, .mkd file > Open With > MarkView

Programmatic

open -a MarkView README.md

Features

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

MarkView: common questions

Is MarkView MCP server safe?
Mostly: it is graded B (72/100). Read the MarkView safety report
How do I install MarkView?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does MarkView need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is MarkView maintained?
The last commit was 52 days ago (2026-09-13). The latest release is v1.7.2.
How does MarkView compare with other MCP servers?
safety score 72/100 (higher than 38% of 48,255 servers); tools 9 (the typical server has 7); tools that change things 11% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.