How is the character count calculated?

The engine uses a weighted system: Chinese characters count as 1, English letters count as 0.5, and emojis count as 2 to reflect visual density on the platform.

What does the CTR score represent?

The CTR score is an estimate of engagement probability based on keyword presence, emoji usage, and how close the title is to the optimal visual weight of 15-20 units.

Can I check the keyword density of an existing title?

Yes, you can use the `analyze_keyword_density` tool to calculate the ratio of matched target keywords within any title string.

Xiaohongshu (RED) Title Optimizer MCP Connector for Claude

A+

Transform base headlines into viral Xiaohongshu titles using weighted character counts and keyword density rules.

3 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides a deterministic engine to optimize headlines specifically for the Xiaohongshu (RED) platform. It uses a unique weighted character count (Chinese=1, English=0.5, Emoji=2) to ensure optimal visual density. The engine applies viral formatting rules, including mandatory hooks and emotive punctuation, while calculating a CTR score based on keyword density and visual weight. Use optimize_title to generate high-engagement headlines, analyze_keyword_density to measure keyword integration, or calculate_visual_weight to check visual length.

xiaohongshuredtitle-optimizationviral-contentmarketing-tools

Connect to Claude

Subscribe on Vinkius, then add this connector to Claude.ai or Claude Code.

① Claude.ai (web app)

Go to Settings → Connectors → Add custom connector
Paste the MCP endpoint URL below

https://edge.vinkius.com/vk_preview_m7NpRmITjc4QLda1GdsZfcDCovvO73QFbvF4JhpA/mcp

② Claude Code (terminal)

claude mcp add --transport http xiaohongshu-red-title-optimizer https://edge.vinkius.com/vk_preview_m7NpRmITjc4QLda1GdsZfcDCovvO73QFbvF4JhpA/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "xiaohongshu-red-title-optimizer": {
      "url": "https://edge.vinkius.com/vk_preview_m7NpRmITjc4QLda1GdsZfcDCovvO73QFbvF4JhpA/mcp"
    }
  }
}

Get full access on Vinkius

The preview token above works for testing. Powered by Vinkius.

Details

Tools: 3
Grade: A+
Score: 100/100
Updated: Oct 1, 2026

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