How is the beat sync score calculated?

The `calculate_video_pacing` tool determines the score by checking if the total number of scene changes aligns perfectly with the rhythmic pulses of the background music's BPM.

Can I predict my video's completion rate?

Yes, by using `estimate_retention_performance`, you can get a predicted percentage of viewers who will watch your video to the end based on your pacing and hook metrics.

What is the recommended hook duration?

The tool follows the viral standard, recommending a fixed hook duration of 3.0 seconds to maximize initial viewer retention.

Douyin & TikTok Retention Calculator MCP Connector for Claude

A+

Analyze video pacing, beat synchronization, and hook effectiveness to estimate viewer retention.

2 tools Official Updated Oct 1, 2026 Official Vinkius Partner

More Details Connect to Claude

This MCP server provides deterministic tools to analyze short-form video pacing for platforms like Douyin and TikTok. Use calculate_video_pacing to evaluate visual rhythm, scene change frequency, and how well cuts align with the background music's tempo. Use estimate_retention_performance to predict the likely completion rate based on hook text length and the calculated pacing metrics. It helps creators optimize their visual stimulus and rhythmic synchronization to maximize audience attention.

douyintiktokretentionpacingvideo-editinganalytics

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_Z37xXJNr9jAVyBJ1MMmoUJViQ85XZX1XPjN62rOo/mcp

② Claude Code (terminal)

claude mcp add --transport http douyin-tiktok-retention-calculator https://edge.vinkius.com/vk_preview_Z37xXJNr9jAVyBJ1MMmoUJViQ85XZX1XPjN62rOo/mcp

③ Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "douyin-tiktok-retention-calculator": {
      "url": "https://edge.vinkius.com/vk_preview_Z37xXJNr9jAVyBJ1MMmoUJViQ85XZX1XPjN62rOo/mcp"
    }
  }
}

Get full access on Vinkius

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