Niconico video comments

Returns comments on Niconico videos, the Japanese video site known for comments that scroll over the video. Pass video links or IDs and get comments from the uploader, community and easy-comment tracks. Useful for studying audience reaction at specific moments of a video and for Japanese anime, music and game fan research.

What you get

• Comment text and comment number
• Comment track: owner, community or easy comments
• Video position the comment was posted at
• Post time
• Display commands such as position, size and color
• Author ID and premium status
• Nicoru (like) count
• Video title, upload date and total comment count

What it can do

• Collect comments from several videos in one run
• Accept video links, short links, prefixed IDs and legacy numeric IDs
• Cover all three comment tracks for each video
• Line up comments with the moment in the video they refer to

Limits

• Up to 738 results per run
• Only publicly visible data, as shown to signed-out viewers
• One video per entry; playlist, series, user, channel and tag pages are not accepted
• The video's total comment count can be higher than the comments returned
• Easy comments carry a hashed author ID

Input options

Example

Ask your AI for the data in plain words and it picks this source. Developers can also call source procli_niconico_a directly through the REST API or MCP with an input like this:

{
  "startUrls": [
    {
      "url": "https://www.nicovideo.jp/watch/sm15751190"
    }
  ],
  "videoIds": []
}

How to use it

1. Create an account at prolevelmax.com. New users receive $1 in sign-up credit after verifying their email (one per person). No card required.
2. Connect your AI. In the Dashboard, open Get started → Coding tools and API → Generate setup instructions and paste the instructions into your AI (Claude, ChatGPT, Cursor, Codex and others). You can also add the MCP server https://prolevelmax.com/mcp or call the REST API.
3. Request data. Your AI selects a source, quotes the price and runs it only after you confirm. Results are returned as structured JSON that the AI can format as a table or report.

FAQ

All Niconico sources and prices