YouTube video comment replies API

Replies YouTube publishes under one comment, oldest first.

Ask your agent

“Call youtube/video/comment/replies with url https://example.com and comment_id ID and summarize what comes back.”

Works in any MCP client connected to https://data.openkrill.app/mcp. Install in one line.

Path: youtube/video/comment/replies
MCP tool: call_endpoint
Credits: 5
Cache: 5 min

Parameters

urlstring, required	Video URL
comment_idstring, required	Comment id from video/comments
limitinteger, optional	1-100 replies, default 20

Response

data.resources[] uses the same keys as every other platform: author, engagement, metadata, with YouTube-only fields under extras. A failed upstream call is never billed.

MCP tool call

{
  "name": "call_endpoint",
  "arguments": {
    "path": "youtube/video/comment/replies",
    "params": {
      "url": "https://example.com",
      "comment_id": "ID"
    }
  }
}

curl

curl "https://data.openkrill.app/v1/youtube/video/comment/replies?url=https%3A%2F%2Fexample.com&comment_id=ID" \
  -H "x-api-key: YOUR_API_KEY"

Response

{
  "success": true,
  "platform": "youtube",
  "endpoint": "youtube/video/comment/replies",
  "data": {
    "resources": [
      { "id": …, "title": …, "text": …, "url": …,
        "author": {…}, "engagement": {…},
        "metadata": {…}, "extras": {…} }
    ]
  },
  "credits_used": 5,
  "cached": false
}

YouTube video comment replies API

Ask your agent

Parameters

Response

More YouTube tools