YouTube · Guide

How to get YouTube comment replies

TL;DR

To get YouTube comment replies, sign up for a free Captapi key, then send one GET request to /v1/youtube/comment-replies with your input. You get clean JSON back in seconds for 20 credits per call — no OAuth, scraping or platform SDKs. Pull YouTube comments at scale with author, text, likes, and reply threads.

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How to get YouTube comment replies (step by step)

1
Get a free API key
Create a free Captapi account (100 credits, no card) and generate an API key from the dashboard.
2
Call the YouTube Comment Replies API
Send an authenticated GET request to /v1/youtube/comment-replies with your input. No OAuth, no scraping setup.
3
Read the JSON response
Parse the clean JSON response. Results are cached for 24 hours, so repeat calls are free.

Code example

curl "https://api.captapi.com/v1/youtube/comment-replies?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DdQw4w9WgXcQ&comment_id=7311234567890123456" \
  -H "Authorization: Bearer capt_live_..."

What the response looks like

{
  "success": true,
  "cached": false,
  "creditsUsed": 20,
  "data": {
    "url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
    "videoId": "dQw4w9WgXcQ",
    "commentId": "Ugzge340dBgB75hWBm54AaABAg",
    "totalReturned": 0,
    "replies": []
  }
}

Request parameters

Name	Type	Required	Description
url	string	Yes	Public YouTube video URL, e.g. https://youtube.com/watch?v=ID.
comment_id	string	Yes	ID of the parent comment to fetch replies for (from the comments endpoint).
limit	integer	No	Max items to return (default 50, max 500). Billed per result.

Frequently asked questions

What does the YouTube Comment Replies API do?

The YouTube Comment Replies API lets you pull comments with author, text, likes, and replies from a public YouTube video using one GET request to /v1/youtube/comment-replies. It returns clean JSON — no OAuth or scraping setup required.

How many credits does the YouTube Comment Replies API cost?

Each successful call costs 20 credits. Responses are cached for 24 hours, and cached results cost 0 credits. Failed or empty results are never charged.

Do I need a YouTube API key or OAuth?

No. A single Captapi key works across YouTube, TikTok, Instagram, and Facebook. We handle proxies, rate limits, retries, and authentication for you.

Is the YouTube Comment Replies API suitable for production use?

Yes. It is a stable REST endpoint with predictable JSON, automatic retries, and a shared 24-hour cache. Use it for RAG pipelines, analytics, monitoring, and content automation.

Ready to get YouTube comment replies?

Start free with 100 credits — no credit card required.

Get your free API key