YouTube has no search box for comments. Give your agent the video URL instead: RouterGrowth returns the comments under it as records, with author, likes and replies, and the agent searches them for the word, the question or the competitor you care about.
Ask your agent
Pull the latest 200 comments on this video and list every one that asks a question about pricing.
Connect RouterGrowth once, then ask in plain words. New workspaces start with $1 of credit. Get a key or read the setup guide.
A real run
One call to social.comments (post comments), run through RouterGrowth on October 17, 2026. These are the first rows it returned; fields that name a person are masked.
| text | author | likes | replies |
|---|---|---|---|
| Where can we get the training certificate | @ma*** | 0 | 0 |
| Its a bit out of date and current version (free one) is not quite like that | @ra*** | 0 | 0 |
| I appreciated the databases especially. I feel like a database myself lol… | @ed*** | 0 | 0 |
The 20 most recent comments under a public Notion tutorial on a creator's business channel. A question and a complaint about an outdated screen are already in the first rows.
Step by step
Add the MCP server to Claude, ChatGPT, Claude Code, Codex or Cursor. A new workspace starts with $1 of credit, enough to run this example many times.
Paste the video URL and say how many comments to read. social.comments returns each one with its text, author, likes, reply count and date.
Ask for the comments that mention a word, ask a question or name a competitor. The agent filters the records it already holds, so the search costs nothing more.
Ask for a table, a CSV or a short summary of the questions that repeat, and paste it where your team keeps research.
Price
List prices on YouTube, read from the catalog when this page was built. The exact figure is quoted before every run, and a monthly plan lowers it.
In practice
You describe the job; the agent picks the calls, shows the price and runs them.
Pull the latest 200 comments on this video and list every one that asks a question about pricing.
Read the comments on our last five uploads and find the ones that mention a competitor, with a link to each.
Which viewers asked for a template under this tutorial, and how many likes did each comment get?
Connect
One MCP server for Claude, ChatGPT, Claude Code, Codex and Cursor, or the same call over the CLI and REST with the input above.
claude mcp add --transport http routergrowth https://api.routergrowth.com/mcp
npm install -g routergrowth && routergrowth setup
routergrowth run -c social.comments -i '{"url": "https://www.youtube.com/watch?v=hbxQw4LQwws", "platform": "youtube", "limit": 20}'curl -X POST https://api.routergrowth.com/v1/run \
-H "Authorization: Bearer $ROUTERGROWTH_API_KEY" \
-d '{"capability": "social.comments", "input": {"url": "https://www.youtube.com/watch?v=hbxQw4LQwws", "platform": "youtube", "limit": 20}}'Worth knowing
YouTube offers no public comment search, so the call reads the thread and the agent searches it. Ask for enough comments to cover what you are looking for.
The charge covers the comments returned, so a small read costs little and an empty thread costs nothing. The quote is shown before the call.
Each comment carries its likes and reply count, the quickest way to find the questions many viewers share.
FAQ
Yes, in two steps: social.comments reads the comments under the video, then your agent filters them for the word or phrase. YouTube itself does not offer a comment search.
Pull the channel's recent uploads with social.posts, then the comments under each one. The agent merges the threads and searches them together.
The text, the author's handle, the number of likes and replies, when it was posted and the video URL.
No. The call runs on RouterGrowth's providers with your RouterGrowth key, with no Google Cloud project and no daily quota to manage.
Set limit to the number you want. The hold covers that limit before the run and the charge covers the comments that come back.
More on YouTube
Reading this as an agent? This page as markdown: /tools/youtube/comments-search.md
Connect your agent once. The first calls run on the $1 that comes with signup.