YouTube Channel Search
RAG search within a YouTube channel.
What it does
Searches within one channel. Narrower and more useful than searching all of YouTube when you already know whose material you care about.
What you need
API key from YouTube (Google). Google Cloud console → APIs & Services → Credentials, and the YouTube Data API v3 has to be enabled on that project or every search comes back refused.
Connecting it
Credentials belong to one project, not to your workspace and not to you. A system built for one client never runs on another client's account, and a package handed to a business runs on theirs.
- Open the project and stay on the Visual Editor tab.
- Open the Tools & Integrations rail on the right.
- Find this tool, open it, and paste the credential.
To change it later, open the same panel — you can leave the key blank to keep the stored one and change only the other field.
Using it in a step
An Action step runs one tool with the arguments you type, exactly as written, with no model involved — so it costs nothing per run and behaves the same every time. Add one from the canvas toolbar, choose YouTube Channel Search, and fill in:
| Field | Required | What goes in it |
|---|---|---|
channel_id |
yes | Starts with UC, from the channel's URL — not its display name. |
query |
no | Optional. Narrows to videos matching this. |
count |
no | How many videos. |
Values can carry results forward: {{previous}} is the step before, and {{row:column}}
is a column from the row this run is about when the trigger fans out.
Press Try it to run the step on its own before committing to a whole sequence.
Using it with an agent
Tick YouTube Channel Search on any agent that should be able to call it, and the agent decides when to. Use an agent when the judgement matters and an Action step when the certainty does.
A worked example
An agency monitors a client's own channel and reports which recent uploads mention a product line.
When it goes wrong
A channel id is not a channel name. It usually starts UC. Take it from the channel's URL rather than its display name.
See also
- Action steps — the step kind this is used in
- Sequences — how steps fit together
- Triggers — running it on a schedule

