Flagging TODO items

I primarily use Joplin to track my customer calls. I keep a notebook for each customer, and a note for each meeting. I'd like to track TODO items across notes into a single view so I don't forget anything. Is there any easy way to do this, short of relying on search?

You can use one of my python scripts.

But I work on a plugin for this.

It says I need a Joplin API token. How do I create one?

In Joplin Tools > Options > Web Clipper there you can find the Authorization token.

I just did that and I get the error Joplin not running

Have you enabled the clipper service?
Same menu Enable Web Clipper Service