Sponsor Ledger

Point it at a YouTube channel and it reads back through the descriptions to work out which videos were paid for, and by whom. Results come out as a spreadsheet.

Paid
Promo
Log
Set up the scan
How many recent videos

Free from Google Cloud. Remembered on this computer after the first successful scan, so you paste it once.

Optional — add AI analysis

Without a key, detection runs on pattern matching: a database of ~130 known sponsor brands, promo-code formats, disclosure phrases, and vanity tracking links. That catches most deals. An Anthropic key adds a language pass that reads the description properly, which picks up smaller and one-off sponsors the database has never seen. Roughly 2–5 cents per 100 videos.

Where do I get the YouTube key?
  1. Open console.cloud.google.com and create a project.
  2. APIs & Services → Library, search YouTube Data API v3, click Enable.
  3. Credentials → Create credentials → API key, choose Public data, copy the key.
  4. Under Application restrictions, leave it as None. A referrer or IP rule blocks this page.

Google gives 10,000 quota units daily. A 100-video scan costs about 5.

Nothing scanned yet. Paste a channel above and the ledger fills in here.