YouTube search interest for any keyword as a normalized time series, growth rates over 3M/6M/12M/5Y, and the live trending videos feed. No Google Cloud project, no OAuth, no quota-unit accounting.
# one POST, every source POST https://api.trendsapi.ai/api Authorization: Bearer YOUR_API_KEY { "mode": "get_growth", "source": "youtube", "keyword": "mrbeast", "percent_growth": ["3M", "12M"] }
{
"search_term": "mrbeast",
"data_source": "youtube",
"results": [
{
"period": "3M",
"growth": 8.4,
"direction": "increase"
},
{
"period": "12M",
"growth": 21.9,
"direction": "increase"
}
]
}The official YouTube Data API is built for metadata: videos, channels, playlists. It does not tell you how often people search for a topic, and it bills you in quota units that differ per endpoint. Trends API gives you the demand metric the official API omits, at a flat one-request-one-call rate.
Search interest on YouTube behaves differently from Google: tutorials, reviews and long-tail how-to queries dominate. Tracking a topic on both platforms tells you whether interest is informational (Google) or consumable content (YouTube), which matters for content planning.
Validate a topic's search interest before scripting, not after publishing.
Track your niche's rising keywords week over week.
Compare search demand for competing channels or formats.
Show brands category growth with hard numbers in the deck.
| YouTube Data API | Trends API | |
|---|---|---|
| Setup | Google Cloud project + OAuth | one API key |
| Search interest metric | not exposed | normalized 0-100 series |
| Trending videos feed | separate endpoint | included, one call |
| Quota management | units per call | flat: 1 request = 1 call |
| Free tier | 10k units/day | 100 requests/month |
Historical trend series for a keyword on this source, normalized 0-100.
Growth percentages over 3M / 6M / 12M / 5Y windows.
21 live trending feeds across platforms, no keyword needed.
Keyword search volume over time (normalized 0-100), growth over 3M/6M/12M/5Y windows, and the live YouTube Trending feed of top videos right now.
The YouTube Data API returns video and channel metadata but no search-interest metric. Trends API gives you the demand side: how often people search for a topic, on a normalized scale you can compare against TikTok, Google and 13 other sources.
No. One Trends API key, one POST endpoint, no OAuth and no quota-unit accounting.
The trending feed updates continuously through the day. Keyword series are pulled on demand at request time; every response carries its own timestamp.
Yes. Make one get_growth call per source with the same keyword and compare the percentages directly; both are on the same normalized scale.
100 requests a month free. No credit card, no sales call. One key works for every source.
Get a free API key