Video SEO topic research is source youtube on get_growth or get_time_series. It is not search.list. Google's YouTube Data API quota page (checked 27 Aug 2026) puts search.list in its own daily bucket: default 100 calls, 1 quota each, extra pages extra calls. That bucket is for IDs. This POST is for whether a topic is rising. POST https://api.trendsapi.ai/api. Topic spelling: the YouTube guide. Mode list: the API reference. A title dashboard that forgets to parse body will store a quote.
Topic slope without spending the bucket
POST https://api.trendsapi.ai/api
Authorization: Bearer <api_key>
Content-Type: application/json
{"mode":"get_growth","source":"youtube","keyword":"ChatGPT","percent_growth":["3M","12M"]}
Topic check on 27 Aug 2026: ChatGPT on youtube was 49 and +44.12% on 3M. The web SERP for the same string was cooling. A thumbnail brief should follow the YouTube slope, not an averaged "SEO" cell.
The Daily on youtube in the same session was 51, 3M −12.07%, 12M +8.51%. A news show's leftover clip demand is not the same curve as an AI explainer. Store the topic, not the vertical.
Titles are not topics
type YouTube Trending on 27 Aug 2026 included vamp city and a long Avengers Endgame encore title. Those rows are what is charting. They are a pick list for a reaction channel. They are a poor keyword until someone shortens them. sort rank_change finds titles that climbed, which is a better brief for a news-style channel than a 12M series.
Do not send part=snippet&q= to YouTube to learn a 0-100. Send it when the pipeline already chose the topic and needs video IDs to store. Google notes: the Google Trends guide.