Dropshipping demand is a sequence, not a blend. Check short TikTok windows first. Check Amazon 1M second. POST https://api.trendsapi.ai/api with source tiktok, amazon. Seller writeups in 2026 still describe Amazon as search-led and TikTok Shop as creator-led. This POST is that split in JSON. Short-form name rules: the TikTok guide. Call shape: the API reference. A supplier sheet that reads the envelope as the series will stock from a quote.
TikTok first, and only the windows it has
POST https://api.trendsapi.ai/api
Authorization: Bearer <api_key>
Content-Type: application/json
{"mode":"get_growth","source":"tiktok, amazon","keyword":"air fryer","percent_growth":["7D","1M"]}
On 27 Aug 2026 TikTok stored the phrase as airfryer. The 7D score rose 43.18%. The 1M score rose 21.15%. Longer presets failed (date_out_of_range, 27 Jul 2026 to 25 Aug 2026). A supplier sheet that requires a TikTok year slope will stay empty. That is coverage, not a dead niche.
Amazon 7D was collapsed_range. Amazon 1M was −9.81% (51.5 vs 57.1 on 31 Jul 2026), volume −9.71%. Amazon 12M was −30.31%. The aisle is smaller than last July. The clip is bigger than last week. That pair is "test ads," not "order 5,000 units."
A hashtag is not a SKU
get_top_trends type TikTok Trending Hashtags on 27 Aug 2026 ranked tiktokshopbacktoschool second, after movie. That tag is a season. Map it to a phrase (pencil case, dorm storage), then run get_growth. Do not POST the hashtag to source amazon.
google search for air fryer in the same session was 56, 7D −3.45%, 12M +16.67%. Residual web search after a TikTok spike is the leftover demand Amazon will still see. If search is down on 7D and Amazon 1M is down, the clip is entertainment. Amazon notes: the Amazon guide.