COMPARISON / CHECKED 23 OCTOBER 2026
TrendsFast vs Exploding Topics: an agent's trends API or a curated trend database
A dated, factual comparison. Exploding Topics curates long-horizon market trends for analysts; TrendsFast gives agents this week's niche trends with sources. Which fits which job, with published prices.
ANSWER FIRST
The short answer
Exploding Topics is a curated database of emerging trends, products and startups for people researching markets over months, with an API sold on top of its Business plan. TrendsFast is a trends API for agents: what is trending in one niche across social and search this week, with the source and date of every item. For long-horizon market research, Exploding Topics. For an agent that needs today’s evidence in its own workflow, TrendsFast.
The facts, checked on 23 October 2026
Exploding Topics: App plans $39, $99 and $249 a month; the API requires the $249 Business plan. API: Yes, as an add-on to the Business plan: 1,000 requests a month for $1,000, 5,000 for $2,000, 25,000 for $4,000. Use inside your own product needs custom pricing. 7-day trial on app plans. Sources: Described generally as social media, search engines, forums, news, e-commerce and podcasts; individual platforms are not named.
TrendsFast: X, TikTok, YouTube, Instagram, Reddit, Google Search, Hacker News, collected daily. The API is included from the first credit: a Global read costs 1 credit and a Niche read 3; $10 buys 500 credits once, and a verified account gets 100 free credits.
The same question, asked of both
Ask “what is emerging in home coffee”. Exploding Topics answers with curated topics and their long-run search growth, the kind of view an analyst uses to decide where a market is heading over the next year.
TrendsFast answers with what was observed in the last days: the videos, threads and searches about home coffee, ranked against your niche, each with its link and the time it was seen, and with growth only where two readings of the same item show it. It is a shorter horizon and a more literal answer: what to make or say this week.
Where Exploding Topics is stronger, and where we are
Exploding Topics is better at long-horizon discovery with human curation: a trend that has grown for a year, with the context of products and startups around it. TrendsFast’s index is young and does not cover a year of history.
TrendsFast is better for an agent: the API is part of every plan, calls cost a few credits rather than a monthly API add-on, results name their posts and searches with dates, and a niche can be supplied per request. Its own published limitation is that the Exploding Topics API offers no custom keyword or geo lookups.
When to choose the other one
Choose Exploding Topics if you research markets, products or investments over months and want curated topics. Choose TrendsFast if an agent or app needs current, attributable trends for a specific niche, many times a day, at a per-call price.