# Influencer finder: discover creators by niche, followers and engagement

Give your agent a niche, a country and a follower range, and get back a list of Instagram, TikTok or YouTube creators with engagement rates, then a fresh profile and a post sample on each one. 3 steps through one treg.to key, with the price printed before each.

## Try it

Setup line (paste into any agent): `set up treg — https://treg.to/llms.txt`

Then ask: "Using treg, find 25 Instagram fitness creators in the US with 50k to 500k followers and engagement above 3%. Show me the price first. Then pull each profile and its last 12 posts, and give me a CSV with username, followers, engagement_percent, category, whether the account is private, and likes and comments on the sample."

- **Specify the platform** influencers.club searches Instagram, TikTok, YouTube, X and Twitch separately, and the filter set changes with the platform.
- **Put the hard limits in filters** Follower range, engagement floor and country are enforced server-side. A plain-language brief drops constraints it cannot map.
- **Ask for the price first** Discovery bills per creator returned, so the limit you set is the bill. The table below shows the live rate.
- **Pull the profile after discovery** The discovery row is a snapshot. A profile call returns today's follower count and the bio.

## The steps

| # | Step | What the agent asks | Provider used | Price | Success rate |
|---|---|---|---|---|---|
| 1 | Search creators by niche | filtered search by bio keyword, follower range, engagement floor and country | influencers.club (`influencersclub.creators.search`, 2 providers, https://treg.to/agents/chatgpt) | $0.00598 per result | not yet measured |
| 2 | Pull each profile | today's follower count, bio, category and private flag for one handle | TikHub (`tikhub.instagram.user.profile`, 6 providers, https://treg.to/agents/chatgpt#social-listening) | $0.001 per found | not yet measured |
| 3 | Sample recent posts | the last 12 posts with likes and comments, by the numeric user id from the profile | TikHub (`tikhub.instagram.user.posts`, 4 providers, https://treg.to/agents/chatgpt) | $0.001 per found | 100% over 24727 calls, 1.8s median |

- Search creators by niche: Structured discovery: exact follower, engagement and country filters. Billed per creator returned; a zero-match page costs nothing.
- Pull each profile: The cheapest profile route in the catalog. Runs once per creator from the discovery list.
- Sample recent posts: Runs once per creator. Likes and comments over followers is the engagement check the discovery row cannot give you.

At the rates above, 25 rows where every call hits comes to $0.06. The receipt below is what it actually cost, and why it differs.

## What it actually cost

Run on 2026-09-14.

- Creators matched: 153 US fitness creators, 50k to 500k followers, engagement above 3%
- Creators returned: 25, one discovery call at limit=25 (0.25 credits)
- Profiles pulled: 25 of 25 resolved, none private
- Posts sampled: 24 of 25 post calls answered; 19 accounts had posts to count
- Follower range on the day: 50,142 to 412,256; median engagement 4.96%
- Total metered: $0.20: $0.15 discovery, $0.025 profiles, $0.024 posts

One discovery call matched 153 creators and returned the 25 requested, billed per creator returned. Twenty-five profile pulls followed, one per handle, and every one resolved; the post sample then answered for 24 of them, and 19 had posts to count. The CSV has the discovery snapshot and the same-day profile count side by side, which is how you spot a stale row. Usernames are removed from the published CSV because they identify real people; your own run returns them.

Download the CSV of this run: https://treg.to/workflows/discover-creators-in-a-niche.csv

## Why go through treg.to

- **One key, not 9 accounts** treg.to holds the provider keys. Neither you nor the agent sees them.
- **Price before the call** The provider's own rate, $0.000 markup, from a prepaid balance.
- **No subscription, no seats** Charged per call. $1.00 free per new team, no card to start.
- **Your own keys are free** Already pay Hunter? Register it and those calls are never metered.
- **Switch by changing a word** Another provider is a different word in the prompt, not a new integration.
- **Nothing to integrate** No SDK, no OAuth dance per vendor, no seats.

## Where it goes wrong

**Filter too narrow** A combination that matches nobody returns zero rows and costs nothing. Widen one filter at a time.

**Brief drops a constraint** The plain-language brief maps what it can and silently drops the rest. Put every hard limit in filters and use the brief for the fuzzy part.

**Handle changed since discovery** The discovery index lags. A profile pull on a renamed handle misses; the miss is free on this route.

**Country is inferred** Creator location comes from language and hashtags. Verify before a geo-targeted campaign.

## Before you start

**What does discovery cost?** Per creator returned, at the live rate in the table above. The limit you pass is the bill; the total match count is free.

**Can I combine filters with a plain-language brief?** Yes. Exact filters go in the filters object and the niche description in nlp_search. The response says which parts of the brief were applied.

**What about TikTok or YouTube creators?** Set the platform in the same discovery call. Swap the profile step for the matching platform's profile route.

**Why pull the profile at all?** Discovery rows are a snapshot. The profile call returns today's follower count, the bio and whether the account went private.

## Related

- Find creators by keyword: https://treg.to/use-cases/find-creators-by-keyword
- Search posts by keyword: https://treg.to/use-cases/search-posts-by-keyword
- Mine the comments: https://treg.to/use-cases/mine-the-comments
- Find people by role, company or location: https://treg.to/use-cases/people-search

HTML version: https://treg.to/workflows/discover-creators-in-a-niche