Pass a hashtag such as #coldbrew. social.search returns recent public Instagram posts tagged with it: caption, post date, likes, comment count, author and link. Use it to see which businesses use a tag right now, what they promote and how much engagement it brings.
Ask your agent
Search #coldbrew on Instagram and list the cafes posting with it today.
Connect RouterGrowth once, then ask in plain words. New workspaces start with $1 of credit. Get a key or read the setup guide.
A real run
One call to social.search (social post search), run through RouterGrowth on October 26, 2026. These are the first rows it returned; fields that name a person are masked.
| text | posted | likes | replies |
|---|---|---|---|
| Press REFRESH on your mind, body and soul. At @fablescafepune, we believe the right brew can reset your entire day. Our chilled iced… | 2026-10-26 | 6 | 0 |
| Yang ditunggu-tunggu di akhir bulan… PAYDAY SALE is here! ☕️❤️ • Special price for all cold brew coffee dari tanggal 26 Oktober… | 2026-10-26 | 4 | 2 |
| You asked. We listened. 🖤 Over the past few nights, a few of you have asked us for more on the menu. So The Monolith kitchen, aka… | 2026-10-26 | 0 | 0 |
Five #coldbrew posts, all from the morning of the run, by cafes in India, Indonesia and the Philippines, with single digit likes.
Step by step
Instagram search works on hashtags, so pass one tag, with or without the #.
platform instagram, the tag and a limit. Each post has its caption, date, likes and link.
Group posts by author to see which businesses use the tag most, then social.profile on the ones that matter.
social.comments on a post URL returns the comments under it.
Price
List prices on Instagram, read from the catalog when this page was built. The exact figure is quoted before every run, and a monthly plan lowers it.
In practice
You describe the job; the agent picks the calls, shows the price and runs them.
Search #coldbrew on Instagram and list the cafes posting with it today.
Find recent posts under our campaign hashtag and read the comments on the three with the most likes.
Connect
One MCP server for Claude, ChatGPT, Claude Code, Codex and Cursor, or the same call over the CLI and REST with the input above.
claude mcp add --transport http routergrowth https://api.routergrowth.com/mcp
npm install -g routergrowth && routergrowth setup
routergrowth run -c social.search -i '{"platform": "instagram", "query": "#coldbrew", "limit": 5}'curl -X POST https://api.routergrowth.com/v1/run \
-H "Authorization: Bearer $ROUTERGROWTH_API_KEY" \
-d '{"capability": "social.search", "input": {"platform": "instagram", "query": "#coldbrew", "limit": 5}}'Worth knowing
Every result here was posted the same morning. The call shows what is tagged now, not the all time popular posts.
Instagram search matches hashtags, not free words in captions. Use one tag per call.
A global tag brings posts in many languages. Filter by caption language if you sell in one market.
FAQ
On Instagram the search runs on hashtags. Pick the tag closest to your keyword.
Posts come back with an is_video flag, so you can tell video posts from images.
No. One RouterGrowth key runs it. RouterGrowth is independent of Instagram.
Yes, each post carries its author handle. Mask people's handles before you publish.
More on Instagram
Reading this as an agent? This page as markdown: /tools/instagram/hashtag-search.md
Connect your agent once. The first calls run on the $1 that comes with signup.