LinkedIn data API · Reactions on a post

LinkedIn Reactions API. Pay per record.

Get everyone who reacted to a LinkedIn post: their name, headline, profile URL, location and the reaction they chose. Filter by reaction type, up to ten posts per call.

Price: $0.002 / reaction
Billed: Per record
Free to start: $0.10
Endpoint: POST /v1/linkedin

Updated 21 October 2026

What people build with the LinkedIn Reactions API

Turn likes into leads

The hundreds of people who liked a post in your niche are a warm list. Get their names and headlines.

Audit engagement

See who actually reacts to a creator's posts before you sponsor them.

Quote it, then run it

1. free quote: the exact price, nothing charged

curl -X POST https://apiforagents.dev/v1/linkedin \
  -H "Authorization: Bearer $AFA_KEY" \
  -H "Content-Type: application/json" \
  -d '{"op":"postReactions","subjects":["https://www.linkedin.com/posts/<post-id>"],"reactionTypes":["like"],"limit":25,"estimateOnly":true}'

2. the same call, run

curl -X POST https://apiforagents.dev/v1/linkedin \
  -H "Authorization: Bearer $AFA_KEY" \
  -H "Content-Type: application/json" \
  -d '{"op":"postReactions","subjects":["https://www.linkedin.com/posts/<post-id>"],"reactionTypes":["like"],"limit":25}'

Inputs

Everything you can send in one postReactions call. Required inputs first.

Input	Type	What it does
subjects *	text list	Post URLs. 1-10 items
reactionTypes	enum list	Keep only these reactions: like, celebrate, support, love, insightful, funny. Omit for all of them.
limit	integer	1-100

What comes back

The fields of every row, always present. Nothing is guessed: a value that could not be measured is null, and the answer's coverage says why.

Show all 24 rows

Field	Type
reactorProfileId	string
reactorHandle	string
reactorName	string
reactorHeadline	string
reactorUrl	string
reactorAvatarUrl	string
reactorLocation	string
reactionType	string
postUrn	string
postUrl	string
postAuthor	string
postAuthorHandle	string
postAuthorUrl	string
postAuthorHeadline	string
postAuthorProfileId	string
postAuthorType	string
postText	string
postPostedAt	string
postMediaUrl	string
postLikes	integer
postComments	integer
postReposts	integer
reactedAt	string
details	object

details is always the last field: everything else the source sent for that row, under our own field names. Its keys depend on the source that answered, so read them defensively; it is {} when there is nothing more.

A sample answer

Made-up names and values in the real field names, so you can see the shape before you spend anything.

reactorHandle	reactorName	reactorHeadline	reactorLocation	reactionType	postAuthor
priya-nair	Priya Nair	Product Lead at Ledgerly	Mumbai, India	LIKE	Ananya Rao
daniel-kim	Daniel Kim	Engineering Manager at Kitebank	Seoul, South Korea	PRAISE	Ananya Rao
emma-novak	Emma Novak	Head of People at Northfold	Prague, Czechia	INTEREST	Ananya Rao

Pricing

Pay as you go, in US dollars, per record. No subscription, nothing expires, $5 first top-up, and every new agent starts with $0.10 free.

Request	Records	At the list price
One reaction	1	$0.002
10 reactions	10	$0.02
A full page	100	$0.2

These are per-record list prices. Some calls also carry a minimum, such as a page of search results, so a small request can cost more than the table shows. The quote ("estimateOnly": true) is free, gives the most your exact request can cost, and the charge then settles to what came back. Records that do not come back are refunded.

Try it without writing code

Open the LinkedIn Reactions API in the playgroundThe playground runs any endpoint by hand: pick a platform and what you want from it, fill a short form named in plain words (or press Use sample input), see the free quote on the Run button, run it, then read the answer as a table or JSON and download it as CSV or JSON. The same call is written out as cURL, Python and Node while you type.

Why this one, and not a scraper you run yourself

No login, no LinkedIn account, no cookies, no proxies, no browser to babysit.
When the site changes its pages, your request stays the same: keeping the reads working is our job, not yours.
A fetch that fails costs nothing: it is named in the answer with a reason, and the quote says the most a call can cost before it runs.

Questions people ask.

What does the LinkedIn Reactions API return?

One row per reaction: the reactor's handle, name, headline, profile URL and location, the reaction type, and the post's URL, author and text.

Can I filter by reaction type?

Yes: like, celebrate, support, love, insightful or funny.

How much does it cost?

$0.002 per reaction returned, up to a hundred per call.

Try it in a minute. $0.10 free.

The playground runs any endpoint by hand: pick a platform and what you want from it, fill a short form named in plain words (or press Use sample input), see the free quote on the Run button, run it, then read the answer as a table or JSON and download it as CSV or JSON. The same call is written out as cURL, Python and Node while you type.

Try this endpoint in the playground

Quickstart · Every price · All platforms

Why people pick API for Agents

One key for 26 platforms: social, commerce, jobs, places, search and contacts, with one request shape and one response shape.
A free quote before any spend: add "estimateOnly": true to any call and see the most it can cost.
Pay per record in US dollars. No subscription, nothing expires, top-ups from $5.
$0.10 free to try, no card. An AI agent can sign itself up in one request; a person claims it later.
Measured, not estimated: every answer says when each row was measured, whether it was fresh or a recent capture, and how sure to be of each field.
Partial success is success: anything that could not be fetched is named with a reason, and the charge settles to what came back, never above the quote.
Typed fields that keep their names whichever source answered, and a details object last with everything else the source sent, under our own field names.
Try any endpoint in the playground and download the answer as CSV or JSON.

API for Agents is independent and not affiliated with or endorsed by LinkedIn or any company named here. LinkedIn is a trademark of LinkedIn Corporation; other names belong to their owners. Public data only: nothing behind a login.