# Kairon, $49 monthly: LinkedIn post reaction API

> Everyone who commented on or reacted to ONE named post, by its LinkedIn URL.

Kairon's Starter plan lets you call the LinkedIn post reaction API. We check each provider's docs for 2 fields. Kairon's docs list 1: Reaction.
You pay $49 a month for 1 linked account. This call is free. Kairon limits how many pages you get but gives no number.
We haven't run Kairon through [our LinkedIn post reaction API benchmark](https://datacircle.dev/best-linkedin-post-reaction-api.txt) yet.
This plan costs $49 a month. We rank 124 plans for LinkedIn post reaction APIs by price. Half the plans cost $0.497 or less per 1,000 reactions.
[EnvoAPI's $499 monthly plan](https://datacircle.dev/linkedin-post-reaction-apis/envoapi/499-monthly-scale-get-v1-posts-reactions-by-slug/llms.txt) is the cheapest paid plan per 1,000 reactions: $0.002. EnvoAPI charges for each page of results. We count 1,000 reactions on each page to get the $0.002 price. [AnyAPI's pay-as-you-go plan](https://datacircle.dev/linkedin-post-reaction-apis/anyapi/pay-as-you-go/llms.txt) costs the least for 10,000 reactions a month: $0.29.
[ExportComments's $220 monthly plan (/api/v1/batch-export)](https://datacircle.dev/linkedin-post-reaction-apis/exportcomments/220-monthly-business-post-api-v1-batch-export/llms.txt) covers any number of reactions. ExportComments's $220 monthly plan costs less up front than EnvoAPI's $499 monthly plan.
[Fetchin](https://datacircle.dev/linkedin-post-reaction-apis/fetchin/50-monthly-subscription-50k-get-api-v1-post-reactions/llms.txt), [BeReach](https://datacircle.dev/linkedin-post-reaction-apis/bereach/10-pack/llms.txt) and [ScrapeField](https://datacircle.dev/linkedin-post-reaction-apis/scrapefield/39-pack/llms.txt) are the best LinkedIn post reaction API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/linkedin-post-reaction-apis/kairon/49-monthly
- [LinkedIn post reaction API in 2026: the 14 best compared](https://datacircle.dev/best-linkedin-post-reaction-api.txt)
- Get it: https://heykairon.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- Request: `POST https://app.heykairon.com/api/channel-actions/post-reactions`
- API key: with the plan, on https://heykairon.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- Its API docs: https://app.heykairon.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing#/channel-actions/ChannelActionsController_postReactions
- Sold by: Kairon (https://heykairon.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 50%
- Reaction: ✓

## Price

- Per: page, size not stated
- Billing: monthly
- $ a month: $49

## Aggregators

- Aggregators: none

## Charges

- Also pays for: Fetch a LinkedIn profile or company · Send a connection invitation · Send a direct message · Send an InMail · Search (Sales Navigator) · The comments a person has written

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Everyone who commented on or reacted to ONE named post, by its LinkedIn URL.

## Data

- Keep data: no limit
- Use data: You may not use the Service to: Break the law, including data protection, anti-spam and marketing law where the people you contact are. Send spam, harass or deceive anyone, or pretend to be someone you are not. Collect or send special categories of personal data, such as health, religion or political opinions, or data about children. Resell the Service, or give access to people outside your organization, unless we agree to it in writing. Resell or publish the data the Service returns about people and companies, or use it to build a database or a product that competes with Kairon. Get around the limits we set, test our security without our written permission, or copy, take apart or reverse engineer the Service. Disrupt the Service or put a load on it far beyond normal use.

## Plan

- Pay: $49
- You get: 1 linked account a month

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: url. Optional: cursor
- Method: POST
- Path: /api/channel-actions/post-reactions

## About the plan

- Plan: Starter
- Who can get it: Professional use only, not for consumers or anyone under 18, accounts are let in from a waitlist

## The only field the plan's answer can hold

reaction type

## Kairon's plans (2)

- [Kairon, $49 monthly](https://datacircle.dev/linkedin-post-reaction-apis/kairon/49-monthly/llms.txt): 50% complete
- [Kairon, contact us](https://datacircle.dev/linkedin-post-reaction-apis/kairon/contact-us/llms.txt): 50% complete

## Kairon's calls for this API (1)

- `POST /api/channel-actions/post-reactions`: [Kairon, $49 monthly](https://datacircle.dev/linkedin-post-reaction-apis/kairon/49-monthly/llms.txt)

## Kairon's APIs (7)

- [Kairon: email finder API pricing, 2 plans](https://datacircle.dev/find-email-apis/kairon/49-monthly/llms.txt)
- [Kairon: phone finder API pricing, 2 plans](https://datacircle.dev/find-phone-apis/kairon/49-monthly/llms.txt)
- [Kairon: LinkedIn company search API pricing, 2 plans](https://datacircle.dev/linkedin-company-search-apis/kairon/49-monthly/llms.txt)
- [Kairon: LinkedIn profile comment API pricing, 2 plans](https://datacircle.dev/linkedin-person-comment-apis/kairon/49-monthly/llms.txt)
- [Kairon: LinkedIn profile API pricing, 2 plans](https://datacircle.dev/linkedin-profile-apis/kairon/49-monthly/llms.txt)
- [Kairon: LinkedIn people search API pricing, 2 plans](https://datacircle.dev/linkedin-people-search-apis/kairon/49-monthly/llms.txt)
- [Kairon: LinkedIn post reaction API pricing, 2 plans](https://datacircle.dev/linkedin-post-reaction-apis/kairon/49-monthly/llms.txt)

## Kairon: LinkedIn post reaction API alternatives

- [Datamagnet, $39 monthly](https://datacircle.dev/linkedin-post-reaction-apis/datamagnet/39-monthly/llms.txt): 100% complete, live
- [Pipecorn, $699 monthly](https://datacircle.dev/linkedin-post-reaction-apis/pipecorn/699-monthly/llms.txt): no limit, 50% complete
- [ExportComments, $50 monthly, Premium, POST /api/v1/batch-export](https://datacircle.dev/linkedin-post-reaction-apis/exportcomments/50-monthly-premium-post-api-v1-batch-export/llms.txt): 50% complete, live
- [GetSales, $69 monthly](https://datacircle.dev/linkedin-post-reaction-apis/getsales/69-monthly/llms.txt): no limit, 50% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

- https://app.heykairon.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://app.heykairon.com/docs-json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/data-pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/developers?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/mcp-tools.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/pricing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing
- https://heykairon.com/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-reaction-api-pricing