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Competitors

Reach people engaging with competitor posts

A scheduled scraper watches the LinkedIn posts of 15 competitors, collects every reaction and comment, enriches the people, and runs every person through an AI agent that checks ICP fit.

Works ifYour buyers follow competitors or category voices on LinkedIn.

Built for · B2B SaaS · Europe
n8nApifyCrustdataRapidAPIExaTavilyTrigger.dev
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The system

~/builds/competitor-post-engagers
Schedulerthen the bridge, hourlyn8n
01Source

Competitor A

Latest posts

Apify

Competitor B

Latest posts

Apify

+ 13 more

Latest posts

Apify
Reactions + commentsone key per post + person
02Enrich

Cascade

Best provider first

providerbackup APIscrape
CrustdataRapidAPI
03Qualify

ICP agent

Thinks, then searches

Picks between two search tools before deciding fit.

ExaTavily
04Signal

Reaction

Liked a competitor post

452

Comment

Said something about it

203
Engaged prospects, company-linked.

The signal

Someone reacted to or commented on a competitor's post.

Why it predicts a purchase

They are paying attention to the category right now, and they told you which vendor they follow. That is a topic signal and a competitive signal in one click.

How it works

01

One key per reactor per post

Dedup on post plus reactor, so ten people reacting to one post become ten signals and the same person on the next run does not.

02

Best provider first, fallbacks after

A three-step cascade: the best-quality provider first, a backup API second, raw scraping last.

03

An agent inside a normal workflow

The ICP check is a real agent with a think step and two search tools that it chooses between, living inside an otherwise deterministic pipeline.

Build notes

  • The tracker was built and then never wired to a trigger. It sat idle for two weeks. Check that a workflow runs, not only that it exists.
  • Signal types follow a fixed taxonomy: reaction, comment, profile_visit.
  • Inline JSON in SQL broke five runs in a row. Parameterised queries only.

Questions

Should I mention that they liked a competitor's post?

No. Mention the topic, never the like. The engagement tells you who is paying attention, not what to say.

Are comments better than likes?

We would weight them higher: comments often state the pain in their own words.

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The next step

Let's get started.