LinkedIn Comment Post

Automate comments on LinkedIn posts to increase visibility, engage with prospects, and boost your personal or company brand.

Edges is not related to LinkedIn and is not an official LinkedIn product.

API Endpoint

POST/v1/actions/linkedin-comment-post/run/live

Parameters

Input Parameters

Configuration Parameters

Integration Parameters

Guide

What LinkedIn Comment Post does

LinkedIn Comment Post publishes a comment on a specific LinkedIn post so your engagement shows up in the target's notifications and the post's comment thread. You get a single-record primitive for triggered engagement, where the comment body can be templated, AI-generated, or fully pre-written.

It runs on the LinkedIn level and uses your connected LinkedIn session, so every comment is attributable to your account.

How it works

You pass the post URN or URL and a comment body. Edges signs the request with your authenticated LinkedIn session, posts the comment, and returns the new comment's ID along with a typed status payload. The action runs on Edges infrastructure with safe pacing, so you do not handle cookies, retries, or throttling yourself.

The action supports plain text and mentions — pass mention tokens in the body and Edges resolves them against the authenticated session before posting. The operation is synchronous: by the time the run completes, the comment is live.

When to use LinkedIn Comment Post

Use LinkedIn Comment Post when a comment is higher-signal than a like — when you have something specific to add, when the post surfaces in an ICP-relevant thread, or when you want the post author's notifications to light up with your name. It plugs into the LinkedIn messaging & outreach API workflow.

Comments are the highest-effort social primitive and the highest-return: they put you in front of the author's network, not just the author themselves.

Use cases

  • Founder-led thought leadership. Auto-comment on posts from a curated list of peers to keep your brand present in your network's feeds.
  • ABM engagement. Drop a substantive comment on target-account decision-maker posts before SDR outreach starts.
  • Community ops. Comment-and-welcome on new member posts in your community group.
  • Event visibility. Comment on the event host's promotional post to sit near the top of the thread.
  • Customer advocacy. AM auto-comments on customer win announcements to amplify reach.

Best practices

  • Write actual substance. Generic "Great post!" comments damage your brand more than silence. Use variables and AI-assist to keep comments specific.
  • Gate on post quality and recency. Commenting on off-topic or stale posts looks automated. Filter first.
  • Pair with earlier touches. A comment lands harder when the author has already seen your like or follow — chain Like LinkedIn Post before LinkedIn Comment Post.
  • Respect LinkedIn activity guardrails. Edges paces automatically; keep combined manual and automated commenting under a reasonable daily ceiling per account.

Common questions

How many comments can I post per run?

One per run. LinkedIn Comment Post is a per-record primitive — for a campaign, loop it over a filtered input list sourced from Search LinkedIn Content or Extract LinkedIn People Post Activity.

Does this use my LinkedIn account or a shared pool?

Your LinkedIn account. You connect LinkedIn to Edges once and every comment runs through that authenticated session, fully attributable to your account.

Can I chain LinkedIn Comment Post with other Edges actions?

Yes. Typical chains wire Extract LinkedIn Post Likers into downstream warmup, then use LinkedIn Comment Post as the commenting touchpoint, followed by Message LinkedIn Profile.

Get started

Add LinkedIn Comment Post to any triggered engagement flow on Edges, or call it directly from the Edges API to drive social touches at scale. Browse the full Actions library for the surrounding primitives.

Code Examples

bash
curl -X POST "https://api.edges.run/v1/actions/linkedin-comment-post/run/live" \
  -H "X-API-KEY: <YOUR_API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{
  "identity_ids": [
    "your-identity-uuid"
  ],
  "identity_mode": "direct",
  "input": {
    "custom_data": "example_value",
    "linkedin_post_url": "https://www.linkedin.com/in/example-profile",
    "linkedin_comment_url": "https://www.linkedin.com/in/example-profile"
  },
  "parameters": {
    "comment": "example_value"
  }
}'

Output Example

{
  "linkedin_url": "https://www.linkedin.com/in/example-profile",
  "thread_urn": "example_value",
  "comment": "example_value",
  "created_at": "example_value"
}

Explore More Actions

Discover other powerful LinkedIn automation actions in our library.