Comment on a LinkedIn post

Add a comment to a LinkedIn post. Comments increase engagement and visibility. Set `tagPostAuthor` to true to tag the post author with a real @mention that notifies them. Supports posting as a company page if you have admin access. Rate limit: 100 comments per day.

POST/posts/comment

Authentication requiredPosts

Code Examples

curl -X POST 'https://api.connectsafely.ai/linkedin/posts/comment' \
  -H 'Authorization: Bearer <your_api_key>' \
  -H 'Content-Type: application/json' \
  -d '{"postUrl":"https://linkedin.com/posts/example-post","comment":"Great breakdown, {{author}} — thanks for sharing this!","tagPostAuthor":true}'

Parameters

No parameters.

Request Body

Field	Type	Required	Description
`accountId`	string	No	LinkedIn account ID to use. If not provided, uses the default account.
`postUrl`	string	Yes	Full URL of the LinkedIn post to comment on
`comment`	string	Yes	Comment text content. Supports @mentions and hashtags. When `tagPostAuthor` is true, place a {{author}} placeholder where the author tag should appear — otherwise the author name is prepended.
`tagPostAuthor`	boolean	No	When true, tags the post author with a real @mention that notifies them. The tag is inserted at a {{author}} placeholder in `comment` if present, otherwise the author name is prepended.
`companyUrn`	string	No	Company URN to post comment as company page instead of personal profile

Example

{
  "postUrl": "https://linkedin.com/posts/example-post",
  "comment": "Great breakdown, {{author}} — thanks for sharing this!",
  "tagPostAuthor": true
}

Responses

Status	Description
200	Comment posted successfully
400	Bad request - Missing required fields or validation error
401	Unauthorized - Invalid or missing API key
429	Rate limit exceeded
500	Server error - Failed to post comment

Rate Limit Headers

All responses include rate limit information in the headers:

Header	Description
`X-RateLimit-Action`	The action type being rate limited
`X-RateLimit-Limit`	Maximum actions allowed per period
`X-RateLimit-Used`	Actions used in current period
`X-RateLimit-Remaining`	Actions remaining
`X-RateLimit-Reset`	ISO 8601 timestamp when limit resets

200 Response Parameters

Name	Type	Description
`success`	boolean
`message`	string	Success message
`postUrl`	string	URL of the post that was commented on
`comment`	string	The comment text that was posted
`accountId`	string	LinkedIn account ID that posted the comment
`postDetails`	object	Details about the post that was commented on

200 Example

{
  "success": true,
  "message": "Successfully posted comment",
  "postUrl": "https://www.linkedin.com/feed/update/urn:li:activity:7430667226199830528/",
  "comment": "Great insights! Thanks for sharing.",
  "accountId": "696ce9e780e0483585e4e553",
  "postDetails": {
    "activityUrn": "urn:li:activity:7430667226199830528",
    "ugcPostUrn": null,
    "shareUrn": "urn:li:share:7430667225633550337",
    "featuredActivityUrn": null,
    "content": "Discover proven LinkedIn strategies for consultants to attract high-value clients..."
  }
}

400 Response Parameters

Name	Type	Description
`error`	string

400 Example

{
  "error": "postUrl is required",
  "success": false
}

401 Response Parameters

Name	Type	Description
`error`	string

401 Example

{
  "error": "Unauthorized"
}

429 Response Parameters

Name	Type	Description
`error`	string
`success`	boolean

429 Example

{
  "error": "Rate limit exceeded for COMMENT: 100/100 used. Resets at 2024-01-16T00:00:00.000Z",
  "success": false
}

500 Response Parameters

Name	Type	Description
`error`	string

500 Example

{
  "error": "Failed to post comment",
  "success": false
}

Code Examples

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