# KeyAPI, free: LinkedIn post comment API

> Fetch comments of a post by its activity urn.

KeyAPI's LinkedIn post comment API on its Free plan. It costs $0.00 per 1,000 comments. It returns both key fields we check: Comment and Commenter.
We haven't run KeyAPI through [our LinkedIn post comment API benchmark](https://datacircle.dev/best-linkedin-post-comment-api.txt) yet.
This plan is free. We rank 123 plans for LinkedIn post comment APIs by price. Half the plans cost $0.49 per 1,000 comments or less.
[EveryInfra's $500 pack](https://datacircle.dev/linkedin-post-comment-apis/everyinfra/500-pack-monthly-top-up-discount-10-off-from-500/llms.txt) costs the least per 1,000 comments: $0.0025. EveryInfra charges for each page of results. We count 200 comments on each page to get the $0.0025 price.
[ExportComments's $220 monthly plan (/api/v1/batch-export)](https://datacircle.dev/linkedin-post-comment-apis/exportcomments/220-monthly-business-post-api-v1-batch-export/llms.txt) covers any number of comments. ExportComments's $220 monthly plan costs less up front than EveryInfra's $500 pack.
[Fetchin](https://datacircle.dev/linkedin-post-comment-apis/fetchin/50-monthly-subscription-50k-get-api-v1-post-comments/llms.txt), [HarvestAPI](https://datacircle.dev/linkedin-post-comment-apis/harvestapi/20-pack/llms.txt) and [AnyAPI](https://datacircle.dev/linkedin-post-comment-apis/anyapi/top-up-from-10/llms.txt) are the best LinkedIn post comment API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/linkedin-post-comment-apis/keyapi/free
- [LinkedIn post comment API: 14 providers compared](https://datacircle.dev/best-linkedin-post-comment-api.txt)
- Get it: https://keyapi.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing#pricing
- Request: `GET https://api.keyapi.ai/v1/linkedin/get_post_comments`
- API key: with the plan, on https://keyapi.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing#pricing
- Its API docs: https://docs.keyapi.ai/en/linkedin/get_post_comments?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing
- Sold by: KeyAPI (https://www.keyapi.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing)
- Checked: 2026-11-02

## In the answer

- Completeness: 100%
- Comment: ✓
- Commenter: ✓

## Price

- $ per 1,000 comments: $0.00
- Per: page, size not stated
- Billing: free

## Aggregators

- Aggregators: none

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Fetch comments of a post by its activity urn.

## Data

- Freshness: live
- Keep data: no API terms
- Use data: Your use of data retrieved through KeyAPI remains subject to the terms and privacy policies of the respective platforms.

## Plan

- Pay: $0
- You get: 50 credits
- Enough for: 10 pages, once
- Expires: 3 days

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: urn. Optional: sort_by, page, pagination_token, share_urn
- Method: GET
- Path: /v1/linkedin/get_post_comments

## About the plan

- Plan: Free
- Who can get it: anyone

## The 15 fields the plan's answer can hold

request ID, commenter name, commenter headline, commenter picture, commenter URL, commenter URN, created at timestamp, date, comment URL, pinned, replies, text, thread ID, next cursor, total results

## KeyAPI's plans (5)

- [KeyAPI, free](https://datacircle.dev/linkedin-post-comment-apis/keyapi/free/llms.txt): $0.00 per 1,000, 100% complete, live
- [KeyAPI, $59 monthly](https://datacircle.dev/linkedin-post-comment-apis/keyapi/59-monthly/llms.txt): 100% complete, live
- [KeyAPI, $189 monthly](https://datacircle.dev/linkedin-post-comment-apis/keyapi/189-monthly/llms.txt): 100% complete, live
- [KeyAPI, $439 monthly](https://datacircle.dev/linkedin-post-comment-apis/keyapi/439-monthly/llms.txt): 100% complete, live
- [KeyAPI, contact us](https://datacircle.dev/linkedin-post-comment-apis/keyapi/contact-us/llms.txt): 100% complete, live

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

- `GET /v1/linkedin/get_post_comments`: [KeyAPI, free](https://datacircle.dev/linkedin-post-comment-apis/keyapi/free/llms.txt)

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## KeyAPI: LinkedIn post comment API alternatives

- [Fetchin, free, GET /api/v1/post/comments](https://datacircle.dev/linkedin-post-comment-apis/fetchin/free-free-get-api-v1-post-comments/llms.txt): $0.00 per 1,000, 100% complete, live
- [HarvestAPI, free, GET /linkedin/post-comment-replies](https://datacircle.dev/linkedin-post-comment-apis/harvestapi/free-free-get-linkedin-post-comment-replies/llms.txt): $0.00 per 1,000, 100% complete, live
- [Social Fetch, free](https://datacircle.dev/linkedin-post-comment-apis/social-fetch/free/llms.txt): $0.00 per 1,000, 100% complete, live
- [RouterGrowth, free](https://datacircle.dev/linkedin-post-comment-apis/routergrowth/free/llms.txt): $0.00 per 1,000, 100% complete, live
- [JustOneAPI, free](https://datacircle.dev/linkedin-post-comment-apis/justoneapi/free/llms.txt): $0.00 per 1,000, 100% 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 2026-11-02.

- https://docs.keyapi.ai/en/linkedin.openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing
- https://docs.keyapi.ai/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing
- https://keyapi.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing
- https://www.keyapi.ai/apis/linkedin?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing
- https://www.keyapi.ai/privacy-policy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=linkedin-post-comment-api-pricing