Get Post Comments - Fetchin API

Get comments from a LinkedIn post

curl --request GET \
  --url https://api.fetchin.io/api/v1/post/comments \
  --header 'X-API-Key: <api-key>'

{
  "comments": [
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287957733851484162)",
      "text": "Great post! Thanks for sharing.",
      "createdAt": "2024-01-22T14:22:07.458Z",
      "reactionCount": 5,
      "author": {
        "id": "urn:li:fsd_profile:ACoAABCDEFG",
        "name": "Jane Doe",
        "headline": "Software Engineer at Tech Company",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/janedoe"
      },
      "replies": [
        {
          "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287960123456789012)",
          "text": "Totally agree with you!",
          "createdAt": "2024-01-22T14:35:00.000Z",
          "reactionCount": 2,
          "author": {
            "id": "urn:li:fsd_profile:ACoAAHIJKLM",
            "name": "John Smith",
            "headline": "Product Manager",
            "profilePictureUrl": "https://media.licdn.com/dms/image/...",
            "profileUrl": "https://www.linkedin.com/in/johnsmith"
          },
          "replies": []
        }
      ]
    },
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287958844962595073)",
      "text": "Very insightful perspective!",
      "createdAt": "2024-01-22T14:25:30.000Z",
      "reactionCount": 3,
      "author": {
        "id": "urn:li:fsd_profile:ACoAANOPQRS",
        "name": "Alice Johnson",
        "headline": "Marketing Director",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/alicejohnson"
      },
      "replies": []
    }
  ],
  "paginationToken": "MTAtMTcwNjAwMDAwMDAwMA==",
  "hasMore": true
}

GET

api

post

comments

Get comments from a LinkedIn post

curl --request GET \
  --url https://api.fetchin.io/api/v1/post/comments \
  --header 'X-API-Key: <api-key>'

{
  "comments": [
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287957733851484162)",
      "text": "Great post! Thanks for sharing.",
      "createdAt": "2024-01-22T14:22:07.458Z",
      "reactionCount": 5,
      "author": {
        "id": "urn:li:fsd_profile:ACoAABCDEFG",
        "name": "Jane Doe",
        "headline": "Software Engineer at Tech Company",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/janedoe"
      },
      "replies": [
        {
          "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287960123456789012)",
          "text": "Totally agree with you!",
          "createdAt": "2024-01-22T14:35:00.000Z",
          "reactionCount": 2,
          "author": {
            "id": "urn:li:fsd_profile:ACoAAHIJKLM",
            "name": "John Smith",
            "headline": "Product Manager",
            "profilePictureUrl": "https://media.licdn.com/dms/image/...",
            "profileUrl": "https://www.linkedin.com/in/johnsmith"
          },
          "replies": []
        }
      ]
    },
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287958844962595073)",
      "text": "Very insightful perspective!",
      "createdAt": "2024-01-22T14:25:30.000Z",
      "reactionCount": 3,
      "author": {
        "id": "urn:li:fsd_profile:ACoAANOPQRS",
        "name": "Alice Johnson",
        "headline": "Marketing Director",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/alicejohnson"
      },
      "replies": []
    }
  ],
  "paginationToken": "MTAtMTcwNjAwMDAwMDAwMA==",
  "hasMore": true
}

Endpoint

GET /api/v1/post/comments

Authentication

Include your API key in the request header:

X-API-Key: your-api-key-here

Parameters

postUrlOrUrn

string

required

LinkedIn post URL or URN.Examples:

https://www.linkedin.com/posts/username_some-post-slug-1234567890-abcd
urn:li:activity:7287782484287606784
urn:li:ugcPost:7287782484287606784

count

integer

default:"100"

Number of comments to fetch per page.

Minimum: 1
Maximum: 100
Default: 100

start

integer

default:"0"

Offset for pagination.

Default: 0

paginationToken

string

Token for fetching the next page of comments. Returned from previous request when more comments are available.

Response

comments

array

Array of LinkedIn comments

Show Comment object

urn

string

Unique comment identifier

text

string

Comment text content

createdAt

string

ISO 8601 timestamp of when the comment was posted

reactionCount

integer

Number of reactions on the comment

author

object

required

Information about the comment author

Show Author object

string

required

LinkedIn profile URN of the comment author

name

string

required

Full name of the comment author

headline

string

required

Professional headline of the comment author

profilePictureUrl

string

required

Profile picture URL of the comment author

profileUrl

string

required

LinkedIn profile URL of the comment author

replies

array

Array of reply comments (subcomments). Each reply has the same structure as a comment, but with an empty replies array.

paginationToken

string

Token for fetching the next page of comments. Only present when more comments are available.

hasMore

boolean

Indicates whether there are more comments to fetch.

Example Request

curl -X GET "https://api.fetchin.io/api/v1/post/comments?postUrlOrUrn=urn:li:ugcPost:7287782484287606784&count=10" \
  -H "X-API-Key: your-api-key-here"

Example Response

{
  "comments": [
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287957733851484162)",
      "text": "Great post! Thanks for sharing.",
      "createdAt": "2024-01-22T14:22:07.458Z",
      "reactionCount": 5,
      "author": {
        "id": "urn:li:fsd_profile:ACoAABCDEFG",
        "name": "Jane Doe",
        "headline": "Software Engineer at Tech Company",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/janedoe"
      },
      "replies": [
        {
          "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287960123456789012)",
          "text": "Totally agree with you!",
          "createdAt": "2024-01-22T14:35:00.000Z",
          "reactionCount": 2,
          "author": {
            "id": "urn:li:fsd_profile:ACoAAHIJKLM",
            "name": "John Smith",
            "headline": "Product Manager",
            "profilePictureUrl": "https://media.licdn.com/dms/image/...",
            "profileUrl": "https://www.linkedin.com/in/johnsmith"
          },
          "replies": []
        }
      ]
    },
    {
      "urn": "urn:li:comment:(ugcPost:7287782484287606784,7287958844962595073)",
      "text": "Very insightful perspective!",
      "createdAt": "2024-01-22T14:25:30.000Z",
      "reactionCount": 3,
      "author": {
        "id": "urn:li:fsd_profile:ACoAANOPQRS",
        "name": "Alice Johnson",
        "headline": "Marketing Director",
        "profilePictureUrl": "https://media.licdn.com/dms/image/...",
        "profileUrl": "https://www.linkedin.com/in/alicejohnson"
      },
      "replies": []
    }
  ],
  "paginationToken": "MTAtMTcwNjAwMDAwMDAwMA==",
  "hasMore": true
}

Errors

See Error Handling for the full list of error codes and recommended handling.

400 — MISSING_PARAMETER / INVALID_URN
401 — INVALID_API_KEY
404 — POST_NOT_FOUND
429 — RATE_LIMITED / QUOTA_EXHAUSTED
500 — INTERNAL_ERROR
503 — SERVICE_UNAVAILABLE

Pagination

To fetch all comments from a post with many comments, use pagination:

Make an initial request without paginationToken
If hasMore is true, use the returned paginationToken in your next request
Continue until hasMore is false

async function fetchAllComments(postUrlOrUrn) {
  const allComments = [];
  let paginationToken = null;
  let hasMore = true;

  while (hasMore) {
    const params = new URLSearchParams({ postUrlOrUrn, count: '100' });
    if (paginationToken) {
      params.set('paginationToken', paginationToken);
    }

    const response = await fetch(
      `https://api.fetchin.io/api/v1/post/comments?${params}`,
      { headers: { 'X-API-Key': 'your-api-key-here' } }
    );

    const data = await response.json();
    allComments.push(...data.comments);
    paginationToken = data.paginationToken;
    hasMore = data.hasMore;
  }

  return allComments;
}

Notes

This endpoint consumes 1 credit from your monthly quota per API call, regardless of the count parameter value.

Comments are returned in relevance order by default. Each comment includes its replies (subcomments) nested within.

Use the paginationToken to efficiently paginate through large comment sections without re-fetching already retrieved comments.

Authorizations

X-API-Key

string

header

required

Query Parameters

postUrlOrUrn

string

required

LinkedIn post URL or URN

Example:

"https://www.linkedin.com/posts/username_post-slug-1234567890-abcd"

count

integer

default:100

Number of comments to fetch (default: 100)

Required range: 1 <= x <= 100

start

integer

default:0

Offset for pagination (default: 0)

Required range: x >= 0

paginationToken

string

Token for fetching the next page of comments

Response

Successfully fetched comments

comments

object[]

Show child attributes

paginationToken

string

Token for fetching the next page

hasMore

boolean

Whether more comments are available

Get Posts Get Post Reactions

​Endpoint

​Authentication

​Parameters

​Response

​Example Request

​Example Response

​Errors

​Pagination

​Notes

Authorizations

Query Parameters

Response

Endpoint

Authentication

Parameters

Response

Example Request

Example Response

Errors

Pagination

Notes