Find Every Reddit Post That Shares the Same Link

Given one Reddit post, list every other post that submitted the same URL, in any subreddit. The list Reddit shows under "other discussions", as JSON.

GET/api/reddit/post/{id}/duplicates$0.0015 / call

Every other Reddit post that shares this post's link.

When one article, video or product page is posted to several subreddits, each post gets its own comments. Start from any one of those posts and this returns all the others, so you can read every conversation about the same link, not only the one you found first. It is the list Reddit shows on a post's "other discussions" tab.

A text post links to itself, so it usually has no duplicates. A link post shared widely can have dozens.

Path Parameters

Parameter	Type	Required	Description
`id`	string	Yes	Reddit post id (e.g. `1sgjld3`). A `t3_` prefix is optional.

Query Parameters

Parameter	Type	Required	Description
`sort`	string	No	`num_comments` (default, most discussed first) or `new`
`crossposts_only`	boolean	No	`true` returns only crossposts (of this post, or of any other post that shares its link) and leaves out independent submissions of the same URL
`limit`	number	No	How many duplicates to return, `1`-`100` (default `100`)

This list is not paged. This endpoint reads the first 100 other discussions Reddit lists for the link, in one read, and after is always null. available says how many Reddit returned, so a smaller limit tells you how many you left out.

Example

curl -H "Authorization: Bearer $TOKEN" \
  "https://api.redditapis.com/api/reddit/post/1sgjld3/duplicates"

const response = await fetch(
  "https://api.redditapis.com/api/reddit/post/1sgjld3/duplicates",
  { headers: { Authorization: "Bearer TOKEN" } }
);
const { post, duplicates, available } = await response.json();

import requests

response = requests.get(
    "https://api.redditapis.com/api/reddit/post/1sgjld3/duplicates",
    headers={"Authorization": "Bearer TOKEN"},
)
data = response.json()

Response Shape

{
  "post": { "...": "the original post, same shape as /api/reddit/post/{id}" },
  "duplicates": [
    { "...": "each other post that shares the link, same post shape" }
  ],
  "available": 35,
  "after": null
}

post is the post you asked about. duplicates holds the others, each in the same post shape as every other posts endpoint, so subreddit, num_comments and permalink are there to decide which conversation to open next with /api/reddit/post/{id}/comments.

Errors

Status	When
`400`	The id is not a valid post id, `sort` is not `num_comments` or `new`, `crossposts_only` is not `true` or `false`, or `limit` is out of range
`404`	No post with that id exists, or it was removed or is in a private subreddit. The body carries `code: "NOT_FOUND"`

Billed at the standard read price, $0.0015 per call, whether the list is empty or full.

Independent third-party API for developers and researchers. Not affiliated with, endorsed by, or sponsored by Reddit, Inc.