Get post comments
Fetch comments for a specific post. Requires accountId query parameter.
Pass commentId (Facebook, Instagram, Reddit, TikTok) to fetch replies to a specific comment instead of the post's top-level comments. Facebook, Instagram and TikTok return the comment's replies, paged by limit/cursor; Reddit returns the focused comment thread instead. On Facebook and Instagram the requested comment itself comes back in the top-level comment field.
On Facebook, passing a COMMENT id as postId (instead of using commentId) is also supported for backwards compatibility and returns that comment's replies the same way. Prefer commentId for new integrations; it also works on Instagram, which rejects a comment id passed as postId. YouTube does not support either form, postId must be a video id.
Responses are cached for up to 10 minutes, so a page may lag new comments by that window. Do not poll this endpoint for real-time updates: subscribe to the comment.received webhook, which delivers new comments as they arrive. Your own writes (creating, replying to, or deleting a comment) refresh the cache immediately.
TikTok is served for accounts connected through the TikTok for Business app: postId is the TikTok video id, each top-level comment carries up to three inline replies, and commentId pages the full reply list of one comment. Developer-app TikTok accounts return 400 with code PLATFORM_LIMITATION.
On X (Twitter), when postId is itself a reply rather than the thread's root post, only replies to that specific post are returned, not the whole conversation thread.
Hidden comments: Facebook Pages and Instagram accounts connected through Instagram Login return them with isHidden: true. Instagram accounts connected through Facebook Login do not return them at all (Meta omits them, together with their replies), so a hidden comment and a deleted one look the same on this read.
Path parameters
Zernio post ID or platform-specific post ID. Zernio IDs are auto-resolved. LinkedIn third-party posts accept full activity URN or numeric ID. On Facebook, a comment ID is also accepted here and returns that comment's replies, kept for backwards compatibility; prefer the commentId query parameter, which also works on Instagram.
Query parameters
(Reddit only) Subreddit name
Maximum number of comments to return
Pagination cursor, returned by a previous call as pagination.cursor. This is the platform's own opaque paging value passed through verbatim: never construct, decode or validate it client-side.
(Facebook, Instagram, Reddit and TikTok) Get replies to a specific comment. On Facebook and Instagram, the requested comment is returned in the top-level comment field and comments[] holds its replies.
Response
Comments for the post