Overview

Add a comment to a Reddit post or reply to an existing comment. Uses Reddit's Shreddit API to submit comments with rich text support.

Inputs

| Field | Type | Required | Default | Description | |-------|------|----------|---------|-------------| | postId | string | ✅ | t1_oxnxggp | Reddit post ID to comment on | | text | string | ✅ | Thanks.. | Comment text content | | commentDepths | number | ❌ | 1 | Comment nesting depth (0-10) | | parentId | string | ❌ | (empty) | Parent comment ID for replies (omit for top-level comments) |

Response

Returns the raw Reddit API response on success:

{
  "success": true,
  "data": {
    "comment": {
      "id": "t1_abc123",
      "body": "Your comment text",
      "author": "your_username",
      "created_utc": 1705312800
    }
  }
}

Error responses:

400 — Missing reCAPTCHA token ("rt is missing.."))
400 — Missing CSRF token ("csrf is missing.."))

Auth & browser

Requires browser context with active Reddit session. This endpoint needs:

A logged-in Reddit browser session
Valid CSRF token (extracted automatically from the page)
Valid reCAPTCHA token (handled automatically)

Examples

Request inputs (top-level comment):

{
  "postId": "t1_oxnxggp",
  "text": "Great post! Thanks for sharing.",
  "commentDepths": 1
}

Request inputs (reply to comment):

{
  "postId": "t1_oxnxggp",
  "text": "I agree with your point!",
  "parentId": "t1_parent123",
  "commentDepths": 2
}

Success response:

{
  "success": true,
  "data": {
    "comment": {
      "id": "t1_newcomment456",
      "body": "Great post! Thanks for sharing.",
      "author": "your_username"
    }
  }
}

Notes

Reddit uses Shreddit (their modern React app) API endpoints for comment submission
The endpoint requires both CSRF and reCAPTCHA tokens which are extracted automatically from the current page context
Comments support rich text formatting (submitted in structured format)
commentDepths controls how nested the comment appears in threads
Rate limiting applies — excessive commenting may trigger Reddit's spam protection
Empty parentId creates a top-level comment; providing a parentId creates a reply