ActionRedditUpdated September 2026

How do I post a Reddit comment?

Short answer: You can reddit add comment in Reddit by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Reddit Reddit Add Comment action to a workflow, map its 2 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Reddit Add Comment in Reddit — start free All 5 Reddit actions

Reddit Add Comment in Reddit — start free

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Parent ID (t3_xxx for post, t1_xxx for comment) thing_id	string	Required	–
Comment Text text	string	Required	–

Sample request

{
  "thing_id": "{{trigger.thing_id}}",
  "text": "{{trigger.text}}"
}

Returns

{
  "json": {
    "data": {
      "things": [
        {
          "data": {
            "id": "cmm_abc",
            "body": "Reply text",
            "name": "t1_cmm_abc",
            "permalink": "/r/test/comments/.../"
          }
        }
      ]
    }
  }
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Reddit Add Comment.

Any of these apps can fire this action as part of a workflow.

Google Sheets → Reddit

2 Google Sheets triggers

HubSpot → Reddit

18 HubSpot triggers

FAQ

Questions about Reddit Add Comment.

What does the Reddit Add Comment action do in Reddit?

Posts a comment on a post or another comment. For community-engagement workflows (auto-thank-you for mentions) or for moderator-tool automation.

What inputs does Reddit Add Comment require?

Required: Parent ID (t3_xxx for post, t1_xxx for comment), Comment Text. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Reddit returns an error?

The run history shows the failed step with its input and the error message Reddit returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does Reddit Add Comment support batch operations?

Run Reddit Add Comment inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Reddit's rate limits.

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