# Reddit monitoring with OpenAI and Gmail: n8n workflow template

> Started by another system calling it, and works across Gmail, Reddit and Supabase. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/reddit-monitoring-with-openai-and-gmail (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Reddit monitoring with OpenAI and Gmail

Started by another system calling it, and works across Gmail, Reddit and Supabase. It hands the judgement calls to OpenAI. 13 steps, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Freddit-monitoring-with-openai-and-gmail)

**13 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**3** Services it connects to

## The flow

Starts it 3 Model 2 Logic 2 Service 6

The steps in the order they run, from what starts it.

- 1 **Schedule Trigger** Schedule trigger *Starts it*
- 2 **Webhook** Webhook *Starts it*
- 3 **Gmail** Gmail *Service*
- 4 **Get a row** Supabase *Service*
- 5 **Loop Over Items** Split In Batches *Logic*
- 6 **Get a post** Reddit *Service*
- 7 **OpenAI** Open Ai *Model*
- 8 **Get many comments in a post** Reddit *Service*
- 9 **Create a row** Supabase *Service*
- 10 **Code in JavaScript2** Code *Logic*
- 11 **Message a model** Open Ai *Model*
- 12 **Respond to Webhook** Respond To Webhook *Starts it*
- 13 **Update a row** Supabase *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 13, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Reddit, Supabase
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Gmail, Reddit and Supabase accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 13 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 13 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Freddit-monitoring-with-openai-and-gmail)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Reddit](https://millionrounds.com/workflows?service=Reddit#library)[Supabase](https://millionrounds.com/workflows?service=Supabase#library)

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**AI customer feedback analyzer with OpenAI and Gmail** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-customer-feedback-analyzer-with-openai-and-gmail)
- [**AI-powered customer feedback collection with Google Sheets** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-powered-customer-feedback-collection-with-google-sheets)
- [**Audit multi-page CRO with OpenAI and Google Sheets** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/audit-multi-page-cro-with-openai-and-google-sheets)
- [**Automate loan pre-approvals with Jotform and OpenAI** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-loan-pre-approvals-with-jotform-and-openai)
- [**Gmail AI assistant & Telegram notifier with OpenRouter** 13 steps · calls a model · Gmail, Telegram](https://millionrounds.com/workflow/gmail-ai-assistant-and-telegram-notifier-with-openrouter)
- [**Monitor Gmail for compliance risks with Gemini** 13 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/monitor-gmail-for-compliance-risks-with-gemini)