# Schedule weekly social media posts with OpenAI and PostFast: n8n workflow

> Started by a clock. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/schedule-weekly-social-media-posts-with-openai-and-postfast (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library)

# Schedule weekly social media posts with OpenAI and PostFast

Started by a clock. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to OpenAI. 7 steps: small enough to read in one sitting and change without fear.

Small Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fschedule-weekly-social-media-posts-with-openai-and-postfast)

**7 steps** Small: readable in one sitting

**0** Branches: places the flow splits

**0** Loops or waits

**0** Services by connector: it calls them over plain HTTP

## The flow

Starts it 1 Model 1 Logic 3 Service 2

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

- 1 **Every Monday morning** Schedule trigger *Starts it*
- 2 **Configure brand and topics** Set *Logic*
- 3 **Get connected accounts (PostFast)** Post Fast *Service*
- 4 **Select target accounts** Code *Logic*
- 5 **Write the week's posts** Open Ai *Model*
- 6 **Assign data-backed time slots** Code *Logic*
- 7 **Schedule posts via PostFast** Post Fast *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 7
- **Size:** Small: readable in one sitting
- **Connects to:** Nothing by connector; it calls services over plain HTTP
- **Model:** OpenAI

## Questions

What does it need to run?

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

What starts it?

It starts on a clock.

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?

Not long. At 7 steps it can be read in one sitting and changed without fear.

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 7 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%2Fschedule-weekly-social-media-posts-with-openai-and-postfast)
- **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.

## Workflows like it

Also scheduling, with the same services where possible, closest in size first.

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- [**Auto-generate meeting minutes with OpenAI** 7 steps · calls a model · Google Drive, Slack](https://millionrounds.com/workflow/auto-generate-meeting-minutes-with-openai)
- [**Automate meeting transcription & minutes distribution** 7 steps · calls a model · Google Drive](https://millionrounds.com/workflow/automate-meeting-transcription-and-minutes-distribution)