# Track OpenAI token usage and AI agent metrics: n8n workflow

> Started by someone opening a chat with it, and works across Google Sheets. It hands the judgement calls to a language model.

Source: https://millionrounds.com/workflow/track-openai-token-usage-and-ai-agent-metrics (Millionrounds; every figure on the page links to its filing or article)

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

# Track OpenAI token usage and AI agent metrics

Started by someone opening a chat with it, and works across Google Sheets. It hands the judgement calls to a language model. 7 steps, 1 branch: small enough to read in one sitting and change without fear.

Small Calls a model

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Ftrack-openai-token-usage-and-ai-agent-metrics)

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

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Model 2 Logic 2 Service 2

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

- 1 **When chat message received** Chat trigger *Starts it*
- 2 **Token Usage Log** Google Sheets Tool *Service*
- 3 **Set • Workflow + Client Metadata** Set *Logic*
- 4 **LangChain Chat Model + Token Callback** Code *Model*
- 5 **AI Agent** Agent *Model*
- 6 **Branch • Tool Used?** If *Logic*
- 7 **Log • Token Metrics to Sheets (Tool)** Google Sheets *Service*

## How it's built

- **Starts on:** Someone opening a chat with it
- **Steps:** 7, with 1 branch
- **Size:** Small: readable in one sitting
- **Connects to:** Google Sheets
- **Model:** A language model, family not declared

## Questions

What does it need to run?

An n8n account, plus your own Google Sheets account, and a key for a language model. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls a language model. 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%2Ftrack-openai-token-usage-and-ai-agent-metrics)
- **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.

[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)

## Workflows like it

Also research and reporting, with the same services where possible, closest in size first.

- [**AI-powered multi-timeframe trading analysis with OpenAI** 7 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-powered-multi-timeframe-trading-analysis-with-openai)
- [**Automate hospitality feedback collection & sentiment analysis** 7 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-hospitality-feedback-collection-and-sentiment-analy)
- [**Automated weekly tech stack reports with BuiltWith and OpenAI** 7 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-weekly-tech-stack-reports-with-builtwith-and-opena)
- [**Send weekly KPI summary emails from Google Sheets with Gemini** 7 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/send-weekly-kpi-summary-emails-from-google-sheets-with-gemin)
- [**Send weekly narrative client reports with Google Sheets** 7 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/send-weekly-narrative-client-reports-with-google-sheets)
- [**Stock portfolio analysis with Perplexity AI and OpenAI** 7 steps · calls a model · Google Sheets, Telegram](https://millionrounds.com/workflow/stock-portfolio-analysis-with-perplexity-ai-and-openai)