# Promo seeker: Auto-find promo codes with SerpAPI and Gemini: n8n workflow

> Started by an incoming Telegram message, and works across Gmail, Telegram and n8n data table. It hands the judgement calls to OpenRouter.

Source: https://millionrounds.com/workflow/promo-seeker-auto-find-promo-codes-with-serpapi-and-gemini (Millionrounds; every figure on the page links to its filing or article)

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

# Promo seeker: Auto-find promo codes with SerpAPI and Gemini

Started by an incoming Telegram message, and works across Gmail, Telegram and n8n data table. It hands the judgement calls to OpenRouter. 16 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: OpenRouter

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fpromo-seeker-auto-find-promo-codes-with-serpapi-and-gemini)

**16 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**3** Services it connects to

## The flow

Starts it 5 Model 4 Logic 3 Service 4

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

- 1 **SerpAPI** Tool Serp Api *Model*
- 2 **Gemini 2.5Pro** Lm Chat Open Router *Model*
- 3 **Schedule Trigger** Schedule trigger *Starts it*
- 4 **Telegram Trigger** Telegram trigger *Starts it*
- 5 **Structured Output Parser** Output Parser Structured *Model*
- 6 **On form submission** Form trigger *Starts it*
- 7 **Webhook** Webhook *Starts it*
- 8 **Promo Seeker Agent** Agent *Model*
- 9 **No Operation, do nothing** No Op *Logic*
- 10 **Upsert row(s)** Data Table *Service*
- 11 **Platform** Set *Logic*
- 12 **Get row(s)** Data Table *Service*
- 13 **Code Exist?** If *Logic*
- 14 **notify telegram** Telegram *Service*
- 15 **Send a message** Gmail *Service*
- 16 **Respond to Webhook** Respond To Webhook *Starts it*

## How it's built

- **Starts on:** An incoming Telegram message
- **Steps:** 16, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Telegram, n8n data table
- **Model:** OpenRouter

## Questions

What does it need to run?

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

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

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

How long does it take to set up?

Plan an afternoon. 16 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 16 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%2Fpromo-seeker-auto-find-promo-codes-with-serpapi-and-gemini)
- **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)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)[n8n data table](https://millionrounds.com/workflows?service=n8n+data+table#library)

## Workflows like it

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

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- [**AI speech coach & generator with Telegram and Open AI** 16 steps · calls a model · Telegram](https://millionrounds.com/workflow/ai-speech-coach-and-generator-with-telegram-and-open-ai)
- [**Analyze high-priority tenders from Airtable** 16 steps · calls a model · Airtable, Gmail](https://millionrounds.com/workflow/analyze-high-priority-tenders-from-airtable)
- [**Analyze product ingredient photos with Telegram and Gemini** 16 steps · calls a model · Telegram](https://millionrounds.com/workflow/analyze-product-ingredient-photos-with-telegram-and-gemini)
- [**Archive and index legal PDFs from Gmail with Gemini and Sheets** 16 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/archive-and-index-legal-pdfs-from-gmail-with-gemini-and-shee)
- [**Auto n8n updater (Docker) with Gemini and Telegram** 16 steps · calls a model · Telegram](https://millionrounds.com/workflow/auto-n8n-updater-docker-with-gemini-and-telegram)