Free AI agent for n8n

Compose reply draft in Gmail with OpenAI Assistant

Generates draft replies in Gmail using OpenAI. Triggers on new emails, extracts content, and creates a suggested reply draft to streamline responses.

Price
Free
Setup for you
$149
Starts on
a schedule
Workflow size
13 nodes

Apps it connects

HTTP RequestGmailOpenAI

The problem

Your inbox takes up a big part of the day: sorting, replying, forwarding and copying details into other tools.

How this automation solves it

Generates draft replies in Gmail using OpenAI. Triggers on new emails, extracts content, and creates a suggested reply draft to streamline responses. It runs on a schedule and works with Gmail and OpenAI, so the work happens without anyone doing it by hand.

What changes in your business

  • Emails sorted and labelled automatically
  • Reply drafts waiting for you to approve
  • Key details copied into your records without typing

Use these to sort, label and summarise incoming email, draft replies for review, and pull invoices or orders out of the inbox into your records. It's most useful for executive teams.

Step-by-step setup (free)

  1. 1

    Get the file

    Click "Add to cart", check out free with your details, and download the workflow file.

  2. 2

    Import it into n8n

    Open n8n (n8n Cloud or your own server), create a new workflow, then choose "Import from File" from the menu and select the file. You can also paste the file contents straight onto the canvas.

  3. 3

    Connect your accounts

    Open each node that shows a warning and add your credentials for Gmail and OpenAI. Saved credentials were removed from this file, so it never uses anyone else's accounts.

  4. 4

    Set up the trigger

    Open the Schedule Trigger node and set how often it should run, for example every morning at 9am.

  5. 5

    Check the AI settings

    Pick the AI model you want to use and read through the prompts so the tone and rules match your business. The AI provider bills you for usage.

  6. 6

    Replace the placeholders

    Look for placeholder values such as you@example.com, sheet names, folder IDs and URLs, and replace them with your own.

  7. 7

    Test, then switch it on

    Run the workflow once with test data and check every node turns green. Then turn on the Active toggle so it runs by itself.

Get this automation

Get it free and set it up yourself, or have it installed and working in your account.

Do it yourself

$0

  • The complete n8n workflow file
  • Step-by-step setup guide on this page
  • Free to use in your business

Done-for-you setup

$149 one-off, delivered in 3 to 5 days

  • Installed in your own n8n account (Cloud or self-hosted)
  • Connected to your apps and accounts
  • Prompts, messages and branding adjusted to your business
  • Tested end to end with your real data
  • Short handover video and 7 days of support

Questions about this project

Is the Compose reply draft in Gmail with OpenAI Assistant automation free to download?

Yes. You can download the Compose reply draft in Gmail with OpenAI Assistant n8n workflow free and use it in your business. If you'd rather not set it up yourself, the done-for-you setup costs $149.

What do I need to use this template?

An n8n account (n8n Cloud or self-hosted) and accounts for Gmail and OpenAI. It uses AI, so the AI provider will bill you for usage.

How long does it take to set up?

If you know n8n, you can follow the steps on this page in an hour or two. With the done-for-you setup, I deliver it working in your account in 3 to 5 days.

What does the done-for-you setup include?

For $149 I install the template in your n8n account, connect your apps, adjust the prompts and messages to your business, test it with your real data, and give you a handover video plus 7 days of support.

Can the template be changed to fit my business?

Yes. Every part of an n8n workflow can be edited. If you need bigger changes, I can quote a fixed price for a custom version.

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Hunain Nasir, AI automation developer

Set up by Hunain Nasir

AI Automation Developer, 100+ automation projects built

I'm Hunain Nasir. I build GoHighLevel CRM systems, n8n and Make.com workflows and AI voice agents for businesses in the UK, USA and Australia, and I run a free shop of 361 AI agents and automations. If you'd rather not set something up yourself, I can do it for you at a fixed price.

More free Gmail & Email automations

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Want this set up for you?

I'll install it in your n8n account, connect your apps, adjust it to your business and test it. Setup starts at $99.

These projects are adapted from awesome-n8n-templates by Enes Cingoz and the original workflow authors, shared under CC BY 4.0. Changes made: removed sample data and saved credential IDs, replaced hard-coded email addresses and calendar IDs with placeholders, and rewrote some descriptions. Hunain Nasir did not create the original workflows and they are not endorsed by their authors. Always review and test a workflow before using it with real data.