Gmail OpenAI n8n your machine Marketing & Growth SELF-HOSTED AUTOMATION 3 SERVICES · BYO CREDENTIALS

Product Marketing & Growth

Agent Review Star

Review-Star Agent helps local businesses generate more positive Google Maps reviews while protecting their online reputation.

Founding seller Added 2026-07-22 Updated 2026-07-26
Works with Marketing & Growth Self-hosted stack

Includes 1 item · 14-day refund if it doesn't work as described

Price $49.00 one-time · then $22.90/mo in services you run yourself
Update policy: Updates included
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Production readiness

Starter

0 of 5 production pillars met

  • Compatibility tested
  • Evaluated
  • Security screened
  • Tools & integrations
  • Memory & state
  • Per-run observability coming soon
Self-hosted automation stack

What you run, and what it costs you

A self-hosted n8n workflow with 0 webhook(s) feeding 2 AI agent(s) (Gmail, OpenAI). Imported draft — review before publishing.

Self-hosted Runtime: n8n needs 3 services · ~$22.90/mo
01

Services you bring

Accounts you sign up for, billed by them — not by Sigrix.
n8n The automation host you self-host; runs the workflow and its webhooks. Self-hosted (e.g. ~$5/mo on a small VPS); n8n itself is source-available. Sign up ↗
Gmail Sends and reads email. Free tier. Sign up ↗
OpenAI The chat model behind the AI agents. Usage-based. Sign up ↗
02

Credentials you provide

BYO — never embedded

No secrets ship inside the download. The package arrives with empty credential slots. You paste your own keys into your own n8n; nothing you enter is transmitted to Sigrix or to the seller.

  • Google Sheets Oauth2 Api for n8n Authenticates the Google Sheets Oauth2 Api integration. You supply
  • Gmail OAuth credential for Gmail Authenticates the Gmail integration. You supply
  • OPENAI_API_KEY for OpenAI Authenticates the OpenAI integration. You supply
03

How it connects

13 connections
  1. 01 Retrieve Appointments Appointments from the Past 24 Hours data flow
  2. 02 Appointments from the Past 24 Hours Appointments Found? data flow
  3. 03 AI Agent Gmail data flow
  4. 04 AI Agent Mark as Sent data flow
  5. 05 Gmail AI Agent data flow
  6. 06 AI Agent Parse Sentiment data flow
  7. 07 Parse Sentiment Positive? data flow
  8. 08 Positive? Gmail data flow
  9. 09 Positive? Negative? data flow
  10. 10 AI Agent OpenAI chat completion
  11. 11 Appointments Found? AI Agent data flow
  12. 12 Negative? Gmail data flow
  13. 13 Every Day at 10:00 AM Retrieve Appointments data flow
04

Recurring cost

Charged monthly by the services above
Estimated running cost $22.90/mo You pay this to the services above, every month, for as long as the automation runs — it is not part of the listing price.
Assumes
  • Assumptions: 30 customers per month, n8n Cloud Starter billed annually, two OpenAI calls per customer, and free Gmail and Google Sheets accounts.
  • Monthly cost breakdown:
  • n8n Cloud Starter: $22.82
  • OpenAI API: $0.08
  • Gmail: $0.00
  • Google Sheets: $0.00
  • Total: $22.90
What you get

Everything in the package

Includes 1 item
  • A ready-to-import n8n workflow with two automated review-management flows A preconfigured Google Sheets template for customer and appointment tracking
Overview

What this does

Review-Star Agent helps local businesses generate more positive Google Maps reviews while protecting their online reputation. It automatically sends personalized follow-up messages after each appointment and uses AI to analyze customer sentiment. Satisfied customers receive a direct review link, while negative feedback is privately routed to the business owner for a quick response. The result is more reviews, stronger customer relationships, and less manual work.

About this listing

Frequently asked questions

Answered by the seller, about this listing specifically.

  • What does Agent Review Star do?

    Review-Star Agent helps local businesses generate more positive Google Maps reviews while protecting their online reputation. It automatically sends personalized follow-up messages after each appointment and uses AI to analyze customer sentiment. Satisfied customers receive a direct review link, while negative feedback is privately routed to the business owner for a quick response. The result is more reviews, stronger customer relationships, and less manual work.

  • Who is Agent Review Star best for?

    Agent Review Star is built for marketing & growth use cases and is particularly useful for Google Reviews, Reputation Management, Customer Feedback, Sentiment Analysis, and n8n Automation.

  • What do I get with Agent Review Star?

    A ready-to-import n8n workflow with two automated review-management flows A preconfigured Google Sheets template for customer and appointment tracking

  • How much does Agent Review Star cost?

    Agent Review Star is priced at $49.00 on Sigrix.

  • Can I customize Agent Review Star after I get it?

    Yes — once you own Agent Review Star on Sigrix the deliverables are yours to adapt to your own data and workflow rather than starting from scratch.

Buying on Sigrix The same for every listing, so you only have to read it once.
How do I use this product?
Open the Instructions tab and follow the setup guide with your own accounts. Everything runs on your infrastructure — Sigrix never executes it for you.
What do I get after purchase?
Immediate access to every file in the package, the full setup guide, and free updates to this listing for as long as you own it.
Where can I find support references?
Support comes from the seller; their profile lists how to reach them. Your certificate and product identifiers are in the Ownership tab, and Sigrix mediates refund requests within 14 days.