Connect Ninja to Anything with Zapier: Automate Shopify Product Listings

If you run an e-commerce store, you already know the drill: every new product needs a title, a description, SEO metadata, image tags, and a dozen other fields filled out before it goes live. Multiply that by hundreds of SKUs and it stops being a task - it becomes a bottleneck.

We built the Ninja API so you can connect Ninja to the tools you already use and automate exactly this kind of work. In this tutorial, we walk through a real example: connecting Ninja to Shopify through Zapier, so that every time a new product is added, Ninja automatically generates a complete, optimized product listing.

Watch the full walkthrough

The video below covers everything from setting up the Zapier integration to seeing the finished product listing appear in Shopify - with zero manual editing.

What this automation does

The Zap we build in the video follows a simple trigger-action pattern:

• Trigger: A new product is created in Shopify (even with just a name and a few images)

• Action: Ninja receives a prompt via the API, generates a full product listing, and returns structured data

• Result: The product gets an optimized title, a compelling description, SEO metadata, and more - all written in seconds

The key here is that Ninja is not a template engine spitting out generic copy. It reads the product context - name, images, category - and writes a listing the way a good copywriter would. Except it does it in seconds, and it does it consistently across your entire catalog.

How the Ninja API works

The Ninja API is a straightforward HTTP interface. You send a prompt (just like you would in the Ninja chat), optionally define a structured output schema, and get results back. That's it.

For this automation, the Zapier integration sends a POST request to Ninja with the product details and a prompt like: "Create a complete product listing for this Shopify product. Include an optimized title, a detailed description, SEO meta title and description, and image alt tags."

Ninja processes the request, does the work, and returns the result as structured JSON - which Zapier then uses to update the product back in Shopify.

Why Zapier matters here

Zapier is the bridge. Ninja's API is powerful on its own, but Zapier is what lets you connect it to anything without writing code. Shopify is just one example. You could just as easily trigger Ninja from:

• A new row in Google Sheets

• A new order in WooCommerce

• A Slack message

• A form submission in Typeform

• A new email in Gmail

• A new lead in HubSpot

The point is: if you can trigger a Zap from it, you can have Ninja do work based on it. Product listings, customer emails, report generation, content creation - anything Ninja can do in the chat, it can do through the API.

Step-by-step overview

Here's what we cover in the video:

1. Set up a Zapier account

If you don't have one, create a free account at zapier.com. The free tier is enough to test this workflow.

2. Get your Ninja API key

Have questions? Just use the chat widget in the bottom right corner of this page - our AI assistant can help you get started.

3. Create a new Zap

Set the trigger to "New Product" in Shopify. This fires every time you add a product to your store.

4. Add a Ninja action

Use Zapier's Webhooks integration to send a POST request to the Ninja API. Include the product name, description, images, and your prompt in the request body.

5. Map the results back to Shopify

Take Ninja's structured response and use a Shopify "Update Product" action to write the optimized title, description, and SEO fields back to the product.

The video walks through each step in detail, including the exact prompt and API configuration we used.

What Ninja generates

For each product, Ninja can generate:

• An SEO-optimized product title

• A detailed, well-structured product description

• Meta title (under 70 characters)

• Meta description (under 160 characters)

• Image alt text for accessibility and SEO

• Tags and categorization suggestions

All of this is returned as structured JSON, so you can map each field exactly where it needs to go in Shopify - or any other platform.

Getting started

If you want to build this yourself:

• Sign up for Ninja at ninja.new

• Request an API key (profile icon > Contact us, or email hey@molin.ai)

• Read the API documentation

• Create a Zapier account at zapier.com

The whole setup takes about 10 minutes. Once it's running, every new product you add to Shopify gets a complete listing without you lifting a finger.

Have questions? Just use the chat widget in the bottom right corner of this page - our AI assistant can help you get started.