API for Automated Fulfillment

Integrate with CustomCat's API to automatically print and
fulfill orders from your platform, software, website, etc...

No Subscription Fee!

View API Documentation

How does it work?

API stands for Application Programming Interface. APIs are used by software developers and using this solution will require extra programming from your development team. CustomCat's API will automate sending orders from your online store or platform to our system without the need for any manual order submission. Keep in mind that in order to connect to the CustomCat API, you will need to hire a software developer to handle that for you. CustomCat will not build your store or integrate the API for you.

Note: You don't need the API to use CustomCat. You can integrate your store via Shopify, WooCommerce or place orders manually using our CSV Order function. We suggest marketing and getting sales before considering to use the CustomCat API.

Option 1. I am a seller and I want to load CustomCat's product mock ups to my website AND have CustomCat fulfill my orders.

Option 2. I am a seller and I have my own product mock ups. I want to use CustomCat to ONLY fulfill my orders.

Option 3. I own a website/platform that enables sellers to upload designs and sell products. I have my own mock ups and I want to use CustomCat to ONLY fulfill my orders. I want to handle all transactions outside of CustomCat. CustomCat will charge me directly for fulfillment and will NOT provide support for my sellers.

Option 4. I own a website/platform/software that enables users to sell products. I want my sellers to use CustomCat features and technology to upload designs and generate products to sell on my site(s). I want CustomCat to handle all seller transactions and I am not involved. CustomCat will provide support for my sellers.

Why Sellers Choose CustomCat


We've been in the custom apparel decoration business since 1999. Since then, we have fine-tuned the most efficient in-house production system for on-demand decoration and fulfillment.


We've invested millions into the most state-of-the-art equipment and have created unique processes for the highest quality decoration in the industry.


We average 2-3 business days for order fulfillment. We decorate over 10,000 custom pieces daily and can quickly scale 10 times our current output.


We offer the best possible pricing in the industry. Nobody comes close.

Product Depth

We provide DTG, Embroidery, and Dye Sublimation decoration for over 500 products.


. . . Once you are a member, you can access a good team of customer service agents that can help you through email and a Facebook group. The quality of the DTG and embroidery is great and if you have a problem, CC will make it right! I highly recommend them.

Ben Smith
Trust In God Products

We don't need to worry about customer service, updating orders with status / track numbers, or shipping. Plus they literally have 100's of items we can use our designs on. . . Knowing Custom Cat is focus[ed] both on me the merchant and my customers will keep us working with them for many moons to come.

The Charms of Life

I have been using Customcat for my shirt & hoodie orders. I have never had a problem and have had no complaints from my customers. I will continue to use their service.

Delilah Snow

Save Time & Money by trusting
your fulfillment to CustomCat!