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How to find API key of integrated Fulfillment providers

API is a unique key of an account which a provider generates in order to allow third parties, like teeinblue, to connect and send orders to.


Hence, you need to copy and paste the API key of your account to Fulfillment Providers page, so teeinblue can identify and send orders to the correct account.


Connecting to Fulfillment Providers


merchOne API key


  • Go to Stores page > Create a new store by clicking button Connect under Create your custom store



Please be sure to choose the Create custom store if you use Teeinblue to send orders to merchOne.


In this step, please enter all the information:



Once you are done, go to the Settings Page to get the API KEY



Scroll down a little bit, and you should see this section:



Copy the API Key you see there, and paste it into the teeinblue application:



On the same page in teeinblue portal, copy the Webhook URL under API section



Go back to merchOne platform > and paste it there:


Printful API key


As of September 30th, 2022, it won’t be possible to generate new Printful API keys, and on March 30th, 2023, all existing API keys will stop working. Instead, you’ll access Printful’s API using private tokens and public apps. All Teeinblue users connecting to Printful will have to change their keys on Sep 29th. Please continue reading below to find out more on how to create your new Access Key


  • Login to your account at developers.printful.com/login
  • Navigate to Token Page > Click on the + Add new Token button
  • Fill in all the necessary information there.


Required information


  • In the Scopes section, you must enable all options to make it possible to send orders from Teeinblue to Printful


Be sure to check all the boxes


  • Once you are done, you will get a new Accesss Key:


Your Access Key


  • Go to the Fulfillments page in Teeinblue and paste the copied Access Key


Copying the Access Key


  • Click Save


  • Then, click on Select a store dropdown menu. It will show you a list of stores on your Printful account. You can then select a Store you want to send orders to.


Selecting your Store


  • Once you have selected your Store, click Save again


  • You are now successfully connected to Printful!

CustomCat API key


  • Login to your Customcat account at app.customcat.com.
  • Go to My stores page > create a new store with Create API Order method.


  • Go to Settings page. Select the store you've just created.


  • Go to API tab > Copy the API key with Read/Write access.


  • Copy and paste it to teeinblue's Fulfillments Providers > Customcat Page.

Dreamship API key


  • Login to your Dreamship account at dreamship.com/app
  • Click on Settings > API page
    If you don't find the "API" page, please contact Dreamship support to open access.


  • Find the API section



  • Click button "Show" to check for API key > Click button "Copy" to copy API key


  • Copy and paste it to teeinblue's Fulfillment Providers > Dreamship page


Next, you need to connect Webhook so Teeinblue can receive tracking code from Dreamship when an order is fulfilled.


  • In Teeinblue, copy the Webhook URL in the Dreamship page



  • Go to Dreamship > Settings > API > In the "Webhook URL", click on Add Webhook URL > paste the Webhook URL from Teeinblue > click Add:




  • In the Advanced Webhooks, click Enable button



  • Next, move to the Webhook URLs section above > Click Manage Subcriptions > Tick all the information within the popup Webhook Subscriptions > Click Save and close popup



ShineOn API key


  • Sign up your account at app.shineon.com.
  • Then, choose "Selling somewhere else"



  • Copy and paste the token to API key field in teeinblue's Fulfillment Providers > ShineOn page

Gelato API key




  • Enter any name for this new API Key (eg. your store name) > Create key



  • Click Copy to clipboard and paste the key to API key field in teeinblue's Fulfillment Providers > Gelato page

Shirtee API key


  • Sign in to your account at https://dashboard.shirtee.cloud/
  • Go to Settings menu > My account > copy the value in Authentication API
    (If you don't find "Authentication API" in your settings, please contact Shirtee support to open it for you)



  • Paste the key to API key field in teeinblue's Fulfillment Providers > Shirtee page.

Printify API key



  • In API tokens, generate a new token > enter any name > choose All scopes (full access) > Generate token
  • Copy the API key in the blue box



  • Paste the key to API key field in teeinblue's Fulfillment Providers > Printify page.
  • Click Save
  • Choose your store name in the Select a store > Save.

Printway API key

  • Register for an Printway Account
  • Navigate to Stores > Choose your Store's Platform



  • Select Shopify



  • Continue to click on Get the App to install the Printway App



  • Once you are done, go back to your Stores panel, and click on Connect APIs



  • Copy paste the API Key back to the App



Marketprint API key

Watch this tutorial to learn more: https://vimeo.com/939559111/32080cf90a?share=copy


Printbelle API Key



  • Once you have registered for an account, simply go back to Teeinblue App > Fulfillment Providers > select Printbelle to finish the connection process
  • Enter your registered account here:
  • You are now connected to Printbelle and can import their products as well as send orders to them!
Check out this video for a step-by-step guide on connecting the API to Printbelle, setting up a campaign, and sending orders to them.


Updated on: 03/02/2025

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