Enabling integration with EasyPost provides direct API access to shipping and logistics, when a user purchases a physical item. This allows for items to be priced based on the current price to ship an item, direct from the supplier of that service.
In order to create a EasyPost API key, you will first need to create an EasyPost account on their website.
Once logged in, click the API link shown in the left bar, as shown in the following image, by selecting your name, then API Keys. You need to copy the Production API key from this location.
Now you have your API key, you can add EasyPost to your Invision Community site. To do this, visit the following area within your admin CP
System -> Site Features -> Community Enhancements
Once here, select the "Enable" button under EasyPost.
You will then be shown the following where you need to enter the key you have just created and select 'Enable'. For EasyPost, you must have an address set up to set from, which can also be set either in this location, or it can use your settings from General Configuration if needed.
Once you have set up your required settings, you can test the EasyPost API if you would like to do so. To do this, select the "Test Settings and View Rates" button in the top right of that screen. This will present you with the following
Add a product, a member, and a destination address. You will then be shown the rates available for that chosen location.