Before getting started with the "API Component", it is recommended that you read the article What's the difference between API Component and the Web Services Server Connector?
If it is available in your account, the "API" component should appear on the Welcome tab of the Build page under the Create section
If it is not available, please contact your Dell Boomi Account representative for assistance in making this available.
To use the API component, you will need to set the API type to “Advanced”.
This is found under Manage -> Atom Management -> Shared Web Server Settings -> Basic Settings in the drop down list of the
API Type field. This is also described here.
Possible values for this field are outlined within this document Shared Web Server panel - API Type
If the Advanced option is not available, please contact your Dell Boomi Account representative for assistance in making this available.
The default setting for your account is most likely either BASIC or INTERMEDIATE. It is recommended that you do not change this to ADVANCED until you are ready to deploy the API component and web service server operations designed to take advantage of the API component.
Once these features are available in your account, follow the guidance in the article Implementing the API Component and Advanced API Management