API that lists all possible field and operator conditions

I am building an integration where a user will be shown a modal that allows them to create a trigger from a list of conditions.

The plan is to provide an inline group of three fields:

Field drop down picker, operation picker, and value 

Because available operation options depend on the field type. I’d like to build the list of possible combinations.  I can then use simple conditional logic to populate the operator field based on the selected field.

is there an api endpoint that returns an object with all the possibilities or will I need to manually construct them from the API documentation?

Thank you!