Web service to retrieve city / state - follow up

So far I have been able to retrieve the city and state, given a ZIP code:

With CityState as (
SELECT * FROM json_table(SYSTOOLS.HTTPGETCLOB(
SYSTOOLS.HTTPGETCLOB(
'http://ziptasticapi.com/07014', ''),
'$' columns("country" VARCHAR(10),
"city" VARCHAR(30),
"state" VARCHAR(2))) x )
SELECT "city", "state" FROM CityState

In actuality I'm building the statement dynamically, in order to have the ZIP code passed to the program. Then I'm doing a FETCH USING to get the values into my program.

This site seems to offer a very straightforward solution.

1) Are there any usage restrictions with the Ziptasticapi site? I can't seem to find any on their site.

2) Does anyone have the code to do the same thing via the Google API? I tried several variations but got lost in their nesting levels. The only semi decent example I found was Oracle code. Once I started paring it down to remove the unnecessary code (for my purposes) I did not get any results returned.

TIA.

-mark