How to use data from an API, to create an alert?

[PopFendi]

UPDATE:

found a good video that explained lists and dictionaries quite well here

this is where I'm at so far.

import requests
import json

def search(threads, lookup1):
    number = ['no']
    for k, v in threads.items():
        try:
            if lookup1 in v:
                return number

        except:
            continue

response = requests.get('https://a.4cdn.org/biz/catalog.json')
catalog = json.loads(response.text)

for page in catalog:
    thread = page['threads']
    for threads in thread:
        search(threads, 'DOGE')

the function I've added is mostly guess work at this point, but i've managed to loop through the list of pages and I can print each individual "thread" dict now. I'm using 'DOGE' as an example keyword as mine are hardly ever mentioned, but still no luck actually returning any data.