Final answer:
To check API calls in Chrome Developer Tools, open the tools, navigate to the 'Network' tab, and look for XHR or Fetch requests upon refreshing the page.
Step-by-step explanation:
To check API calls in Chrome Developer Tools, you should first open the Developer Tools by either right-clicking on the webpage and selecting 'Inspect' or by pressing Ctrl+Shift+I (Cmd+Option+I on Mac). Once you have the Developer Tools window open, go to the 'Network' tab.
This will show all the network requests that happen when you interact with the page. To see API calls specifically, refresh the page and watch for XHR (XMLHttpRequest) or Fetch requests, as these are commonly used to perform API calls.
You can also use the filter box to search for specific request endpoints. When you click on an API request, you will see more details, including the request headers, response headers, query string parameters, request payload, and response body.