Your account will be charged only for setting a task.
The cost can be calculated on the Pricing page.
Setting ‘Keywords For Keywords’ Tasks
Note that Google Ads Keywords Data API is based on the latest version of the Google Ads API that has replaced legacy Google AdWords API. If you’re using DataForSEO Google AdWords API, you need to upgrade to DataForSEO Google Ads API.
This endpoint will provide relevant keywords for the specified terms. Set up to 20 keywords in the keywords array and get keyword suggestions from Google Ads. You can get up to 20,000 keyword suggestions with all essential keyword data in response to one request.
This is the Standard method of data retrieval. If you don’t need to receive data in real-time, this method is the best option for you. Set a task and retrieve the results when our system collects them. Execution time depends on the system workload.
If your system requires delivering instant results, the Live method will be a better solution. This method doesn’t require making separate POST and GET requests to the corresponding endpoints.