You would have to purchase the Network Analyst extension as an addition to ArcGIS Pro
An overview of the Network Analyst toolbox—ArcGIS Pro | Documentation
Hi DanPatterson, this Network Analyst extension is consuming credit 0.5 per service area. I want to solution which doesn't consume credit. Please suggest possible options.
From the doc: "The following Network Analyst tools will consume credits when the network analysis layer references ArcGIS Online as the network data source, or when you use a server connection to logistics.arcgis.com."
To avoid using credits with Network Analyst, you will need to obtain street data for your area of interest, create a network dataset on it, and run your analysis on the local data.