You can copy the curl from postman:

Then write a small bash script like:

#!/bin/bash

# This script sends the same cURL POST request 100 times to the specified endpoint.

# Loop from 1 to 100
for i in {1..100}
do
   # Print the current request number to the console to track progress
   echo "Sending request #$i..."

   curl 'YourAPIEndpointHere'

    # Uncomment the next line if you want to add a delay between requests
#    sleep 1
done

echo "Script finished. Sent 100 requests."