GoDaddy API allows interacting with the GoDaddy system. The API can be used by anyone who wants to programmatically access GoDaddy services. GoDaddy API is offered to all users free of charge.You will need an API Key and Secret to authenticate and authorize your requests.
GoDaddy provides a free domain name valuation API. It's an interface open to public and login is not mandatory. However it allows more multiple checks when API key and API secret are provided. If no API credentials are provided, the server responds with a "login to increase your rate limit" error message after consecutive requests.
Godaddy API is quite complex for most people. If you don't want the hassle of reading Godaddy API documentation, it's a good idea to choose a simple program that works well for you.
Vovsoft Bulk Domain Appraisal is a PC software that utilizes the GoDaddy valuation API by default. You can easily calculate multiple domain name values with this tool and get an accurate report of how much your domain names are worth.