# IP Address API: resolve domain IP addresses with MailSlup

You can use MailSlurp's REST API to query domains to determine a servers IP address. Here is an example using curl.

curl -X POST "https://api.mailslurp.com/mail-server/describe/ip-address?name=www.mailslurp.com" -H  "accept: application/json" -H  "x-api-key: YOUR_API_KEY"

Note the x-api-key header: this is your free API Key. Sign up to create an account (opens new window).

# SDKs