Select POST and enter: https://free.apigize.io/v1/xpath in the Request URL.
You must authenticate every API request by including an "Ocp-Apim-Subscription-Key" header.
This header should include your API Key that has already been assigned the necessary permissions.
Click here for more information.
Use the Content-Type header to specify if you want to send an XML or JSON document.
Use the Accept header to specify if you want to retrieve an XML or JSON document.
Use the XPath-Expression header to specify the xpath expression that select nodes or node-sets in the message.
In the Body select the raw radio button and then enter the XML or JSON message that you want to use.
Click on the Send button to to execute the xpath expression on the message.