Connectivity to 3rd party API that only uses XML?

I am looking to add a POST API to my site to add leads to a 3rd party site and that 3rd party site returns a response that is a combination of XML and HTTP. I am told that WIX does not support XML but only JSON, is this true or am I missing something?

Steve if you find out any info on this, I would love to know. I have been trying to do the same thing. Thanks

Steve, you are right that Corvid supports only JSON as a native communication interface. But: there is an NPM which does JSON->XML and there are some third party suppliers (like Integromat) which offer the same, using a slightly more comprehensable interface.
So in short, you should be able to do XML from Wix, just not natively.