Mutual Authentiction on HTTPS with WordPress HTTP API?

Hi all,

I’m currently building a prototype to post data from WordPress to a Rightmove RESTful JSON API (a rental/property website in the UK – specifically the Real Time Datafeed)

Was pretty impressed that WordPress had the HTTP API actually, but upon digging deeper I’ve realised it seems to be lacking a fair few things (documentation being one!)

Does the HTTP API support mutual authentication and SSL in any way? Specifically the mutual authentication part? (involving client certificates?) As this is a requirement of the API given the sensitive nature of the data.

All I can find is that it can support SSL but nothing to do with client certificates, and basic authentication.

I’m far from an expert in these things but I’m thinking I need to go down the pure PHP route using fsock/curl

Cheers!