querying mms via restful call script

I'm very new to mongodb. I would like to be able to pull performance data from mongodb mms. Has anybody done something like this? Any pointers greatly appreciated.

MMS has a public RESTful API you can use: https://docs.mms.mongodb.com/reference/api/.

Alternatively, you can also collect raw metrics from your MongoDB deployment with the same commands used by the MMS monitoring agent:

 https://docs.mms.mongodb.com/reference/monitoring/#database-commands-used-by-the-monitoring-agent

There is an overview of common commands & monitoring tools in the MongoDB manual:
 http://docs.mongodb.org/manual/administration/monitoring/

I've build the http to call metrics via restul api calls.

curl -u "user_id:5738fe1e67528a5e44ab18b814be345d" "https://server1:8080/api/public/v1.0/groups/5345c8b07b470ca7a1354ca1/hosts/44eab9f222fc835cc4351fe6c4520a39/metrics/" --digest -i --verbose --sslv2

This is a sample 

 However, I am getting this error:

OpenSSL: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

Unable to establish SSL connection.

Can you tell what might be wrong?

I tried with 

SSLv2, SSLv3, and TLSv1, keep getting:

OpenSSL: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol

Unable to establish SSL connection.

What version of ssl mongodb uses. Is anybody able to retrieve mongodb performance data via restful api calls. please advise how were you able to do it?