You can get API version list via request to endpoint root path. For example:
curl -H "X-AUTH-TOKEN: fa2ec18631f94039a5b9a8b4fe8f56ad" http://127.0.0.1:8042
Sample response:
{
"versions": {
"values": [
{
"id": "v2",
"links": [
{
"href": "http://127.0.0.1:8042/v2",
"rel": "self"
},
{
"href": "http://docs.openstack.org/",
"rel": "describedby",
"type": "text/html"
}
],
"media-types": [
{
"base": "application/json",
"type": "application/vnd.openstack.telemetry-v2+json"
},
{
"base": "application/xml",
"type": "application/vnd.openstack.telemetry-v2+xml"
}
],
"status": "stable",
"updated": "2013-02-13T00:00:00Z"
}
]
}
}