A client can retrieve the capability information from the server by HTTP GET request via WEB browser: 

 GET /restconf/data/ietf-restconf-monitoring:restconf-state/capabilities  HTTP/1.1
   Host: example.com
   Accept: application/yang-data+xml


 The server might respond as follows.


   HTTP/1.1 200 OK
   Date: Mon, 23 Apr 2012 17:02:00 GMT
   Server: example-server
   Cache-Control: no-cache
   Pragma: no-cache
   Last-Modified: Sun, 22 Apr 2012 01:00:14 GMT
   Content-Type: application/yang-data+xml

<capabilities xmlns="urn:ietf:params:xml:ns:yang:ietf-restconf-monitoring">
    <capability>urn:ietf:params:restconf:capability:depth:1.0</capability>
    <capability>urn:ietf:params:restconf:capability:with-defaults:1.0</capability>
    <capability>urn:ietf:params:restconf:capability:defaults:1.0?basic-mode=explicit</capability>
    <capability>urn:ietf:params:restconf:capability:fields:1.0</capability>
    <capability>urn:ietf:params:restconf:capability:replay:1.0</capability>
    <capability>urn:ietf:params:restconf:capability:filter:1.0</capability>
    <capability>urn:ietf:params:restconf:capability:yang-patch:1.0</capability>
</capabilities>


  OR, by a curl tool: 


> curl http://restconf-dev/restconf/data/restconf-state/capabilities -H "Accept:application/yang-data+json" 
 
{
  "capabilities": {
    "capability": [
      "urn:ietf:params:restconf:capability:depth:1.0",
      "urn:ietf:params:restconf:capability:with-defaults:1.0",
      "urn:ietf:params:restconf:capability:defaults:1.0?basic-mode=explicit",
      "urn:ietf:params:restconf:capability:fields:1.0",
      "urn:ietf:params:restconf:capability:replay:1.0",
      "urn:ietf:params:restconf:capability:filter:1.0",
      "urn:ietf:params:restconf:capability:yang-patch:1.0"
    ]
  }
}


  OR, by yangcli-pro: 


yangcli-pro> sget /restconf-state/capabilities

Filling container /restconf-state/capabilities:
REST Data Reply 5 for session 0 [default]: 

capabilities {
  capability urn:ietf:params:restconf:capability:depth:1.0
  capability urn:ietf:params:restconf:capability:with-defaults:1.0
  capability urn:ietf:params:restconf:capability:defaults:1.0?basic-mode=explicit
  capability urn:ietf:params:restconf:capability:fields:1.0
  capability urn:ietf:params:restconf:capability:replay:1.0
  capability urn:ietf:params:restconf:capability:filter:1.0
  capability urn:ietf:params:restconf:capability:yang-patch:1.0
}