This is the JSON response for the /representatives/house-of-commons/?last_name=Harper API call. Get the raw JSON or read the API documentation.

{
    "objects": [
        {
            "first_name": "Stephen", 
            "last_name": "Harper", 
            "name": "Stephen Harper", 
            "elected_office": "MP", 
            "url": "http://www.parl.gc.ca/MembersOfParliament/ProfileMP.aspx?Key=170287&Language=E", 
            "gender": "", 
            "extra": {
                "honorific_prefix": "Right Hon.", 
                "preferred_language": "English"
            }, 
            "related": {
                "boundary_url": "/boundaries/federal-electoral-districts/48008/", 
                "representative_set_url": "/representative-sets/house-of-commons/"
            }, 
            "source_url": "http://www.parl.gc.ca/MembersOfParliament/MainMPsCompleteList.aspx?TimePeriod=Current&Language=E", 
            "offices": [
                {
                    "type": "legislature", 
                    "fax": "1-613-941-6900", 
                    "postal": "House of Commons\nOttawa ON  K1A 0A6", 
                    "tel": "1-613-992-4211"
                }, 
                {
                    "type": "constituency", 
                    "fax": "1-403-253-8203", 
                    "postal": "1600 - 90th Avenue SW, Suite A-203\nCalgary AB  T2V 5A8", 
                    "tel": "1-403-253-7990"
                }
            ], 
            "representative_set_name": "House of Commons", 
            "party_name": "Conservative", 
            "district_name": "Calgary Southwest", 
            "email": "stephen.harper@parl.gc.ca", 
            "personal_url": "http://www.pm.gc.ca/", 
            "photo_url": "http://www.parl.gc.ca/MembersOfParliament/Images/OfficialMPPhotos/41/HarperStephen_CPC.jpg"
        }
    ], 
    "meta": {
        "next": null, 
        "total_count": 1, 
        "previous": null, 
        "limit": 20, 
        "offset": 0
    }
}