Shawn Simister

Developer Relations, Knowledge

• Freebase
• Schema.org
• Knowledge Graph

www.freebase.com

• Open, crowd-sourced, knowledge graph.
• 1B+ facts, 40M+ topics, 2k+ types.
• Free APIs
• Creative Commons Attribution License.
• RDF Data dumps.
• A source for Google’s Knowledge Graph.

https://www.googleapis.com/freebase/v1/search
?query=daft
&filter=(all type:/music/musical_group)

{
  "status": "200 OK",
  "result": [
    {
      "mid": "/m/016j7m",
      "id": "/en/daft_punk",
      "name": "Daft Punk",
      "notable": {
        "name": "Musical Group",
        "id": "/music/musical_group"
      },
      "lang": "en",
      "score": 40.160641
    },...
  ],
  "cursor": 20,
  "cost": 16,
  "hits": 78268
}

Simple jQuery widget that can be added to any HTML form.

$(function() {
  $("#myinput").suggest({filter:'(all type:/music/musical_group)'});
});

Simple jQuery widget that can be added to any HTML form.

$("#myTags").tagit({ autocomplete: {
  source: function( request, response ) {
    $.ajax({
      url: "https://www.googleapis.com/freebase/v1/search?callback=?",
      dataType: "jsonp",
      data: { query: request.term,
              exact: false,
              limit: 6,
              prefixed: true
      }, success: function( data ) { ... }
})}}});

https://www.googleapis.com/freebase/v1/search?
filter=(all type:/film/actor contributed_to:/m/0gtt5fb)

Actors starrring in the movie The Great Gatsby (/m/0gtt5fb)

Learn more:

Search API Cookbook

Search Metaschema

{
  "status": "200 OK",
  "result": [
    {
      "mid": "/m/0dvmd",
      "id": "/en/leonardo_dicaprio",
      "name": "Leonardo DiCaprio",
      "notable": {
        "name": "Actor",
        "id": "/m/02hrh1q"
      },
      "lang": "en",
      "score": 25.49761
    }...
  ],
  "cost": 9,
  "hits": 20
}

Simple API call that can display related entities.

$("#myinput").change(function() {
  var search_service = 'https://www.googleapis.com/freebase/v1/search';
  var params = {
    'filter': $('#myinput').val(),
    'output': '(description)',
    'limit': 7
  };
  $.getJSON(search_service + '?callback=?', params, function(response) {
      for (var i=0; i<response['result'].length; i++) { ... }
  });
});

https://www.googleapis.com/freebase/v1/search?filter=
(all type:/travel/tourist_attraction (within radius:5000ft lat:48.8656 lon:2.3211))

Tourist attractions within 5000 feet of (48.8656, 2.3211) - Paris

{
  "status": "200 OK",
  "result": [
    {
      "mid": "/m/02j81",
      "id": "/en/eiffel_tower",
      "name": "Eiffel Tower",
      "notable": {
        "name": "Building",
        "id": "/architecture/building"
      },
      "lang": "en",
      "score": 23.409916
    }...
  ],
  "cost": 5,
  "hits": 10
}

Simple jQuery widget that can be added to any HTML form.

$.getJSON('https://www.googleapis.com/freebase/v1/search?callback=?', {
  'filter': '(all (within radius:5000ft lat:48.8656 lon:2.3211))',
  'output': '(description geocode)'
}, function(response) {
    for (var i=0; i<response['result'].length; i++) {
      var result = response['result'][i];
      var geolocation = result['output']['geocode']['/location/location/geolocation'][0];
      var marker = new google.maps.Marker({
          position: new google.maps.LatLng(geolocation['latitude'],
                                           geolocation['longitude']),
          map: map,
          title: result['name']
})}});

https://www.googleapis.com/freebase/v1/topic/m/0n839?
filter=/common/topic/social_media_presence

Social links for Richard Branson (/m/0n839)

https://www.googleapis.com/freebase/v1/topic/m/0n839?
filter=/common/topic/topic_equivalent_webpage

Topical links for Richard Branson (/m/0n839)

{
  "id": "/m/047v2gm",
  "property": {
    "/common/topic/social_media_presence": {
      "valuetype": "uri",
      "values": [
        {
          "text": "http://plus.google.com/111294603513237625983",
          "lang": "",
          "value": "http://plus.google.com/111294603513237625983",
          "creator": "/user/googlebot",
          "timestamp": "2013-04-22T21:21:20.000Z"
        }
      ],
      "count": 1
    }
  }
}

$("#myinput").suggest().bind("fb-select", function(e, data) {
    var topic_service = 'https://www.googleapis.com/freebase/v1/topic';
    var params = {'filter': '/common/topic'};
    $.getJSON(topic_service + data.id + '?callback=?', params, function(topic) {
      var weblinks = data.property['/common/topic/social_media_presence']['values'];
      for (var i=0; i<weblinks.length; i++) { ... }
    });
});