Using the keyword endpoint

Here, categories for events are listed. Events in each category can be found at the event endpoint using the query parameter keyword. The common keywords used in all events originate from the general Finnish ontology (yso), hence the format yso:p4354. Default ordering is decreasing order by the number of events found.

The most common event categories are listed in the two keyword sets helsinki:topics and helsinki:audiences, which list the YSO keywords that are present in most events to specify event main topic and audience.

Keyword text

To find keywords that contain a specific string, use the query parameter text.

Example:

keyword/?text=lapset

See the result

Free text

While the previous search is looking for the keywords containg exact matches of the search string, free_text retrieves keywords on the basis of similarity. Results are sorted by similarity.

Example:

keyword/?free_text=lapppset

See the result

Keyword source

Will restrict keywords to a specific data source.

Example:

keyword/?data_source=yso

See the result

Show only keywords with the upcoming events

To show only the keywords which are used in the upcoming events supply the has_upcoming_events query parameter.

For example:

keyword/?has_upcoming_events=True

See the result

Showing all keywords

By default, only those keywords which have listed events are displayed. You may display keywords with zero n_events with the query parameter show_all_keywords.

For example:

keyword/?show_all_keywords=True

See the result

Showing deprecated keywords

By default, deprecated keywords are not displayed. You may also display deprecated keywords with the query parameter show_deprecated.

For example:

keyword/?show_deprecated=True

See the result

Ordering

Default ordering is decreasing order by the number of events found. You may also order results by name.

For example:

keyword/?sort=name

See the result

GET /v1/keyword/?format=api&page=1537&show_all_keywords=True
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json ;utf-8
Vary: Accept

{
    "meta": {
        "count": 31675,
        "next": "https://linkedevents.api.test.hel.ninja/v1/keyword/?format=api&page=1538&show_all_keywords=True",
        "previous": "https://linkedevents.api.test.hel.ninja/v1/keyword/?format=api&page=1536&show_all_keywords=True"
    },
    "data": [
        {
            "id": "yso:p38092",
            "has_user_editable_resources": false,
            "alt_labels": [
                "General strike 1917 (Finland)",
                "marraskuun suurlakko (1917)",
                "marraskuun suurlakko 1917",
                "suurlakko (1917)",
                "suurlakko 1917",
                "novemberstrejken 1917",
                "storstrejken 1917"
            ],
            "created_time": "2023-08-16T05:11:34.276802Z",
            "last_modified_time": "2023-08-16T05:11:34.276823Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleislakko 1917",
                "sv": "generalstrejken 1917",
                "en": "Finnish general strike 1917"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p38092/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p38800",
            "has_user_editable_resources": false,
            "alt_labels": [
                "General strike 1956 (Finland)",
                "vuoden 1956 yleislakko",
                "storstrejken 1956"
            ],
            "created_time": "2023-08-16T05:11:41.523443Z",
            "last_modified_time": "2023-08-16T05:11:41.523468Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleislakko 1956",
                "sv": "generalstrejken 1956",
                "en": "Finnish general strike 1956"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p38800/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p12449",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:05:11.486442Z",
            "last_modified_time": "2023-08-16T05:05:11.486462Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleislääketiede",
                "sv": "allmänmedicin",
                "en": "general practice"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p12449/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p14540",
            "has_user_editable_resources": false,
            "alt_labels": [
                "allmänpraktiserande läkare"
            ],
            "created_time": "2023-08-16T05:05:26.021013Z",
            "last_modified_time": "2023-08-16T05:05:26.021034Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleislääkärit",
                "sv": "allmänläkare",
                "en": "general practitioners"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p14540/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p40739",
            "has_user_editable_resources": false,
            "alt_labels": [
                "appellatives",
                "appellatiivit",
                "appellativer",
                "artnamn (appellativ)"
            ],
            "created_time": "2025-03-28T04:40:36.691838Z",
            "last_modified_time": "2025-03-28T04:40:36.691850Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleisnimet",
                "sv": "appellativ",
                "en": "common nouns"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p40739/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p7974",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:08:28.115425Z",
            "last_modified_time": "2023-08-16T05:08:28.115442Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleisopetus",
                "sv": "allmän undervisning",
                "en": "mainstream education"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p7974/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p20616",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:06:25.864218Z",
            "last_modified_time": "2023-08-16T05:06:25.864237Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleisradioliitot",
                "sv": "rundradioförbund",
                "en": "broadcasting unions"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p20616/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p857",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:14:48.364801Z",
            "last_modified_time": "2023-08-16T05:14:48.364818Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleisradiotoiminta",
                "sv": "rundradioverksamhet",
                "en": "public service broadcasting"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p857/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p10455",
            "has_user_editable_resources": false,
            "alt_labels": [
                "broadcasting companies"
            ],
            "created_time": "2023-08-16T05:08:40.760476Z",
            "last_modified_time": "2023-08-16T05:08:40.760496Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleisradioyhtiöt",
                "sv": "rundradiobolag",
                "en": "public broadcasting companies"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p10455/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p17294",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:13:02.447635Z",
            "last_modified_time": "2023-08-16T05:13:02.447652Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleissivistys",
                "sv": "allmänbildning",
                "en": "general knowledge"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p17294/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p12690",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:05:12.947651Z",
            "last_modified_time": "2023-08-16T05:05:12.947669Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleissivistävä koulutus",
                "sv": "allmänbildande undervisning",
                "en": "general education"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p12690/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p23401",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Bernkonventionen",
                "Bernkonventionen om skydd av europeiska vilda djur och växter samt deras naturliga miljö"
            ],
            "created_time": "2023-08-16T05:15:35.794851Z",
            "last_modified_time": "2023-08-16T05:15:35.794869Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus Euroopan luonnonvaraisen kasviston ja eläimistön sekä niiden elinympäristön suojelusta",
                "sv": "Konventionen om skydd av europeiska vilda djur och växter samt deras naturliga miljö",
                "en": "Convention on the Conservation of European Wildlife and Natural Habitats"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p23401/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p23582",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:15:36.127041Z",
            "last_modified_time": "2023-08-16T05:15:36.127060Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus jätteen ja muun aineen mereen laskemisen aiheuttaman meren pilaantumisen ehkäisemisestä",
                "sv": "Konvention om förhindrande av havsföroreningar genom dumpning av avfall och andra ämnen",
                "en": "Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p23582/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p23678",
            "has_user_editable_resources": false,
            "alt_labels": [
                "OSPAR Convention",
                "Koillis-Atlantin merellisen ympäristön suojelua koskeva yleissopimus",
                "OSPAR-sopimus"
            ],
            "created_time": "2023-08-16T05:15:36.343377Z",
            "last_modified_time": "2023-08-16T05:15:36.343395Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus Koillis-Atlantin merellisen ympäristön suojelusta",
                "sv": "Konventionen för skydd av den marina miljön i Nordostatlanten",
                "en": "Convention for the Protection of the Marine Environment of the North-East Atlantic"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p23678/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p23157",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Barnkonventionen",
                "Lapsen oikeuksia koskeva yleissopimus",
                "Lapsen oikeuksien sopimus",
                "Lapsen oikeuksien yleissopimus",
                "FN:s konvention om barnets rättigheter"
            ],
            "created_time": "2023-08-16T05:16:52.563580Z",
            "last_modified_time": "2023-08-16T05:16:52.563600Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus lapsen oikeuksista",
                "sv": "Konventionen om barnets rättigheter",
                "en": "Convention on the Rights of the Child"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p23157/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p1955",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Maailmanperintösopimus",
                "Världsarvskonventionen"
            ],
            "created_time": "2023-08-16T05:09:52.301448Z",
            "last_modified_time": "2023-08-16T05:09:52.301468Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus maailman kulttuuri- ja luonnonperinnön suojelemisesta",
                "sv": "Konventionen om skydd för världens kultur- och naturarv",
                "en": "Convention Concerning the Protection of the World Cultural and Natural Heritage"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p1955/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p22740",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Aarhus Convention",
                "Århuskonventionen",
                "Århusin sopimus"
            ],
            "created_time": "2023-08-16T05:13:29.177650Z",
            "last_modified_time": "2023-08-16T05:13:29.177670Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus tiedon saannista, yleisön osallistumisoikeudesta päätöksentekoon sekä muutoksenhaku- ja vireillepano-oikeudesta ympäristöasioissa",
                "sv": "Konvention om tillgång till information, allmänhetens deltagande i beslutsprocesser och tillgång till rättslig prövning i miljöfrågor",
                "en": "Convention on Access to Information, Public Participation in Decision-making and Access to Justice in Environmental Matters"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p22740/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p22626",
            "has_user_editable_resources": false,
            "alt_labels": [
                "vammaissopimus",
                "FN:s handikappkonvention",
                "FN:s konvention om rättigheter för personer med funktionsnedsättning",
                "Handikappkonventionen",
                "Konventionen om funktionshindrades rättigheter",
                "Konventionen om handikappades rättigheter"
            ],
            "created_time": "2023-08-16T05:13:28.471723Z",
            "last_modified_time": "2023-08-16T05:13:28.471742Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus vammaisten henkilöiden oikeuksista",
                "sv": "Konventionen om rättigheter för personer med funktionsnedsättning",
                "en": "Convention on the Rights of Persons with Disabilities"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p22626/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p3495",
            "has_user_editable_resources": false,
            "alt_labels": [],
            "created_time": "2023-08-16T05:14:10.099413Z",
            "last_modified_time": "2023-08-16T05:14:10.099431Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Yleissopimus ympäristön suojelusta rikosoikeudellisin keinoin",
                "sv": "Europarådets konvention om straffrättsliga sanktioner till skydd för miljön",
                "en": "Convention on the Protection of the Environment through Criminal Law"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p3495/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p28841",
            "has_user_editable_resources": false,
            "alt_labels": [
                "yhteistahto",
                "allmänviljan"
            ],
            "created_time": "2023-08-16T05:15:51.479133Z",
            "last_modified_time": "2023-08-16T05:15:51.479162Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "yleistahto",
                "sv": "allmänvilja",
                "en": "general will"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p28841/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        }
    ]
}