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=1360&show_all_keywords=True
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json ;utf-8
Vary: Accept

{
    "meta": {
        "count": 31943,
        "next": "https://linkedevents.api.test.hel.ninja/v1/keyword/?format=api&page=1361&show_all_keywords=True",
        "previous": "https://linkedevents.api.test.hel.ninja/v1/keyword/?format=api&page=1359&show_all_keywords=True"
    },
    "data": [
        {
            "id": "yso:p28382",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Tsetsenian sota",
                "ensimmäinen Tšetšenian sota",
                "toinen Tšetšenian sota",
                "andra Tjetjenienkriget",
                "första Tjetjenienkriget"
            ],
            "created_time": "2023-08-16T05:07:29.854516Z",
            "last_modified_time": "2023-08-16T05:07:29.854535Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Tšetšenian sota",
                "sv": "Tjetjenienkrigen",
                "en": "Chechen War"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p28382/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p38412",
            "has_user_editable_resources": false,
            "alt_labels": [
                "çiftetelli",
                "çiftetelli",
                "çiftetelli"
            ],
            "created_time": "2023-08-16T05:07:54.929645Z",
            "last_modified_time": "2023-08-16T05:07:54.929665Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tsifteteli",
                "en": "tsifteteli"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p38412/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p40637",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Tsimshianic languages",
                "tsimsikielet",
                "tsimšikielet",
                "tsimshianspråk"
            ],
            "created_time": "2025-03-27T04:40:25.476399Z",
            "last_modified_time": "2025-03-27T04:40:25.476419Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tsimshianilaiset kielet",
                "sv": "tsimshian (språkfamiljer)",
                "en": "Tsimshian languages"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p40637/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p39722",
            "has_user_editable_resources": false,
            "alt_labels": [
                "zoledronate",
                "tsoledronaatti",
                "zoledronat"
            ],
            "created_time": "2023-08-16T05:11:50.769979Z",
            "last_modified_time": "2023-08-16T05:11:50.769997Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tsoledronihappo",
                "sv": "zoledronsyra",
                "en": "zoledronic acid"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p39722/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p13789",
            "has_user_editable_resources": false,
            "alt_labels": [
                "lymphoma T-cellulare",
                "lymphoma T-cellulare"
            ],
            "created_time": "2023-08-16T05:05:20.274934Z",
            "last_modified_time": "2023-08-16T05:05:20.274955Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "T-solulymfooma",
                "sv": "T-cellslymfom",
                "en": "T-cell lymphoma"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p13789/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p2400",
            "has_user_editable_resources": false,
            "alt_labels": [
                "economic, social and cultural rights",
                "taloudelliset, sosiaaliset ja sivistykselliset oikeudet",
                "toisen sukupolven oikeudet",
                "ekonomiska, sociala och kulturella rättigheter"
            ],
            "created_time": "2023-08-16T05:18:15.780719Z",
            "last_modified_time": "2023-08-16T05:18:15.780737Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "TSS-oikeudet",
                "sv": "ESK-rättigheter",
                "en": "ESC rights"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p2400/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p38482",
            "has_user_editable_resources": false,
            "alt_labels": [
                "tsuktsin kieli"
            ],
            "created_time": "2023-08-16T05:07:55.602549Z",
            "last_modified_time": "2023-08-16T05:07:55.602573Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tšuktšin kieli",
                "sv": "tjuktjiska",
                "en": "Chukchi language"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p38482/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p6075",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Chukchis"
            ],
            "created_time": "2023-08-16T05:12:03.646929Z",
            "last_modified_time": "2023-08-16T05:12:03.646947Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tšuktšit",
                "sv": "tjuktjer",
                "en": "Chukchi people"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p6075/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p1176",
            "has_user_editable_resources": false,
            "alt_labels": [
                "hyökyaallot",
                "flodvågor",
                "tsunamis",
                "tsunamivågor"
            ],
            "created_time": "2023-08-16T05:18:08.924377Z",
            "last_modified_time": "2023-08-16T05:18:08.924396Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tsunamit",
                "sv": "tsunamier",
                "en": "tsunamis"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p1176/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p24820",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Tsušiman meritaistelu"
            ],
            "created_time": "2023-08-16T05:13:38.889655Z",
            "last_modified_time": "2023-08-16T05:13:38.889673Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "Tsushiman meritaistelu",
                "sv": "slaget vid Tsushima",
                "en": "Battle of Tsushima"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p24820/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p22897",
            "has_user_editable_resources": false,
            "alt_labels": [
                "tsuvassin kieli"
            ],
            "created_time": "2023-08-16T05:10:22.670927Z",
            "last_modified_time": "2023-08-16T05:10:22.670946Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tšuvassin kieli",
                "sv": "tjuvasjiska",
                "en": "Chuvash language"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p22897/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p29265",
            "has_user_editable_resources": false,
            "alt_labels": [
                "tsuvassinkielinen kirjallisuus",
                "tjuvasjisk litteratur"
            ],
            "created_time": "2023-08-16T05:11:17.933695Z",
            "last_modified_time": "2023-08-16T05:11:17.933712Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tšuvassinkielinen kirjallisuus",
                "sv": "litteratur på tjuvasjiska",
                "en": "Chuvash language literature"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p29265/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p6229",
            "has_user_editable_resources": false,
            "alt_labels": [
                "tsuvassit",
                "Chuvash people"
            ],
            "created_time": "2023-08-16T05:14:36.613737Z",
            "last_modified_time": "2023-08-16T05:14:36.613756Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tšuvassit",
                "sv": "tjuvasjer",
                "en": "Chuvashes"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p6229/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p28510",
            "has_user_editable_resources": false,
            "alt_labels": [
                "TAFTA",
                "Transatlanttinen kauppa- ja investointikumppanuus",
                "TAFTA",
                "transatlantiskt partnerskap för handel och investeringar"
            ],
            "created_time": "2023-08-16T05:11:11.052090Z",
            "last_modified_time": "2023-08-16T05:11:11.052109Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "TTIP-sopimus",
                "sv": "TTIP-avtalet",
                "en": "Transatlantic Trade and Investment Partnership"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p28510/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p28236",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Tuareg people"
            ],
            "created_time": "2023-08-16T05:07:28.539491Z",
            "last_modified_time": "2023-08-16T05:07:28.539510Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuaregit",
                "sv": "tuareger",
                "en": "Tuaregs"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p28236/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p5135",
            "has_user_editable_resources": false,
            "alt_labels": [
                "lungsot"
            ],
            "created_time": "2023-08-16T05:08:17.106109Z",
            "last_modified_time": "2023-08-16T05:08:17.106127Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuberkuloosi",
                "sv": "tuberkulos",
                "en": "tuberculosis"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p5135/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p19719",
            "has_user_editable_resources": false,
            "alt_labels": [
                "Bournevillen tauti",
                "epiloia"
            ],
            "created_time": "2023-08-16T05:06:14.890531Z",
            "last_modified_time": "2023-08-16T05:06:14.890549Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuberoosiskleroosi",
                "sv": "tuberös skleros",
                "en": "tuberous sclerosis"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p19719/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p40179",
            "has_user_editable_resources": false,
            "alt_labels": [
                "need for assistance",
                "tuentarve"
            ],
            "created_time": "2023-09-23T04:41:18.029135Z",
            "last_modified_time": "2023-11-19T04:41:36.210007Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuen tarve",
                "sv": "stödbehov",
                "en": "need for support"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p40179/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p25290",
            "has_user_editable_resources": false,
            "alt_labels": [
                "asuntolat",
                "tukiasuminen"
            ],
            "created_time": "2023-08-16T05:10:44.269133Z",
            "last_modified_time": "2023-08-16T05:10:44.269151Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuettu asuminen",
                "sv": "stödboende",
                "en": "supported accommodation"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p25290/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        },
        {
            "id": "yso:p3541",
            "has_user_editable_resources": false,
            "alt_labels": [
                "supported employment",
                "subsidized employment"
            ],
            "created_time": "2023-08-16T05:14:10.382894Z",
            "last_modified_time": "2023-08-16T05:14:10.382912Z",
            "aggregate": false,
            "deprecated": false,
            "has_upcoming_events": false,
            "n_events": 0,
            "image": null,
            "data_source": "yso",
            "publisher": "hy:kansalliskirjasto",
            "replaced_by": null,
            "name": {
                "fi": "tuettu työllistyminen",
                "sv": "stödd sysselsättning",
                "en": "subsidised employment"
            },
            "@id": "https://linkedevents.api.test.hel.ninja/v1/keyword/yso:p3541/?format=api",
            "@context": "http://schema.org",
            "@type": "Keyword"
        }
    ]
}