search

Search the National Library's catalog - books, newspapers, journals, photos, maps, music, manuscripts, radio/TV and more, both physical and digitized. Digitized text (OCR) is matched too by default, so a query can surface newspaper or book pages that mention a term even when it's not in the title.

Signature: search(q: string, required; media_type: string, optional, default None; language: string, optional, default None; county: string, optional, default None; year_from: integer, optional, default None; year_to: integer, optional, default None; digital_only: yes/no, optional, default False; sort: string, optional, default None; page: integer, optional, default 0; size: integer, optional, default 10; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)

Direct GET

For navigating agents: open the HTML page with parameters in the URL. The result is fetched and displayed without screenshots or form filling.

Open this validated HTML GET URL

https://allemannsdata.com/wiki/kilder/nasjonalbiblioteket/search/?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&page=0&size=10&limit=25&offset=0

Replace {q}, {media_type}, {language}, {county}, {year_from}, {year_to}, {digital_only}, {sort}, {page}, {size} with values. Remove unused optional parameters from the URL.

For software and dashboards: Read the operation descriptor. The JSON GET template is https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&page=0&size=10&limit=25&offset=0. Open this exact request as JSON.

ParameterRequirementJSON typeDescription
qrequiredstringFree-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
media_typeoptionalunionRestrict to one type, e.g. aviser (newspapers), bøker (books), tidsskrift (journals), bilder (photos), musikk, kart (maps), film, plakater (posters), noter (sheet music), radio, fjernsyn. See get_aggregations(q="*", group_by="mediatype") for the full list with counts.
languageoptionalunionLanguage filter - values are inconsistent in the catalog (mixes codes like "nob" and labels like "Norsk bokmål"); check get_aggregations(q=q, group_by="languages") first if unsure.
countyoptionalunionNorwegian county name, e.g. "Troms", "Oslo".
year_fromoptionalunionRestrict to items published/issued in this year range (inclusive).
year_tooptionalunionRestrict to items published/issued in this year range (inclusive).
digital_onlyoptionalbooleanOnly items that have been digitized.
sortoptionalunionOne of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
pageoptionalintegerZero-based page index.
sizeoptionalintegerResults per page, 1 to 100 (default 10).
limitoptionalintegerGateway page size; default 25, maximum 100.
offsetoptionalintegerNumber of list items to skip; default 0.
Generated JavaScript, Python and response structure

Use JSON when the user requests code, machine-readable data, value extraction or further computation. Use the HTML GET page to identify the correct source and verify parameters.

Example for generated JavaScript and Python

https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&page=0&size=10&limit=25&offset=0

Replace URL placeholders and remove unused optional parameters.

JavaScript in a dashboard

const url = "https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&page=0&size=10&limit=25&offset=0";
const response = await fetch(url);
if (!response.ok) {
  const failure = await response.json();
  throw new Error(`${failure.error.code}: ${failure.error.message} ${failure.suggestion}`);
}
const result = await response.json();
const data = result.data;

Python without additional packages

import json
from urllib.request import urlopen

url = "https://allemannsdata.com/wiki/api/v1/kilder/nasjonalbiblioteket/search?q={q}&media_type={media_type}&language={language}&county={county}&year_from={year_from}&year_to={year_to}&digital_only=false&sort={sort}&page=0&size=10&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "nasjonalbiblioteket",
  "operation": "search",
  "parameters": {},
  "data": {},
  "entities": [],
  "_meta": {"retrieved_at": "...", "sources": [], "cache": {}},
  "_links": {"self": "...", "source": "...", "wiki": "...", "feedback": "..."}
}
Form for manual use

The form is a fallback for people and browser agents that cannot open the GET URL directly.

Type: string. Free-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
Type: string. Restrict to one type, e.g. aviser (newspapers), bøker (books), tidsskrift (journals), bilder (photos), musikk, kart (maps), film, plakater (posters), noter (sheet music), radio, fjernsyn. See get_aggregations(q="*", group_by="mediatype") for the full list with counts.
Type: string. Language filter - values are inconsistent in the catalog (mixes codes like "nob" and labels like "Norsk bokmål"); check get_aggregations(q=q, group_by="languages") first if unsure.
Type: string. Norwegian county name, e.g. "Troms", "Oslo".
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: yes/no. Only items that have been digitized.
Type: string. One of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
Type: integer. Zero-based page index.
Type: integer. Results per page, 1 to 100 (default 10).

Result

Source: National Library of Norway. Retrieved 2026-09-21T23:37:28Z in 0.171 seconds.

total:
8
page:
0
size:
10
items:

8 results

  1. id:
    6fd13e737969b3cfa904a58ec7c97ef3
    urn:
    URN:NBN:no-nb_digavis_finansavisen_null_null_20201102_29_256_1
    title:
    Finansavisen
    creators:
    not reported by source
    year:
    20201102
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Oslo
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_finansavisen_null_null_20201102_29_256_1-1_001_hovedavis/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/6fd13e737969b3cfa904a58ec7c97ef3
  2. id:
    ba4d6d0df405b7b21b3f681b6a3a75db
    urn:
    URN:NBN:no-nb_digitidsskrift_2025033180056_002
    title:
    Kommunal rapport (Oslo : 1987 : trykt utg.). 2013 Nr. 2
    creators:

    2 results

    1. Norske kommuners sentralforbund
    2. Kommunenes sentralforbund
    year:
    2013
    publisher:
    Kommunal rapport AS
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. nob
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2025033180056_002_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/ba4d6d0df405b7b21b3f681b6a3a75db
  3. id:
    106c6413daac5024a30dcdd5fae55e34
    urn:
    URN:NBN:no-nb_digavis_nordlys_null_null_20150515_113_128_1
    title:
    Nordlys
    creators:
    not reported by source
    year:
    20150515
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Troms
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    LIBRARY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_nordlys_null_null_20150515_113_128_1-1_001_null/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/106c6413daac5024a30dcdd5fae55e34
  4. id:
    674c5687cd5dfb7ee5b0895cfb99f180
    urn:
    URN:NBN:no-nb_digavis_finansavisen_null_null_20210129_30_24_1
    title:
    Finansavisen
    creators:
    not reported by source
    year:
    20210129
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Oslo
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_finansavisen_null_null_20210129_30_24_1-1_001_hovedavis/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/674c5687cd5dfb7ee5b0895cfb99f180
  5. id:
    1313e1456b226c8af7b0468185470984
    urn:
    URN:NBN:no-nb_digavis_finansavisen_null_null_20221031_31_253_1
    title:
    Finansavisen
    creators:
    not reported by source
    year:
    20221031
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Oslo
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_finansavisen_null_null_20221031_31_253_1-1_001_hovedavis/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/1313e1456b226c8af7b0468185470984
  6. id:
    eedd959cbf11dec597c53dc33686ce28
    urn:
    URN:NBN:no-nb_digavis_agderposten_null_null_20260731_153_175_1
    title:
    Agderposten
    creators:
    not reported by source
    year:
    20260731
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Agder
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_agderposten_null_null_20260731_153_175_1-1_001_hovedavis/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/eedd959cbf11dec597c53dc33686ce28
  7. id:
    85574100f3e4f955436944125a296ac4
    urn:
    URN:NBN:no-nb_digavis_finansavisen_null_null_20161107_25_259_1
    title:
    Finansavisen
    creators:
    not reported by source
    year:
    20161107
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Oslo
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_finansavisen_null_null_20161107_25_259_1-1_001_null/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/85574100f3e4f955436944125a296ac4
  8. id:
    fccd31f3c6becae6030052c20aef741f
    urn:
    URN:NBN:no-nb_digavis_finansavisen_null_null_20180609_27_129_1
    title:
    Finansavisen
    creators:
    not reported by source
    year:
    20180609
    publisher:
    not reported by source
    media_types:

    1 results

    1. aviser
    languages:

    1 results

    1. Norsk bokmål
    county:
    Oslo
    digital:
    yes
    public_domain:
    no
    license:
    copyrighted
    viewability:
    NONE
    access_allowed_from:
    NB
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_finansavisen_null_null_20180609_27_129_1-1_001_null/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/fccd31f3c6becae6030052c20aef741f
limit:
25
offset:
0
returned:
8
has_more_results:
no
truncated:
no
Will you use the result in generated code?

Open the same result as JSON

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Continue exploring

How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the search lookup

  1. Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
  2. Check types, units, limits and ID formats in the parameter table.
  3. Follow linked results to canonical pages before combining sources.

Misreading to avoid: An empty list means "no results for this lookup". An error message or unavailable source does not mean the data does not exist.

Source-specific next step

Go to the source page for other operations. Use the JSON template only after the HTML result shows that the parameters and source are correct.