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 2026-09-27T21:39:52Z in 0.269 seconds.

total:
24752
page:
0
size:
10
items:

10 results

  1. id:
    c2b87b48bccb8f2ab68ba36556871ce5
    urn:
    URN:NBN:no-nb_digitidsskrift_2025112580051_001
    title:
    ABCompendiet : et informasjonsmagasin fra Arne B. Corneliussen AS. 2011 Nr. 1
    creators:

    1 results

    1. Arne B. Corneliussen AS
    year:
    2011
    publisher:
    Arne B. Corneliussen 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_2025112580051_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/c2b87b48bccb8f2ab68ba36556871ce5
  2. id:
    a73361e1a08ae947880d5c387015c5ba
    urn:
    URN:NBN:no-nb_digibok_2009022304116
    title:
    Microdialysis as a tool in sleep research
    creators:

    1 results

    1. Portas, Chiara Maria
    year:
    1997
    publisher:
    Department of Physiology, University of Bergen
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2009022304116_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/a73361e1a08ae947880d5c387015c5ba
  3. id:
    d09dce4a950c36852cd750c482983036
    urn:
    URN:NBN:no-nb_digibok_2016120948065
    title:
    Brain stem and cerebellar nuclear connections of the feline lateral reticular nucleus : a light microscopic study using retrograde transport of WGA-HRP and fluorescent tracers
    creators:

    1 results

    1. Qvist, Hanne Lotherington
    year:
    1989
    publisher:
    H. L. Qvist
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2016120948065_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/d09dce4a950c36852cd750c482983036
  4. id:
    fcda94d57ef564eb69ffe871821a34e4
    urn:
    URN:NBN:no-nb_digibok_2025081806054
    title:
    Ubiquitin specific protease7 as a potential therapeutic target for gastric cancer
    creators:

    1 results

    1. Wang, Zhiru
    year:
    2021
    publisher:
    Institute for Clinical Medicine, Faculty of Medicine, University of Oslo
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    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_digibok_2025081806054_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/fcda94d57ef564eb69ffe871821a34e4
  5. id:
    406b9dc561ff51d70db5fb0e4b4791d2
    urn:
    URN:NBN:no-nb_digitidsskrift_2024040280126_001
    title:
    Birkebeiner'n : offisielt magasin for Birkebeinerrennet AS og Birkebeinerrittet AS. 2007 Vol. 19 Nr. 7
    creators:

    2 results

    1. Birkebeinerrittet
    2. Birkebeinerrennet
    year:
    2007
    publisher:
    Sport media
    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_2024040280126_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/406b9dc561ff51d70db5fb0e4b4791d2
  6. id:
    a395a4ff7a1546966e5dfa4847bb4b01
    urn:
    URN:NBN:no-nb_digibok_2026090706022
    title:
    Annexin A2 as an mRNA-binding protein
    creators:

    1 results

    1. Aukrust, Ingvild
    year:
    2007
    publisher:
    Department of Biomedicine, University of Bergen
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    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_digibok_2026090706022_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/a395a4ff7a1546966e5dfa4847bb4b01
  7. id:
    d695a88fd9feacf8700763fd96028252
    urn:
    URN:NBN:no-nb_digibok_2026070806059
    title:
    Sulfated alginates : characterization and applications as biomaterials
    creators:

    1 results

    1. Arlov, Øystein
    year:
    2016
    publisher:
    Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, Department of Biotechnology
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    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_digibok_2026070806059_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/d695a88fd9feacf8700763fd96028252
  8. id:
    26bdf15eee267082ec6e2468f8d1ffb9
    urn:
    URN:NBN:no-nb_digibok_2025082606019
    title:
    The adapter molecule TSAd as an immune modulator
    creators:

    1 results

    1. Gopalakrishnan, Ramakrishna Prabhu
    year:
    2015
    publisher:
    Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    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_digibok_2025082606019_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/26bdf15eee267082ec6e2468f8d1ffb9
  9. id:
    a19c66d725ad79f24567e8cbbfd0d7f9
    urn:
    URN:NBN:no-nb_digibok_2011011008012
    title:
    Glutamate as transmitter and toxin : synthesis, compartmentation and pathophysiology
    creators:

    1 results

    1. Laake, Jon Henrik
    year:
    1999
    publisher:
    Department of Anatomy, University of Oslo
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    digital:
    yes
    public_domain:
    no
    license:
    bokhylla
    viewability:
    NONE
    access_allowed_from:
    NORWAY
    thumbnail:
    https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2011011008012_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/a19c66d725ad79f24567e8cbbfd0d7f9
  10. id:
    51d24cb832027ab89fadfdadd528e2be
    urn:
    URN:NBN:no-nb_digibok_2026031106036
    title:
    Axl as a biomarker in breast and lung cancer
    creators:

    1 results

    1. Ahmed, Lavina
    year:
    2016
    publisher:
    University of Bergen
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    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_digibok_2026031106036_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/51d24cb832027ab89fadfdadd528e2be
limit:
25
offset:
0
returned:
10
has_more_results:
yes
truncated:
yes
next_offset:
10
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.