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 2026-09-22T01:59:58Z in 0.195 seconds.

total:
3498
page:
0
size:
10
items:

10 results

  1. id:
    d4d67f2c7834fb66974c029738f45382
    urn:
    URN:NBN:no-nb_digibok_2025072506016
    title:
    Suicide statistics : national procedures and re-evaluation of 1800 deaths in Scandinavia
    creators:

    3 results

    1. Tøllefsen, Ingvild Maria
    2. Universitetet i Oslo Institutt for medisinske basalfag
    3. Universitetet i Oslo Det medisinske fakultet
    year:
    2016
    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_2025072506016_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/d4d67f2c7834fb66974c029738f45382
  2. id:
    dde2a7846ddec6ec27261a7616293e81
    urn:
    URN:NBN:no-nb_digitidsskrift_2025011583103_001
    title:
    Guidelines for ATCvet classification. 2024 26
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2024
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    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_digitidsskrift_2025011583103_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/dde2a7846ddec6ec27261a7616293e81
  3. id:
    7c17d8beeecd14d58e9c8512035a012b
    urn:
    URN:NBN:no-nb_pliktmonografi_000016956
    title:
    Quality aspects of the Norwegian cause of death statistics
    creators:

    1 results

    1. Ellingsen, Christian Lycke
    year:
    2023
    publisher:
    University of Bergen
    media_types:

    1 results

    1. bøker
    languages:

    2 results

    1. eng
    2. 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_pliktmonografi_000016956_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/7c17d8beeecd14d58e9c8512035a012b
  4. id:
    5c4128b07908ee9c813873f84557eefb
    urn:
    URN:NBN:no-nb_digitidsskrift_2023110983090_001
    title:
    Guidelines for ATCvet classification. 2021 23
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2021
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    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_digitidsskrift_2023110983090_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/5c4128b07908ee9c813873f84557eefb
  5. id:
    bd0fcbcfcf8353807e89123f14252341
    urn:
    URN:NBN:no-nb_digitidsskrift_2025011583102_001
    title:
    Guidelines for ATCvet classification. 2023 25
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2023
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    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_digitidsskrift_2025011583102_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/bd0fcbcfcf8353807e89123f14252341
  6. id:
    08a5ce389f789ede241680e53504110c
    urn:
    URN:NBN:no-nb_digitidsskrift_2024082383105_001
    title:
    Guías para la clasificación ATC y la asignación de DDD. 2024 25
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2024
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. spa
    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_2024082383105_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/08a5ce389f789ede241680e53504110c
  7. id:
    b2948b785c4bd3f51d984ee27f80edb7
    urn:
    URN:NBN:no-nb_digitidsskrift_2024022280059_001
    title:
    Guías para la clasificación ATC y la asignación de DDD. 2017 Vol. 18
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2017
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. spa
    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_2024022280059_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/b2948b785c4bd3f51d984ee27f80edb7
  8. id:
    bb3eae7d267fddbb65fe55b77c517f60
    urn:
    URN:NBN:no-nb_digitidsskrift_2024082383106_001
    title:
    Guidelines for ATCvet classification. 2022 24
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2022
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    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_digitidsskrift_2024082383106_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/bb3eae7d267fddbb65fe55b77c517f60
  9. id:
    c8f29776a8833015322b272d66e8e5d1
    urn:
    URN:NBN:no-nb_digitidsskrift_2024022280059_002
    title:
    Guías para la clasificación ATC y la asignación de DDD. 2018 Vol. 19
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2018
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. spa
    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_2024022280059_002_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/c8f29776a8833015322b272d66e8e5d1
  10. id:
    0b9a134d6f2c0d64c66c3220ef5c4ea5
    urn:
    URN:NBN:no-nb_digitidsskrift_2024022280059_004
    title:
    Guías para la clasificación ATC y la asignación de DDD. 2020 Vol. 21
    creators:

    1 results

    1. WHO Collaborating Centre for Drug Statistics Methodology
    year:
    2020
    publisher:
    WHO Collaborating Centre for Drug Statistics Methodology
    media_types:

    1 results

    1. tidsskrift
    languages:

    1 results

    1. spa
    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_2024022280059_004_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/0b9a134d6f2c0d64c66c3220ef5c4ea5
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

Is data missing or incorrect? Send feedback about this result.

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.