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.

Parameter	Requirement	JSON type	Description
`q`	required	string	Free-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
`media_type`	optional	union	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.
`language`	optional	union	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.
`county`	optional	union	Norwegian county name, e.g. "Troms", "Oslo".
`year_from`	optional	union	Restrict to items published/issued in this year range (inclusive).
`year_to`	optional	union	Restrict to items published/issued in this year range (inclusive).
`digital_only`	optional	boolean	Only items that have been digitized.
`sort`	optional	union	One of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
`page`	optional	integer	Zero-based page index.
`size`	optional	integer	Results per page, 1 to 100 (default 10).
`limit`	optional	integer	Gateway page size; default 25, maximum 100.
`offset`	optional	integer	Number 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.

q (required) Type: string. Free-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.

media_type 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.

language 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.

county Type: string. Norwegian county name, e.g. "Troms", "Oslo".

year_from Type: integer. Restrict to items published/issued in this year range (inclusive).

year_to Type: integer. Restrict to items published/issued in this year range (inclusive).

digital_only Type: yes/no. Only items that have been digitized.

sort Type: string. One of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).

page Type: integer. Zero-based page index.

size Type: integer. Results per page, 1 to 100 (default 10).

Result

Source: National Library of Norway. Retrieved 2026-09-25T18:05:04Z in 0.195 seconds.

total:

page:

size:

items:

10 results

id:
b6cee4ecd6de9765dfa94fe40f235c38
urn:
URN:NBN:no-nb_pliktmonografi_000036124
title:
Tracing hidden diversity : environmental DNA as a tool for detecting aquatic life
creators:
1 results
1. Carvalho, Cintia Oliveira
year:
2024
publisher:
Natural History Museum, Faculty of Mathematics and Natural Sciences, 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_pliktmonografi_000036124_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b6cee4ecd6de9765dfa94fe40f235c38
id:
c99b4230956de7a50c7220f65c2e9bd5
urn:
URN:NBN:no-nb_digibok_2007111304079
title:
Enhancement studies of coastal cod, Gadus morhua L : recruitment, migration, and mortality
creators:
1 results
1. Svåsand, Terje
year:
1991
publisher:
Department of Fisheries and Marine Biology, 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_2007111304079_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c99b4230956de7a50c7220f65c2e9bd5
id:
591b43c04d209f9135be3bc0ecbf0356
urn:
URN:NBN:no-nb_pliktmonografi_000007648
title:
Humoral and cellular immune responses after pandemic and seasonal influenza vaccination in humans
creators:
1 results
1. Jalloh, Sarah Larteley Lartey
year:
2022
publisher:
Universitetet i 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_pliktmonografi_000007648_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/591b43c04d209f9135be3bc0ecbf0356
id:
12ba7ec3326cb7717184ac37f355395e
urn:
URN:NBN:no-nb_digibok_2021111748062
title:
Teksten som problem : en studie av litterære samtaler i ungdomsskolen
creators:
3 results
1. Sønneland, Margrethe
2. Nasjonalt senter for leseopplæring og leseforsking
3. Universitetet i Stavanger
year:
2019
publisher:
Universitetet i Stavanger, Fakultet for utdanningsvitenskap og humaniora, Nasjonalt senter for leseopplæring og leseforskning
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_digibok_2021111748062_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/12ba7ec3326cb7717184ac37f355395e
id:
b10b086d6f762cabb3ef3294eb946cbc
urn:
URN:NBN:no-nb_digibok_2009021104034
title:
Kinetic studies on liver alcohol dehydrogenase
creators:
1 results
1. Langeland, Bjørn T.
year:
2000
publisher:
Faculty of Mathematics and Natural Sciences, 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_2009021104034_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b10b086d6f762cabb3ef3294eb946cbc
id:
a901c7bfa2333f15a8c504711135560c
urn:
URN:NBN:no-nb_pliktmonografi_000045163
title:
Characterization of novel polysaccharides and polyphenols in selected Nordic medicinal plants identified through historical sources
creators:
1 results
1. Butt, Hussain Shakeel
year:
2024
publisher:
Department of Pharmacy, Faculty of Mathematics and Natural Sciences, 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_pliktmonografi_000045163_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a901c7bfa2333f15a8c504711135560c
id:
3ebad7229b4c418e97dbf75de95da167
urn:
URN:NBN:no-nb_pliktmonografi_000066053
title:
Data-driven assessment of nutrient flows and benthic environmental impacts of Norwegian salmon cage aquaculture
creators:
1 results
1. Wang, Chun-Deng
year:
2025
publisher:
Norwegian University of Science and Technology, Faculty of Natural Sciences. Department of Biology
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_pliktmonografi_000066053_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3ebad7229b4c418e97dbf75de95da167
id:
70ab4b9fb84bbce6038d8c2cf9b61644
urn:
URN:NBN:no-nb_digavis_hamararbeiderblad_null_null_20000311_76_119_1
title:
Hamar Arbeiderblad
creators:
not reported by source
year:
20000311
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Innlandet
digital:
yes
public_domain:
no
license:
ccbyncnd
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_hamararbeiderblad_null_null_20000311_76_119_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/70ab4b9fb84bbce6038d8c2cf9b61644
id:
7e3a048cd19e74ecbb8fd489340b3dff
urn:
URN:NBN:no-nb_digibok_2024040448070
title:
A novel dual-task paradigm for evaluating the interplay between gait, cognition and hearing loss in normal aging and MCI : effects of dichotic listening during overground walking
creators:
3 results
1. Gorecka, Marta Maria
2. UiT Norges arktiske universitet
3. UiT Norges arktiske universitet Institutt for psykologi
year:
2022
publisher:
UiT The Arctic University of Norway, Faculty of Health Sciences, Department of Psychology
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_2024040448070_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7e3a048cd19e74ecbb8fd489340b3dff
id:
e76dd48ce9d8227d9a943dced4d6ffa8
urn:
URN:NBN:no-nb_digitidsskrift_2022042183164_001
title:
Kapital : tidsskrift for næringsliv, børs og økonomisk politikk. 2022 Vol. 52 Nr. 3
creators:
not reported by source
year:
2022
publisher:
Hegnar 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_2022042183164_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e76dd48ce9d8227d9a943dced4d6ffa8

limit:

offset:

returned:

has_more_results:

truncated:

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

Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
Check types, units, limits and ID formats in the parameter table.
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.

AI agent? Read the complete navigation and programming guide.