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 2026-09-26T02:27:28Z in 0.299 seconds.

total:

877

page:

size:

items:

10 results

id:
b7bb2a79796aeb301fc55b8542ec7568
urn:
URN:NBN:no-nb_digibok_2012110906068
title:
Gravitational lensing and gamma-ray bursts as cosmological probes
creators:
1 results
1. Jaunsen, Andreas Ortmann
year:
2000
publisher:
Institute of Theoretical Astrophysics, 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_2012110906068_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b7bb2a79796aeb301fc55b8542ec7568
id:
a056f542b7c9009425aba9c7609fa93b
urn:
URN:NBN:no-nb_digibok_2025110409769
title:
Cultural identity as a constitutive value and factor of local society
creators:
2 results
1. Wieruszewska, Maria
2. EADI General Conference Oslo 1990 6
year:
1990
publisher:
European Association of Development Research and Training Institutes (EADI)
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_2025110409769_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a056f542b7c9009425aba9c7609fa93b
id:
ff1c6a1a5fb8e5ee0a21b165c429e36f
urn:
URN:NBN:no-nb_digibok_2009111700025
title:
Measurement as basis for emission reductions : VOC, PAH, PCB and dioxins in air in Ostrava : sluttrapport
creators:
1 results
1. Braathen, Ole-Anders
year:
1996
publisher:
Norsk institutt for luftforskning
media_types:
1 results
1. bøker
languages:
3 results
1. eng
2. nob
3. mul
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_2009111700025_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ff1c6a1a5fb8e5ee0a21b165c429e36f
id:
c99a92fe5874ff8990ccadfb7f394a76
urn:
URN:NBN:no-nb_digibok_2018022309508
title:
The rise and fall of Ethiopian empires : an analysis of state capacity and legitimacy as determinants of regime-breakdown
creators:
1 results
1. Lohne, Olav
year:
1994
publisher:
[O.Lohne]
media_types:
1 results
1. bøker
languages:
1 results
1. nob
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_2018022309508_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c99a92fe5874ff8990ccadfb7f394a76
id:
af13e739d4a0b95b3a81b8938998cf2b
urn:
URN:NBN:no-nb_digibok_2025110506068
title:
Support as possibility : lived experiences of support in the lives of young persons with mental health problems: a hermeneutic phenomenological study
creators:
3 results
1. Sommer, Mona E. (Mona Elisabeth)
2. Universitetet i Sørøst-Norge
3. Universitetet i Sørøst-Norge Fakultet for helse- og sosialvitenskap
year:
2019
publisher:
University of South-Eastern Norway
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_2025110506068_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/af13e739d4a0b95b3a81b8938998cf2b
id:
d5577386e762d5a96b156f215791420b
urn:
URN:NBN:no-nb_digibok_2014070848081
title:
Folkemusikk, klassisk, jazz, blues, hardcore, rock, underholdningsmusikk
creators:
1 results
1. Musikkdistribusjon AS
year:
1993
publisher:
Musikkdistribusjon (Mudi)
media_types:
1 results
1. bøker
languages:
1 results
1. nob
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_2014070848081_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d5577386e762d5a96b156f215791420b
id:
06e04e28e559dcaa50aed242dc8d163c
urn:
URN:NBN:no-nb_pliktmonografi_000078731
title:
BDSM – Et etisk forsvar = : BDSM – An Ethical Defence
creators:
1 results
1. Holmen, Heine Alexander
year:
2025
publisher:
Universitetsforlaget
media_types:
1 results
1. artikler
languages:
1 results
1. nor
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_000078731_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/06e04e28e559dcaa50aed242dc8d163c
id:
8a602bdf8b9f06e623c3325a391ccffe
urn:
URN:NBN:no-nb_digavis_finansavisen_null_null_20190715_28_160_1
title:
Finansavisen
creators:
not reported by source
year:
20190715
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_20190715_28_160_1-1_001_hovedavis/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8a602bdf8b9f06e623c3325a391ccffe
id:
332fadd2029f33e1c1a40b4ed7e989b5
urn:
URN:NBN:no-nb_digavis_finansavisen_null_null_20200812_29_186_1
title:
Finansavisen
creators:
not reported by source
year:
20200812
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_20200812_29_186_1-1_001_hovedavis/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/332fadd2029f33e1c1a40b4ed7e989b5
id:
f95744b62d09e0953137a3152fa87283
urn:
URN:NBN:no-nb_digibok_2016120748554
title:
Investigation of the concentration of lactic acid in blood and urine : under physiologic and pathologic conditions
creators:
1 results
1. Jervell, Otto
year:
1928
publisher:
The Physiological Institute, 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_2016120748554_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f95744b62d09e0953137a3152fa87283

limit:

offset:

returned:

has_more_results:

yes

truncated:

yes

next_offset:

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.