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 2026-10-02T03:23:57Z in 0.215 seconds.

total:

page:

size:

items:

10 results

id:
267b64c8fb431bf5c6688c974664ebe3
urn:
URN:NBN:no-nb_digibok_2013031106012
title:
Colonization factors of enterotoxigenic Escherichia coli : detection, characterization and expression
creators:
1 results
1. Valvatne, Håvard
year:
2004
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:
bokhylla
viewability:
NONE
access_allowed_from:
NORWAY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2013031106012_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/267b64c8fb431bf5c6688c974664ebe3
id:
c8e3113eed149eca267e43c11f2aee8d
urn:
URN:NBN:no-nb_digibok_2007121100046
title:
DNA probing into fastidious gram-negative bacterial species : a search for diagnostic criteria
creators:
1 results
1. Tønjum, Tone
year:
1993
publisher:
Kaptein W. Wilhelmsen og Frues bakteriologiske institutt,Rikshospitalet (National hospital), 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_2007121100046_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c8e3113eed149eca267e43c11f2aee8d
id:
5a40e9b969be9a6b4d6c95ba30b65163
urn:
URN:NBN:no-nb_digibok_2026061506022
title:
Horizontal transfer, selection and maintenance of antibiotic resistance determinants
creators:
1 results
1. Kloos, Julia
year:
2021
publisher:
Department of Pharmacy, Faculty of Health Sciences, UiT The Arctic University of 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_2026061506022_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5a40e9b969be9a6b4d6c95ba30b65163
id:
4f062ddd81b2cf335ee0e6ff2e516f30
urn:
URN:NBN:no-nb_digibok_2025081306042
title:
Studies on streptococcal cell-to-cell signaling systems and host interactions
creators:
3 results
1. Junges, Roger
2. Universitetet i Oslo Det odontologiske fakultet
3. Universitetet i Oslo Institutt for klinisk odontologi
year:
2017
publisher:
University of Oslo, Faculty of Dentistry
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_2025081306042_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4f062ddd81b2cf335ee0e6ff2e516f30
id:
a3b493a22f0226d37ef6cd97a74acece
urn:
URN:NBN:no-nb_digibok_2020102207501
title:
Comparative functional and structural studies of proteins from the marine psychrophilic bacterium Vibrio salmonicida : aspects of host adaptation and cold activity of proteins
creators:
1 results
1. Ræder, Inger Lin Uttakleiv
year:
2007
publisher:
Department of Chemistry, Faculty of Science, University of Tromsø
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_2020102207501_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a3b493a22f0226d37ef6cd97a74acece
id:
f09836d6ffd783414cea569cd633436f
urn:
URN:NBN:no-nb_digibok_2026082448077
title:
New insights into penicillin non-susceptibility in Streptococcus pneumoniae : ny forståelse av mekanismene bak penicillinresistens hos Streptococcus pneumoniae
creators:
1 results
1. Gjennestad, Ragnhild Sædal
year:
2026
publisher:
NMBU
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_2026082448077_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f09836d6ffd783414cea569cd633436f
id:
d10b24f34a1a960f58179c02f3914f6f
urn:
URN:NBN:no-nb_digibok_2026021706032
title:
Non-beta-lactamase-mediated beta-lactam resistance in Haemophilus influenzae : mechanisms, epidemiology and susceptibility testing
creators:
2 results
1. Skaare, Dagfinn
2. UiT Norges arktiske universitet Det helsevitenskapelige fakultet
year:
2016
publisher:
UiT, The Arctic University of Norway, Faculty of Health Sciences, Department of Medical 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_digibok_2026021706032_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d10b24f34a1a960f58179c02f3914f6f
id:
db34b6694905d814426addd315573437
urn:
URN:NBN:no-nb_digibok_2009122200005
title:
Risk assessment of genetically modified microorganisms : report from Nordic Workshop National Veterinary and Food Administration, Denmark, November 23-24, 2000
creators:
1 results
1. Nordic Workshop National Veterinary and Food Administration
year:
2001
publisher:
Nordic Council of Ministers
media_types:
1 results
1. bøker
languages:
1 results
1. eng
county:
not reported by source
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2009122200005_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/db34b6694905d814426addd315573437
id:
5bc0916ca9fa54c2132dc3e276bb0793
urn:
URN:NBN:no-nb_digibok_2009041704006
title:
Epigenetic studies in Arabidopsis thaliana : transgene silencing and methylation patterns in foreign DNA sequences
creators:
1 results
1. Meza, Trine Johansen
year:
2000
publisher:
Unipub
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_2009041704006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5bc0916ca9fa54c2132dc3e276bb0793
id:
898c81e3e2aa7aaba12a43e5d57773f5
urn:
URN:NBN:no-nb_digibok_2008120100084
title:
Bovine staphylococcal mastitis : development of diagnostic methods and molecular genetic studies of penicillin resistance
creators:
1 results
1. Yazdankhah, Siamak Pour
year:
2001
publisher:
Norwegian School of Veterinary Science, Department of Pharmacology, Microbiology and Food Hygiene
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_2008120100084_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/898c81e3e2aa7aaba12a43e5d57773f5

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.