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 2026-09-27T22:56:25Z in 0.255 seconds.

total:

4557

page:

size:

items:

10 results

id:
39dd3cd3f7146b8787d6cc37393b7160
urn:
URN:NBN:no-nb_digibok_2014062506148
title:
Making sense of taste : psychophysical, molecular biological and neurophysiological studies of umami taste processing in humans
creators:
1 results
1. Singh, Preet Bano
year:
2011
publisher:
Faculty of Dentistry, 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_2014062506148_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/39dd3cd3f7146b8787d6cc37393b7160
id:
ce488f3afceb3010b540e60a42b4088d
urn:
URN:NBN:no-nb_digibok_2018091107096
title:
Bygg deg selv et liv = : Build yourself a life = Construye tu vida
creators:
2 results
1. Olsen, Sten
2. Aslaksen, Bjørn
year:
2014
publisher:
Kolofon
media_types:
1 results
1. bøker
languages:
4 results
1. eng
2. nob
3. mul
4. 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_digibok_2018091107096_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ce488f3afceb3010b540e60a42b4088d
id:
534f3102cabf7a396a6f1a5f935836eb
urn:
URN:NBN:no-nb_digibok_2019081407083
title:
Bygg deg selv et liv = : Build yourself a life = Construye tu vida
creators:
2 results
1. Olsen, Sten
2. Aslaksen, Bjørn
year:
2014
publisher:
Kolofon
media_types:
1 results
1. bøker
languages:
4 results
1. eng
2. nob
3. mul
4. 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_digibok_2019081407083_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/534f3102cabf7a396a6f1a5f935836eb
id:
37c3c6ca02351172280beafea27f44dd
urn:
URN:NBN:no-nb_digibok_2018101107060
title:
Bygg deg selv et liv = : Build yourself a life = Construye tu vida
creators:
2 results
1. Olsen, Sten
2. Aslaksen, Bjørn
year:
2014
publisher:
Kolofon
media_types:
1 results
1. bøker
languages:
4 results
1. eng
2. nob
3. mul
4. 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_digibok_2018101107060_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/37c3c6ca02351172280beafea27f44dd
id:
842d2764cf7362a5b21d8bb191979dca
urn:
URN:NBN:no-nb_digibok_2025120407139
title:
Microbiota of Atlantic salmon (Salmo salar L.) during their early and adult life
creators:
1 results
1. Jeppinamogeru, Lokesh
year:
2016
publisher:
Nord University, Faculty of Biosciences and Aquaculture
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_2025120407139_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/842d2764cf7362a5b21d8bb191979dca
id:
91d54863011736153a9df799e5768859
urn:
URN:NBN:no-nb_pliktmonografi_000014162
title:
Oral health status among 65-year-olds in Oslo, Norway : periodontitis, chemosensory disorders, and oral health-related quality of life
creators:
1 results
1. Sødal, Anne Thea Tveit
year:
2023
publisher:
Department of Cariology and Gerodontology, Faculty of Dentistry, 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_000014162_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/91d54863011736153a9df799e5768859
id:
da10ef7733cc476cfa294715f6eb57dd
urn:
URN:NBN:no-nb_digibok_2021020907859
title:
Liv eller død
creators:
2 results
1. Robotham, Michael
2. Hanssen, Kurt
year:
2017
publisher:
Bazar
media_types:
1 results
1. bøker
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_digibok_2021020907859_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/da10ef7733cc476cfa294715f6eb57dd
id:
c67dd38caaba7e5bc90d409340c5c07a
urn:
URN:NBN:no-nb_digibok_2020082807520
title:
Liv eller død
creators:
2 results
1. Robotham, Michael
2. Hanssen, Kurt
year:
2016
publisher:
Korall
media_types:
1 results
1. bøker
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_digibok_2020082807520_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c67dd38caaba7e5bc90d409340c5c07a
id:
3008989d95be756a13332a63ebc5c7cc
urn:
URN:NBN:no-nb_digibok_2021022407552
title:
Mine verste år
creators:
4 results
1. Patterson, James
2. Park, Laura
3. Tebbetts, Christopher
4. Røed, Tonje
year:
2017
publisher:
Aschehoug
media_types:
1 results
1. bøker
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_digibok_2021022407552_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3008989d95be756a13332a63ebc5c7cc
id:
ddcd5297d34c8f280ac104385c1fe780
urn:
URN:NBN:no-nb_digibok_2025081506046
title:
In search of diagnostic markers of dry mouth and dry eye disease
creators:
3 results
1. Tashbayev, Behzod
2. Universitetet i Oslo Det odontologiske fakultet
3. Universitetet i Oslo Institutt for klinisk odontologi
year:
2020
publisher:
Institute of Clinical Dentistry, Faculty of Dentistry, 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_2025081506046_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ddcd5297d34c8f280ac104385c1fe780

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.