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 2026-09-27T07:47:30Z in 0.253 seconds.

total:

page:

size:

items:

9 results

id:
88f75982e902cdd9c3616e2a0c473c23
urn:
URN:NBN:no-nb_digibok_2021012248565
title:
Cardiac resynchronization therapy (CRT) : patient selection and guideline adherence : an analysis of CRT practice in Europe based on the European Society of Cardiology CRT survey ǁ with 11088 patients in 42 countries
creators:
2 results
1. Normand, Camilla Jacqueline Hansine
2. Universitetet i Bergen Klinisk institutt 2
year:
2020
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:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2021012248565_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/88f75982e902cdd9c3616e2a0c473c23
id:
4d3e3a85c91d9b18cf76d3cb8beaf377
urn:
URN:NBN:no-nb_digavis_aftenposten_null_null_20030704_144_251_2
title:
Aftenposten
creators:
not reported by source
year:
20030704
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:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_aftenposten_null_null_20030704_144_251_2-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4d3e3a85c91d9b18cf76d3cb8beaf377
id:
a657887a510025c5f82cb51cdf41751b
urn:
URN:NBN:no-nb_digitidsskrift_2018031481397_001
title:
Film & kino (trykt utg.). 1998 Nr. 3A
creators:
2 results
1. Kommunale kinematografers landsforbund
2. FILM&KINO
year:
1998
publisher:
Film & kino
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2018031481397_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a657887a510025c5f82cb51cdf41751b
id:
8d63ca7d551b3351ca92802839ae4de5
urn:
URN:NBN:no-nb_digitidsskrift_2023053080044_003
title:
Polar research (trykt utg.) : the journal of the Norwegian Polar Institute. 1995 Vol. 14 Nr. 3
creators:
1 results
1. Norsk polarinstitutt
year:
1995
publisher:
Blackwell publishing
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_2023053080044_003_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8d63ca7d551b3351ca92802839ae4de5
id:
ca55bb815b1f00b371eb68290c270a0b
urn:
URN:NBN:no-nb_digibok_2017042748046
title:
Papers from the XVth Scandinavian Conference of Linguistics : Oslo, January 13-15, 1995
creators:
1 results
1. Scandinavian Conference of Linguistics
year:
1995
publisher:
Department of Linguistics, 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_2017042748046_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ca55bb815b1f00b371eb68290c270a0b
id:
7e23b2f280b0857019a4fea2c9d25754
urn:
URN:NBN:no-nb_digitidsskrift_2020072881593_001
title:
Norsk litterær årbok. 2010
creators:
not reported by source
year:
2010
publisher:
Samlaget
media_types:
1 results
1. tidsskrift
languages:
3 results
1. nob
2. mul
3. nno
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_2020072881593_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7e23b2f280b0857019a4fea2c9d25754
id:
4ea5d6af19a3366718cb50bb42059657
urn:
URN:NBN:no-nb_digibok_2023102348091
title:
A Master of science history : essays in honor of Charles Coulston Gillispie
creators:
2 results
1. Buchwald, Jed Z.
2. Gillispie, Charles Coulston
year:
2012
publisher:
Springer
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_2023102348091_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4ea5d6af19a3366718cb50bb42059657
id:
fc01312ae80d4dafa7e9036036d8a646
urn:
URN:NBN:no-nb_digibok_2014062606108
title:
Cappelens musikkleksikon. 6 : Schweitzer - Åvik
creators:
4 results
1. Michelsen, Kari
2. Huldt-Nystrøm, Hampus
3. Levin, Robert
4. Rugstad, Gunnar
year:
1980
publisher:
Cappelen
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_2014062606108_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fc01312ae80d4dafa7e9036036d8a646
id:
cb8652d2d065b0e0db1fdbb0af54b430
urn:
URN:NBN:no-nb_digibok_2014061838036
title:
Cappelens musikkleksikon. 4 : Jommelli - Music hall
creators:
4 results
1. Michelsen, Kari
2. Huldt-Nystrøm, Hampus
3. Levin, Robert
4. Rugstad, Gunnar
year:
1979
publisher:
Cappelen
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_2014061838036_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/cb8652d2d065b0e0db1fdbb0af54b430

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.