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 2026-09-26T23:22:22Z in 0.300 seconds.

total:

6620

page:

size:

items:

10 results

id:
077d0aa891b09e2f4e2dcdf9c44a39b2
urn:
URN:NBN:no-nb_digibok_2009090100100
title:
Health effects of selected chemicals. 2
creators:
not reported by source
year:
1993
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:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2009090100100_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/077d0aa891b09e2f4e2dcdf9c44a39b2
id:
d6c2684addfad287d249c7a129bc5df6
urn:
URN:NBN:no-nb_digibok_2026061006043
title:
AMAP assessment 2016: Chemicals of emerging Arctic concern
creators:
1 results
1. Wilson, Simon J.
year:
2017
publisher:
AMAP
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_2026061006043_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d6c2684addfad287d249c7a129bc5df6
id:
4ddab1734d108ed3dd54de0b3a00784e
urn:
URN:NBN:no-nb_pliktmonografi_000008036
title:
Built environment and architecture as a resource
creators:
5 results
1. Built Environment and Architecture as a Resource (symposium) Seinäjoki 2018
2. Chudoba, Minna
3. Hynynen, Ari
4. Rönn, Magnus
5. Toft, Anne Elisabeth
year:
2020
publisher:
Nordic Academic Press of Architectural Research
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_000008036_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4ddab1734d108ed3dd54de0b3a00784e
id:
4bb11767a37136948d9715a35f3429d6
urn:
URN:NBN:no-nb_digibok_2016071908012
title:
DNA specific dyes as probes of chromatin structure
creators:
1 results
1. Stokke, Trond
year:
1989
publisher:
Department of Physics, The Norwegian Radium Hospital and The Norwegian Cancer Society
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_2016071908012_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4bb11767a37136948d9715a35f3429d6
id:
6af21e55e5e6988ca99d8fa52d661c9a
urn:
URN:NBN:no-nb_digibok_2025072406069
title:
Protection of neurons : glutathione as a key mediator for survival with potential implication for use of estrogens as neuroprotectors
creators:
1 results
1. Sørvik, Irene Beate
year:
2017
publisher:
University of Oslo, Faculty of Mathematics and Natural Sciences, Department of Pharmaceutical Biosciences, School of Pharmacy
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_2025072406069_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6af21e55e5e6988ca99d8fa52d661c9a
id:
06987e7cad3533d4948e7af5fe0fe88c
urn:
URN:NBN:no-nb_pliktmonografi_000039663
title:
Enterprise BIM as holistic support for asset management
creators:
1 results
1. Godager, Bjørn Arild
year:
2024
publisher:
Norwegian University of Science and Technology, Faculty of Engineering, Department of Manufacturing and Civil Engineering
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_000039663_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/06987e7cad3533d4948e7af5fe0fe88c
id:
ed105fbfda3a13b271f919d6f6c46e68
urn:
URN:NBN:no-nb_digibok_2026090806043
title:
Experimental renovascular hypertension : tetradecythioacetic acid as a potential new treatment
creators:
1 results
1. Bivol, Liliana Monica
year:
2008
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_2026090806043_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ed105fbfda3a13b271f919d6f6c46e68
id:
42b28af09186b7e12915fe030b099db8
urn:
URN:NBN:no-nb_digibok_2017022448142
title:
"Truth" as conceived by those who are not professional philosophers
creators:
1 results
1. Næss, Arne
year:
1938
publisher:
not reported by source
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_2017022448142_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/42b28af09186b7e12915fe030b099db8
id:
505a60bbe2f7742dc837686bca68dad7
urn:
URN:NBN:no-nb_digibok_2017040648016
title:
Thermal hydrolysis of sludge and the use of hydrolysate as carbon source for denitrification
creators:
1 results
1. Barlindhaug, John
year:
1995
publisher:
Department of Hydraulic and Environmental Engineering, University of Trondheim, Norwegian Institute of Technology
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_2017040648016_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/505a60bbe2f7742dc837686bca68dad7
id:
57ee70148c4a4a060b147760bb574772
urn:
URN:NBN:no-nb_pliktmonografi_000009334
title:
Synthesis and method development of silver N-heterocyclic complexes as cytotoxic agents
creators:
1 results
1. Lundevall, Frida Johanne Rakneberg
year:
2022
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_pliktmonografi_000009334_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/57ee70148c4a4a060b147760bb574772

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.