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.

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": "..."}
}

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 2026-08-02T21:40:44Z in 0.285 seconds.

total:

31181

page:

size:

items:

10 results

id:
b0f9a12dcc9178b45e568eef50121bab
urn:
URN:NBN:no-nb_digibok_2018021909508
title:
Employee stock options
creators:
1 results
1. Børsum, Øystein
year:
2010
publisher:
University of Oslo, Department of Economics
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_2018021909508_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b0f9a12dcc9178b45e568eef50121bab
id:
b7e730cd3faee93f83dbb03ea74cf4c1
urn:
URN:NBN:no-nb_digibok_2018021909507
title:
Contagious mortgage default
creators:
1 results
1. Børsum, Øystein
year:
2010
publisher:
University of Oslo, Department of Economics
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_2018021909507_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b7e730cd3faee93f83dbb03ea74cf4c1
id:
3b865980fc71b4120ee63bdefc38b5b8
urn:
not reported by source
title:
Risk taking, sharing and propagation : three applications of contract theory
creators:
1 results
1. Børsum, Øystein
year:
2010
publisher:
Unipub
media_types:
1 results
1. bøker
languages:
1 results
1. eng
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/3b865980fc71b4120ee63bdefc38b5b8
id:
2b0ebc0467b46cb12f35298047d2ac6f
urn:
URN:NBN:no-nb_digibok_2018031448144
title:
Exchange rate risk in the Government Pension Fund Global
creators:
1 results
1. Børsum, Øystein
year:
2011
publisher:
Centre for Monetary Economics, BI Norwegian School of Management
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_2018031448144_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2b0ebc0467b46cb12f35298047d2ac6f
id:
aa12a2e642a6e3544f52352b885522fe
urn:
not reported by source
title:
Svenskeboblen
creators:
2 results
1. Vedde-Fjærestad, Ina
2. Børsum, Øystein
year:
2017
publisher:
not reported by source
media_types:
1 results
1. artikler
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/aa12a2e642a6e3544f52352b885522fe
id:
7ba7cfecd08be794c1fb2f29bf2d6ad1
urn:
not reported by source
title:
Valutasikring i norske selskaper
creators:
2 results
1. Børsum, Øystein G.
2. Ødegaard, Bernt Arne
year:
2005
publisher:
not reported by source
media_types:
1 results
1. artikler
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/7ba7cfecd08be794c1fb2f29bf2d6ad1
id:
727a7607b651bcd2391fe795d908fb9c
urn:
not reported by source
title:
Valutasikring i norske selskaper
creators:
2 results
1. Børsum, Øystein G.
2. Bernt Arne Ødegaard
year:
2005
publisher:
not reported by source
media_types:
1 results
1. artikler
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/727a7607b651bcd2391fe795d908fb9c
id:
c326d73d8a95bcc780d384985acedeed
urn:
URN:NBN:no-nb_digibok_2016030309053
title:
Lokalisering, tilgjengelighet og arbeidsreiser : en analyse av arbeidsreiser i Osloregionens sørkorridor basert på kriteriene i ABC-systemet
creators:
1 results
1. Engebretsen, Øystein
year:
1996
publisher:
Transportøkonomisk institutt
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_2016030309053_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c326d73d8a95bcc780d384985acedeed
id:
5f6ef7a339f5d0e18e390e42d95af1e4
urn:
URN:NBN:no-nb_digibok_2017030248137
title:
Ny frihet og nytt Frogn : 1945-2000
creators:
2 results
1. Øystå, Øystein
2. Frogn
year:
2001
publisher:
Frogn kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Akershus
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_2017030248137_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5f6ef7a339f5d0e18e390e42d95af1e4
id:
84ab136f54237f06ac84fe233139d2e6
urn:
URN:NBN:no-nb_digibok_2008092300090
title:
Norges litteraturhistorie : etterkrigslitteraturen. B. 3 : Vår egen tid : 1980-1998
creators:
1 results
1. Rottem, Øystein
year:
1998
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_2008092300090_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/84ab136f54237f06ac84fe233139d2e6

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

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.