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 2026-08-03T07:54:43Z in 0.266 seconds.

total:

43124

page:

size:

items:

10 results

id:
31ebaf5d963be41510aa04a36507d0a8
urn:
URN:NBN:no-nb_digibok_2020031248006
title:
Professor Tronstads krig : 9. april 1940-11. mars 1945
creators:
1 results
1. Njølstad, Olav
year:
2014
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_2020031248006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/31ebaf5d963be41510aa04a36507d0a8
id:
b90c2b745a19fdf88dd4639c3571b991
urn:
URN:NBN:no-nb_digibok_2020092307554
title:
Professor Tronstads krig : 9. april 1940-11. mars 1945
creators:
1 results
1. Njølstad, Olav
year:
2014
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_2020092307554_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b90c2b745a19fdf88dd4639c3571b991
id:
24f641decebc7d6d23f20121458a1063
urn:
URN:NBN:no-nb_digibok_2020011007003
title:
Hvis det er flere som juger nå
creators:
1 results
1. Tronstad, Tyra Teodora
year:
2011
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_2020011007003_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/24f641decebc7d6d23f20121458a1063
id:
4a6da45035fa0edf4e0d39c99f2f95ed
urn:
URN:NBN:no-nb_digibok_2009102600054
title:
Erfaringer med rankekompostering = : Experiences on windrow composting
creators:
2 results
1. Østdahl, Torbjørn
2. Tronstad, Arne
year:
1995
publisher:
Statens forurensningstilsyn
media_types:
1 results
1. bøker
languages:
1 results
1. nob
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_2009102600054_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4a6da45035fa0edf4e0d39c99f2f95ed
id:
ad4de4f56fb82b1701b007b6ea34eb57
urn:
URN:NBN:no-nb_digibok_2015090906031
title:
Professor Tronstads krig : 9. april 1940-11. mars 1945
creators:
1 results
1. Njølstad, Olav
year:
2012
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_2015090906031_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ad4de4f56fb82b1701b007b6ea34eb57
id:
a4b542c25e9c712229f83b7f7895f9fb
urn:
URN:NBN:no-nb_pliktmonografi_000004595
title:
Historien om Vinter-OL : fra Torleif Haug til Marit Bjørgen. Bind 2 : 1992-2018
creators:
2 results
1. Lahlum, Hans Olav
2. Tronstad, Øyvind
year:
2022
publisher:
Cappelen Damm
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_pliktmonografi_000004595_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a4b542c25e9c712229f83b7f7895f9fb
id:
111d97e71c86bf236b510cefd9fc3f0c
urn:
URN:NBN:no-nb_pliktmonografi_000001724
title:
Historien om Vinter-OL : fra Thorleif Haug til Marit Bjørgen. Bind 1 : 1924-1988
creators:
2 results
1. Lahlum, Hans Olav
2. Tronstad, Øyvind
year:
2021
publisher:
Cappelen Damm
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_pliktmonografi_000001724_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/111d97e71c86bf236b510cefd9fc3f0c
id:
cc35664f2412d39b352bfd7d67d90e7e
urn:
URN:NBN:no-nb_digibok_2020041748043
title:
Frimodighet med etterspill : Nicolai Wergeland i meningskamp og rettsstrid
creators:
2 results
1. Tronstad, Roger
2. Vest-Agder-museet
year:
2018
publisher:
Vest Agder-museet
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_2020041748043_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/cc35664f2412d39b352bfd7d67d90e7e
id:
3331d0b85904c2ae15aea0f13dbdea7c
urn:
URN:NBN:no-nb_digibok_2009070101005
title:
100 år - 100 mennesker : historier, tanker, opplevelser og hendelser gjennom 100 år : fortalt av folk selv - og lokalavisa
creators:
2 results
1. Solbakken, Klaus
2. Rana blad
year:
2002
publisher:
Rana blad
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_2009070101005_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3331d0b85904c2ae15aea0f13dbdea7c
id:
88e17cc0f982ffd5ef7cd95e1c2d6dce
urn:
URN:NBN:no-nb_digibok_2010052606065
title:
Norsk stedfortegnelse : postadressebog for Norge
creators:
2 results
1. Helsing, Klaus
2. Lundh, Ragnar
year:
1901
publisher:
Aschehoug
media_types:
1 results
1. bøker
languages:
1 results
1. und
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_2010052606065_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/88e17cc0f982ffd5ef7cd95e1c2d6dce

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.