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 2026-09-24T19:05:32Z in 0.241 seconds.

total:

153166

page:

size:

items:

10 results

id:
9240c5161e6122dd56411f585dee2e7e
urn:
URN:NBN:no-nb_digifoto_20161123_00026_NB_MIT_GNR_12694_B
title:
Olaf Kaasa. Holmenkollrennet 1930
creators:
1 results
1. Mittet & Co. AS
year:
not reported by source
publisher:
not reported by source
media_types:
1 results
1. bilder
languages:
No results.
county:
Oslo
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_digifoto_20161123_00026_NB_MIT_GNR_12694_B/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/9240c5161e6122dd56411f585dee2e7e
id:
70f720704f2477c974277b4a188ba228
urn:
URN:NBN:no-nb_digibok_2024021248030
title:
Seljord – Telemark : Øystein O. Solberg f. Kaasa – og hans fotokunst
creators:
2 results
1. Rui, Odd Vidar
2. Solberg, Øystein O. (Øystein Olsen)
year:
2023
publisher:
Kulturarv Seljord v/Odd Vidar Rui
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Telemark
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_2024021248030_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/70f720704f2477c974277b4a188ba228
id:
263958b04e57c654620a10e76b37c9f4
urn:
URN:NBN:no-nb_digibok_2016011508017
title:
Vasking eller tørking av fiskeoppdrettsnøter : alternativ til kobberholdig impregnering = Washing or drying of nets in fish farming as an alternative to the use of copper-paint
creators:
1 results
1. Kaasa, Tone
year:
1991
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_2016011508017_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/263958b04e57c654620a10e76b37c9f4
id:
0a2e61990afda352b89c88c33f7259bf
urn:
URN:NBN:no-nb_digifoto_20150716_00425_NB_MIT_FNR_09582_B
title:
Neri Valen Bø Sendings-kurv av Svein Kaasa
creators:
1 results
1. Mittet & Co. AS
year:
not reported by source
publisher:
not reported by source
media_types:
1 results
1. bilder
languages:
No results.
county:
Telemark
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_digifoto_20150716_00425_NB_MIT_FNR_09582_B/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0a2e61990afda352b89c88c33f7259bf
id:
9eed13a9bb3302c344d686b2458f2f43
urn:
URN:NBN:no-nb_digifoto_20150716_00439_NB_MIT_FNR_09582_C
title:
Neri Valen Bø Sendings-kurv av Svein Kaasa
creators:
1 results
1. Mittet & Co. AS
year:
not reported by source
publisher:
not reported by source
media_types:
1 results
1. bilder
languages:
No results.
county:
Telemark
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_digifoto_20150716_00439_NB_MIT_FNR_09582_C/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/9eed13a9bb3302c344d686b2458f2f43
id:
7d3778b73f1480d02c7f40e8d262d874
urn:
URN:NBN:no-nb_digifoto_20150716_00424_NB_MIT_FNR_09582_A
title:
Neri Valen Bø Sendings-kurv av Svein Kaasa
creators:
1 results
1. Mittet & Co. AS
year:
not reported by source
publisher:
not reported by source
media_types:
1 results
1. bilder
languages:
No results.
county:
Telemark
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_digifoto_20150716_00424_NB_MIT_FNR_09582_A/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7d3778b73f1480d02c7f40e8d262d874
id:
44abc24c134734b46e84d70e2b9866b3
urn:
not reported by source
title:
Oslo AS : anmeldelse av Atle Sperre Hermansens Vikariatet
creators:
1 results
1. Kaasa, Janicke Stensvaag
year:
2008
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/44abc24c134734b46e84d70e2b9866b3
id:
ae1e3ac523de13f984821208986d7197
urn:
URN:NBN:no-nb_pliktmonografi_000043070
title:
( 44) : noveller
creators:
1 results
1. Kaasa, Erlend
year:
2025
publisher:
Samlaget
media_types:
1 results
1. bøker
languages:
1 results
1. 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_pliktmonografi_000043070_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ae1e3ac523de13f984821208986d7197
id:
3866b28fcb5778b5d70265a8309dde02
urn:
URN:NBN:no-nb_pliktmonografi_000069969
title:
Ulvegeriljaen
creators:
1 results
1. Kaasa, Karen
year:
2024
publisher:
Forfatterentreprenøren
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_000069969_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3866b28fcb5778b5d70265a8309dde02
id:
a6d8563e5d4349d53b6b2b3d882c0bd7
urn:
URN:NBN:no-nb_digibok_2015032508199
title:
Prosjekt i miljøorientert familiearbeid : kartlegging av enslige mødres livssituasjon i 10 gjennomgangsleiligheter og igangsetting av eventuelle hjelpetiltak
creators:
1 results
1. Kaasa, Asbjørn
year:
1978
publisher:
not reported by source
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_2015032508199_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a6d8563e5d4349d53b6b2b3d882c0bd7

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.