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 2026-09-26T19:55:19Z in 0.217 seconds.

total:

43263

page:

size:

items:

10 results

id:
fcdee38dbef4a0ad259d65c7c31f341f
urn:
not reported by source
title:
Dermatofilose hos hest - et økende problem?
creators:
2 results
1. Frostad, Lill
2. Ihler, Carl Fredrik
year:
2001
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/fcdee38dbef4a0ad259d65c7c31f341f
id:
a4c41d8fb6ca70e50b3c4f10ee25f4c7
urn:
URN:NBN:no-nb_digibok_2008061904002
title:
Maskindirektivet - aktuelle spørsmål og svar
creators:
1 results
1. Frostad, Hans
year:
1996
publisher:
Teknologibedriftenes landsforening
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_2008061904002_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a4c41d8fb6ca70e50b3c4f10ee25f4c7
id:
c5582ac98625fb6960802e8f2d7f2dea
urn:
URN:NBN:no-nb_digibok_2018042648509
title:
Matematikkinnsikt hos hørselshemmede : utprøving av et diagnostisk materiale for grunnleggende matematikkinnsikt hos hørselshemmede grunnskoleelever
creators:
1 results
1. Frostad, Per
year:
1988
publisher:
Statens spesiallærerhøgskole
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_2018042648509_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c5582ac98625fb6960802e8f2d7f2dea
id:
bc2ca83343d8b257af5c54649bd151a8
urn:
URN:NBN:no-nb_digibok_2012012008112
title:
Om mandelsyrebehandling av cystopyelitt i praksis
creators:
1 results
1. Frostad, Simon
year:
1939
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_2012012008112_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/bc2ca83343d8b257af5c54649bd151a8
id:
ff17371e0b57ae1ed74ff614038a277c
urn:
URN:NBN:no-nb_digibok_2011100608064
title:
Fredrikstadmarka : på sporet av historien
creators:
2 results
1. Skahjem, Svein
2. Frostad, Bjørn
year:
2006
publisher:
MITT forl.
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_2011100608064_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ff17371e0b57ae1ed74ff614038a277c
id:
1125086c52bf1efe670d9ab79a69f7ec
urn:
URN:NBN:no-nb_digibok_2016011207570
title:
Whitbread Round the World Race : responsible for the irresponsible
creators:
2 results
1. Frostad, Knut
2. Seilas (tidsskrift)
year:
1998
publisher:
Grøndahl Dreyer
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_2016011207570_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/1125086c52bf1efe670d9ab79a69f7ec
id:
453529a58171d15f3820451ea7201152
urn:
URN:NBN:no-nb_digibok_2015061708153
title:
Allergikokeboken
creators:
2 results
1. Bjønnes, Else Lill
2. Aas, Kjell
year:
2004
publisher:
Kolibri forl.
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_2015061708153_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/453529a58171d15f3820451ea7201152
id:
e8be987822d667013a6488d72f281a80
urn:
URN:NBN:no-nb_digibok_2010052106049
title:
Jern og metall 100 år : 1891-1940
creators:
2 results
1. Olstad, Finn
2. Jensen, Lill-Ann
year:
1990
publisher:
Tiden
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_2010052106049_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e8be987822d667013a6488d72f281a80
id:
5d0cfec17b719aeebf950c41cda45c49
urn:
URN:NBN:no-nb_digibok_2009032304076
title:
Allergikokeboken
creators:
1 results
1. Tronstad, Knut
year:
1999
publisher:
Kolibri forl.
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_2009032304076_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5d0cfec17b719aeebf950c41cda45c49
id:
a26fefcaa3d235896c1e3e7923c9d080
urn:
URN:NBN:no-nb_digibok_2011121506006
title:
Allergikokeboken
creators:
1 results
1. Tronstad, Knut
year:
1994
publisher:
Kolibri
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_2011121506006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a26fefcaa3d235896c1e3e7923c9d080

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.