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 2026-09-27T21:49:49Z in 0.226 seconds.

total:

39732

page:

size:

items:

10 results

id:
298afda29192dd4a41b68108dc24d307
urn:
URN:NBN:no-nb_digibok_2021082648596
title:
Lov, liv og lære : Inge Lorange Backer 70 år
creators:
1 results
1. Bugge, Hans Chr
year:
2016
publisher:
Universitetsforl.
media_types:
1 results
1. bøker
languages:
5 results
1. nob
2. mul
3. nno
4. dan
5. swe
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_2021082648596_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/298afda29192dd4a41b68108dc24d307
id:
81a7c1c5ffc289973cca6356b6ee0fb9
urn:
URN:NBN:no-nb_digibok_2009063001070
title:
Bolig for folk flest : Selvaagbygg 1920-1998
creators:
1 results
1. Skeie, Jon
year:
1998
publisher:
Tano Aschehoug
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_2009063001070_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/81a7c1c5ffc289973cca6356b6ee0fb9
id:
5a09fbd126d58169a5609b22e93e2eab
urn:
URN:NBN:no-nb_digibok_2014070708067
title:
Eiendomsret og statsmonopol : om statens ret til uden erstatning at indskrænke eiendomsraadigheden, særlig i det øiemed at gjøre en virksomhed til statsmonopol
creators:
1 results
1. Skeie, Jon
year:
1923
publisher:
Norli
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_2014070708067_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5a09fbd126d58169a5609b22e93e2eab
id:
245a090e6b68e47e0382181a567fa077
urn:
URN:NBN:no-nb_digibok_2013040807129
title:
Rettslig interesse for søksmål, skjønn og klage -særlig ved naturinngrep
creators:
1 results
1. Backer, Inge Lorange
year:
1984
publisher:
Universitetsforlaget
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_2013040807129_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/245a090e6b68e47e0382181a567fa077
id:
8f906b0fe3edebc02b068dba393ffd4c
urn:
URN:NBN:no-nb_digibok_2012092606128
title:
Refusjon for underhold av barn
creators:
1 results
1. Backer, Inge Lorange
year:
1982
publisher:
Universitetsforlaget
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_2012092606128_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8f906b0fe3edebc02b068dba393ffd4c
id:
45b4272336f6a6936e68b749ba721073
urn:
URN:NBN:no-nb_pliktmonografi_000007149
title:
Loven - hvordan blir den til?
creators:
1 results
1. Backer, Inge Lorange
year:
2022
publisher:
Universitetsforlaget
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_000007149_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/45b4272336f6a6936e68b749ba721073
id:
f7d9eecca9015e4bfc5cbe1bd89b5a7f
urn:
URN:NBN:no-nb_digibok_2018031248092
title:
Lov og lovgivning : artikler og foredrag
creators:
1 results
1. Backer, Inge Lorange
year:
2013
publisher:
Universitetsforl.
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_2018031248092_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f7d9eecca9015e4bfc5cbe1bd89b5a7f
id:
0615c9498d7de79a2b5916ce332902af
urn:
URN:NBN:no-nb_pliktmonografi_000035157
title:
Norsk sivilprosess
creators:
1 results
1. Backer, Inge Lorange
year:
2024
publisher:
Universitetsforlaget
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_000035157_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0615c9498d7de79a2b5916ce332902af
id:
697733a314633cc66a3697512b52d698
urn:
URN:NBN:no-nb_digibok_2021072148557
title:
Loven - hvordan blir den til?
creators:
1 results
1. Backer, Inge Lorange
year:
2013
publisher:
Universitetsforl.
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_2021072148557_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/697733a314633cc66a3697512b52d698
id:
d3a9267b93247b33b0587771d3bb1873
urn:
URN:NBN:no-nb_digibok_2007071200009
title:
Barneloven : lov 8. april 1981 nr.7 om barn og foreldre
creators:
1 results
1. Backer, Inge Lorange
year:
1982
publisher:
Universitetsforl.
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_2007071200009_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d3a9267b93247b33b0587771d3bb1873

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.