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 2026-09-28T04:30:10Z in 0.281 seconds.

total:

79345

page:

size:

items:

10 results

id:
8a2f9448f403489499064a7e3e981250
urn:
URN:NBN:no-nb_digibok_2009011200095
title:
Reports from Marine Insurance Symposium : Oslo, 4-6 June 1998
creators:
1 results
1. Marine Insurance Symposium
year:
1998
publisher:
Sjørettsfondet
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_2009011200095_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8a2f9448f403489499064a7e3e981250
id:
ecbc0cacd95e664ddfdde454fd339aef
urn:
URN:NBN:no-nb_digitidsskrift_2025042880061_001
title:
Annual report. 2003
creators:
1 results
1. Bluewater Insurance
year:
2003
publisher:
Bluewater Insurance
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2025042880061_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ecbc0cacd95e664ddfdde454fd339aef
id:
ef64b2a8cb632dea7e44785208deaed4
urn:
URN:NBN:no-nb_digitidsskrift_2025042880061_002
title:
Annual report. 2004
creators:
1 results
1. Bluewater Insurance
year:
2004
publisher:
Bluewater Insurance
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2025042880061_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ef64b2a8cb632dea7e44785208deaed4
id:
4c5198e0f3f27ad2f0b3cfbd37024b20
urn:
URN:NBN:no-nb_digitidsskrift_2025042880061_004
title:
Annual report. 2006
creators:
1 results
1. Bluewater Insurance
year:
2006
publisher:
Bluewater Insurance
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2025042880061_004_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4c5198e0f3f27ad2f0b3cfbd37024b20
id:
ad670df63f619436dc6d48095505ab27
urn:
URN:NBN:no-nb_digitidsskrift_2025042880061_005
title:
Annual report. 2007
creators:
1 results
1. Bluewater Insurance
year:
2007
publisher:
Bluewater Insurance
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2025042880061_005_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ad670df63f619436dc6d48095505ab27
id:
357ef440f75cd8a2ef1ac73bd53673db
urn:
URN:NBN:no-nb_digibok_2017110948617
title:
Random benefits and stochastic interest rates in life insurance
creators:
2 results
1. Persson, Svein-Arne
2. Insurance and financial economics (prosjekt)
year:
1997
publisher:
Foundation for Research in Economics and Business Administration
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_2017110948617_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/357ef440f75cd8a2ef1ac73bd53673db
id:
b50b75f40cc9889cb0800d7f6da55abe
urn:
URN:NBN:no-nb_digibok_2013010906066
title:
Health insurance : treatment vs. compensation
creators:
3 results
1. Asheim, Geir B.
2. Nilssen, Tore
3. Emblem, Anne Wenche
year:
2001
publisher:
Health Economics Research Programme at the University of Oslo
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_2013010906066_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b50b75f40cc9889cb0800d7f6da55abe
id:
33737160c81beb7d79260c2bcadc1ddc
urn:
URN:NBN:no-nb_digibok_2017072109507
title:
On mutual insurance
creators:
2 results
1. Ėrmol'ev, Jurij Michajlovič
2. Flåm, Sjur D.
year:
1999
publisher:
Department of Economics, University of Bergen
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_2017072109507_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/33737160c81beb7d79260c2bcadc1ddc
id:
19860c299cd718083d50d05ec99e7256
urn:
URN:NBN:no-nb_digibok_2009062501023
title:
Catastrophe insurance futures contracts
creators:
1 results
1. Aase, Knut K.
year:
1995
publisher:
Norwegian School of Economics and Business Administration, Institute of Finance and Management Science
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_2009062501023_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/19860c299cd718083d50d05ec99e7256
id:
c56aa00976e67e0f04a3978a9e8869f0
urn:
URN:NBN:no-nb_digibok_2014051908203
title:
Incentives in social insurance
creators:
1 results
1. Bratberg, Espen
year:
1996
publisher:
Department of Economics, University of Bergen
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_2014051908203_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c56aa00976e67e0f04a3978a9e8869f0

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.