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 2026-08-02T16:01:24Z in 0.221 seconds.

total:

3931

page:

size:

items:

10 results

id:
2e9f9bc93897dc7511eca7d15239a5a4
urn:
not reported by source
title:
Fish health management in Asia-Pacific : report on a Regional Study and Workshop on Fish Disease and Fish Health Management
creators:
3 results
1. Asian Development Bank
2. Network of Aquaculture Centres in Asia-Pacific
3. Regional Workshop on Fish Health Management
year:
1991
publisher:
NACA
media_types:
1 results
1. bøker
languages:
1 results
1. eng
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/2e9f9bc93897dc7511eca7d15239a5a4
id:
622fae484d310443135fbcf768fde728
urn:
not reported by source
title:
Fish stress and health in aquaculture
creators:
4 results
1. Iwama, George
2. Sumpter, J. P.
3. Pickering, A. D.
4. Schreck, Carl B.
year:
1997
publisher:
Cambridge University Press
media_types:
1 results
1. bøker
languages:
1 results
1. eng
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/622fae484d310443135fbcf768fde728
id:
023c262abd043241496c199c47dd907d
urn:
URN:NBN:no-nb_digibok_2017110948043
title:
Holmenkollen guidelines for sustainable aquaculture 1998
creators:
1 results
1. International Symposium on Sustainable Aquaculture
year:
1998
publisher:
Norwegian Academy of Technological Sciences
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_2017110948043_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/023c262abd043241496c199c47dd907d
id:
e7c46f45d843ae9f27fd6eefda50aab3
urn:
URN:NBN:no-nb_pliktmonografi_000029269
title:
Triploid Atlantic salmon in aquaculture - Consequences for fish health and welfare under farming conditions
creators:
4 results
1. Rimstad, Espen
2. Ytrehus, Bjørnar
3. Vitenskapskomiteen for mat og miljø
4. Basic, Dean
year:
2023
publisher:
Vitenskapskomiteen for mat og miljø
media_types:
1 results
1. bøker
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_pliktmonografi_000029269_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e7c46f45d843ae9f27fd6eefda50aab3
id:
918213c94d1c59647b50ed94b99eb56f
urn:
URN:NBN:no-nb_pliktmonografi_000046156
title:
Monitoring of fish in sea-caged aquaculture : methodology and applications
creators:
3 results
1. Banno, Kana
2. Norges teknisk-naturvitenskapelige universitet Institutt for biologiske fag Ålesund
3. Norges teknisk-naturvitenskapelige universitet
year:
2025
publisher:
University of Science and Technology, Faculty of Natural Sciences, Department of Biological Sciences Ålesund
media_types:
1 results
1. bøker
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_pliktmonografi_000046156_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/918213c94d1c59647b50ed94b99eb56f
id:
77bd6332c00404eb407b09afbe88cd53
urn:
URN:NBN:no-nb_digibok_2026032006002
title:
Physiology and welfare of Atlantic salmon and cleaner fish in exposed aquaculture
creators:
1 results
1. Hvas, Malthe
year:
2019
publisher:
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:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2026032006002_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/77bd6332c00404eb407b09afbe88cd53
id:
a3b08a800fb694fea44cb73876c5c493
urn:
URN:NBN:no-nb_digibok_2017110948749
title:
Vertical migration of fish : impacts on aquaculture and abundance estimation
creators:
1 results
1. Huse, Ingvar
year:
1998
publisher:
Department of Fisheries and Marine Biology, 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_2017110948749_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a3b08a800fb694fea44cb73876c5c493
id:
4b8e2bab642aa9fe899409e6d580259d
urn:
URN:NBN:no-nb_digibok_2016042708228
title:
Productivity in organic and conventional salmon aquaculture
creators:
2 results
1. Reithe, Siv
2. Organic salmon production: Ethics, sustainability and regulation (prosjekt)
year:
2000
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_2016042708228_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4b8e2bab642aa9fe899409e6d580259d
id:
93ef44f9dfbb6e7f6e182f8a9511c93e
urn:
URN:NBN:no-nb_digitidsskrift_2024121080004_001
title:
Aquaculture in Norway. 2003
creators:
2 results
1. Norske fiskeoppdretteres forening
2. FHL havbruk
year:
2003
publisher:
FHL Aquaculture
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_2024121080004_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/93ef44f9dfbb6e7f6e182f8a9511c93e
id:
0a6936999a2c1f907b780bc02a1b1a7b
urn:
URN:NBN:no-nb_digitidsskrift_2024121080004_002
title:
Aquaculture in Norway. 2005
creators:
2 results
1. Norske fiskeoppdretteres forening
2. FHL havbruk
year:
2005
publisher:
FHL Aquaculture
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_2024121080004_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0a6936999a2c1f907b780bc02a1b1a7b

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.