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 2026-09-28T11:20:25Z in 3.820 seconds.

total:

15455

page:

size:

items:

10 results

id:
dea5f3089afc7c70e4c4f916f57cd90c
urn:
URN:NBN:no-nb_digibok_2017090707001
title:
Legal decisions and information systems
creators:
2 results
1. Bing, Jon
2. Harvold, Trygve
year:
1977
publisher:
Universitetsforlaget
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_2017090707001_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/dea5f3089afc7c70e4c4f916f57cd90c
id:
f52e765743b8318d1ca686ea63058a39
urn:
URN:NBN:no-nb_digibok_2017072407088
title:
Vinsj- og taubanesystemer i norsk skogbruk = Winch- and cable systems in Norwegian forestry / Ivar Samset = : Winch- and cable systems in Norwegian forestry
creators:
1 results
1. Samset, Ivar
year:
1981
publisher:
Norsk inst.for skogforskning
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_2017072407088_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f52e765743b8318d1ca686ea63058a39
id:
bf70fc4b8b854775de3e134559dd2a02
urn:
URN:NBN:no-nb_digibok_2026060906040
title:
Structure preserving integration of constrained mechanical systems
creators:
1 results
1. Høiseth, Eirik Hoel
year:
2016
publisher:
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Mathematical Sciences
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_2026060906040_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/bf70fc4b8b854775de3e134559dd2a02
id:
d7afc8086706458ff5a4eb21d3a7a0f2
urn:
URN:NBN:no-nb_digibok_2016061508153
title:
Dimensionsänderungen durch Bildung von Mischkristallen des rhombischen Systems
creators:
1 results
1. Jansen, Einar
year:
1930
publisher:
not reported by source
media_types:
1 results
1. bøker
languages:
1 results
1. ger
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_2016061508153_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d7afc8086706458ff5a4eb21d3a7a0f2
id:
4ab473f9464de3ecc3ad3908d660f3a8
urn:
URN:NBN:no-nb_digibok_2025060206069
title:
Magnetization dynamics in ferromagnetic, antiferromagnetic and superconducting systems
creators:
3 results
1. Simensen, Haakon Thømt
2. Norges teknisk-naturvitenskapelige universitet
3. Norges teknisk-naturvitenskapelige universitet Institutt for fysikk
year:
2021
publisher:
Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Physics
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_2025060206069_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4ab473f9464de3ecc3ad3908d660f3a8
id:
8fad1fe5c718649954b31b61ad9486ac
urn:
URN:NBN:no-nb_digibok_2025063006032
title:
MDE techniques for modeling and analysis of complex software systems
creators:
1 results
1. Rabbi, Fazle
year:
2017
publisher:
University of Oslo, Faculty of Mathematics and Natural Sciences, Department of Informatics
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_2025063006032_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8fad1fe5c718649954b31b61ad9486ac
id:
a705039060be0d5c020f696e56ccd1c2
urn:
URN:NBN:no-nb_digibok_2024020848048
title:
RKKY interaction and coexistence with magnetism in superconducting systems
creators:
3 results
1. Ghanbari Birgani, Atousa
2. Norges teknisk-naturvitenskapelige universitet
3. Norges teknisk-naturvitenskapelige universitet Institutt for fysikk
year:
2022
publisher:
Norwegian University of Science and Technology, Faculty of Natural Sciences, Department of Physics
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_2024020848048_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a705039060be0d5c020f696e56ccd1c2
id:
5783ceaf5106b2b19692076acde8b4b1
urn:
URN:NBN:no-nb_digibok_2017010948059
title:
Effects of sulphite spent liquor components on some biological systems
creators:
1 results
1. Næss, Bjørn
year:
1972
publisher:
Universitetsforlaget
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_2017010948059_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5783ceaf5106b2b19692076acde8b4b1
id:
73c37b291d3949b023702cea8e03c660
urn:
URN:NBN:no-nb_digibok_2010081908040
title:
HiPer '99 : High Performance Computing on Hewlett-Packard Systems : (annual conference of the HP2EUG) : June 27-30, 1999, T[r]omsø, Norway. Bk. 1
creators:
2 results
1. HiPer '99 (konferanse)
2. Hewlett-Packard Company European Users' Group
year:
1999
publisher:
Computer Centre, University of Tromsø
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_2010081908040_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/73c37b291d3949b023702cea8e03c660
id:
b62d14bc9dc555dba5c0f9afcd5bae62
urn:
URN:NBN:no-nb_digibok_2010011404078
title:
Improving environmental performance of industrial products through product service systems
creators:
2 results
1. Lamvik, Trond
2. Norges teknisk-naturvitenskapelige universitet Institutt for maskinkonstruksjon og materialteknikk
year:
2001
publisher:
Norwegian University of Science and Technology
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_2010011404078_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b62d14bc9dc555dba5c0f9afcd5bae62

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.