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 2026-09-27T15:12:36Z in 0.233 seconds.

total:

9506

page:

size:

items:

10 results

id:
213698531e3b096e17fef3e4c58036c4
urn:
URN:NBN:no-nb_pliktmonografi_000034833
title:
Drivers for bat activity and habitat use in boreal forest = : Drivere for flaggermusaktivitet og habitatbruk i boreal skog
creators:
1 results
1. McKay, Reed April
year:
2024
publisher:
Norwegian University of Life Sciences, Faculty of Environmental Sciences and Natural Resource Management
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_000034833_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/213698531e3b096e17fef3e4c58036c4
id:
589a401333ef5b82dfc0fe8acf42cd55
urn:
URN:NBN:no-nb_pliktmonografi_000082266
title:
Boreal lakes as mediators for terrestrial organic carbon processing and greenhouse gas emissions : a case study from Langtjern Norway
creators:
1 results
1. Lu, Xiang
year:
2026
publisher:
Department of Biosciences, Faculty of Mathematics and Natural Sciences, 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:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_pliktmonografi_000082266_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/589a401333ef5b82dfc0fe8acf42cd55
id:
21d9415a15800431774930beb3f9a068
urn:
URN:NBN:no-nb_pliktmonografi_000061041
title:
The role of summer grazing beef cattle in boreal production forest
creators:
1 results
1. Spedener, Mélanie
year:
2025
publisher:
University of Inland Norway, Faculty of Applied Ecology, Agricultural Sciences and Biotechnology
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_000061041_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/21d9415a15800431774930beb3f9a068
id:
cdef3b7effd540495badd5b9d870556b
urn:
URN:NBN:no-nb_digibok_2010050605013
title:
Vegetation-environment relationships of boreal spruce forests in ten monitoring reference areas in Norway
creators:
1 results
1. Økland, Tonje
year:
1996
publisher:
Botanical Garden and Museum, 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:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2010050605013_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/cdef3b7effd540495badd5b9d870556b
id:
811b1e65e4d00eb0c14009aee5f5efe7
urn:
URN:NBN:no-nb_digibok_2009030404094
title:
Proceedings : the ninth IBFRA Conference, Oslo, September 21-23, 1998
creators:
2 results
1. International Boreal Forest Research Association Conference 9 1998 Oslo
2. Woxholtt, Severin
year:
1999
publisher:
Norsk institutt for skogforskning
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_2009030404094_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/811b1e65e4d00eb0c14009aee5f5efe7
id:
cd7804596d194f029aee6e8969f92e57
urn:
URN:NBN:no-nb_digibok_2008101304092
title:
Distribution of soil moisture and groundwater levels in a boreal forest landscape : a model approach
creators:
1 results
1. Beldring, Stein
year:
2000
publisher:
Faculty of Mathematics and Natural Sciences, 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_2008101304092_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/cd7804596d194f029aee6e8969f92e57
id:
02fd11bb8b202f3a75140cc1f37eec3e
urn:
URN:NBN:no-nb_digitidsskrift_2025012880004_004
title:
Birkebeiner'n : offisielt magasin for Birkebeinerrennet AS og Birkebeinerrittet AS. 2010 Vol. 22 Nr. 4
creators:
2 results
1. Birkebeinerrittet
2. Birkebeinerrennet
year:
2010
publisher:
Sport media
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2025012880004_004_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/02fd11bb8b202f3a75140cc1f37eec3e
id:
21f3ea9a3f1683b2f2d52d5eec8745af
urn:
URN:NBN:no-nb_pliktmonografi_000080933
title:
Free-ranging cattle in the boreal forest : predicting behaviours and exploring bahavioural drivers with virtual fencing technology
creators:
1 results
1. Versluijs, Erik
year:
2026
publisher:
not reported by source
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_000080933_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/21f3ea9a3f1683b2f2d52d5eec8745af
id:
d036a9783a633ed3693ad469c46210fc
urn:
URN:NBN:no-nb_digitidsskrift_2026022680106_004
title:
Birkebeiner'n : offisielt magasin for Birkebeinerrennet AS og Birkebeinerrittet AS. 2005 Vol. 17 Nr. 3
creators:
2 results
1. Birkebeinerrittet
2. Birkebeinerrennet
year:
2005
publisher:
Sport media
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2026022680106_004_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d036a9783a633ed3693ad469c46210fc
id:
f1d466806183b476ac4577233b9e5c79
urn:
URN:NBN:no-nb_digibok_2023032348078
title:
Outlying Europe and the Nearer Orient : a narrative of recent travel
creators:
1 results
1. Moore, Joseph
year:
1880
publisher:
J.B. Lippincott & Co.
media_types:
1 results
1. bøker
languages:
1 results
1. eng
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_2023032348078_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f1d466806183b476ac4577233b9e5c79

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.