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 2026-09-26T11:15:52Z in 0.200 seconds.

total:

3826

page:

size:

items:

10 results

id:
56d52dc99e7f0bb1f5a636000496abd9
urn:
not reported by source
title:
Alsaker fjordbruk as under lupen : 40 øre i overskudd pr. krone omsatt!
creators:
not reported by source
year:
2000
publisher:
not reported by source
media_types:
1 results
1. artikler
languages:
1 results
1. nob
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/56d52dc99e7f0bb1f5a636000496abd9
id:
5accbad0ab367ddc76567b4d7b5773dd
urn:
URN:NBN:no-nb_pliktmonografi_000037401
title:
Resipientundersøkelse i Ålfjordbotn 2014, Sveio kommune
creators:
1 results
1. Todt, Christiane
year:
2015
publisher:
Rådgivende Biologer AS
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_000037401_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5accbad0ab367ddc76567b4d7b5773dd
id:
fd536c6a01e34491a0f4f6eef438914a
urn:
URN:NBN:no-nb_pliktmonografi_000035740
title:
Dokumentasjonsvedlegg til søknad om nytt landbasert anlegg for produksjon av postsmolt for Onarheim Bruk AS avd. Postsmolt på Onarheim i Tysnes kommune, med konsekvensutredning
creators:
2 results
1. Johnsen, Geir Helge
2. Tveranger, Bjarte
year:
2018
publisher:
Rådgivende Biologer AS
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_000035740_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fd536c6a01e34491a0f4f6eef438914a
id:
3e7f2e435a86acd2030eda691f42c821
urn:
URN:NBN:no-nb_pliktmonografi_000038589
title:
Salar Bruk AS, Rylandsvåg i Meland kommune : resipientgransking Rosslandspollen
creators:
3 results
1. Furset, Thomas T.
2. Todt, Christiane
3. Haugsøen, Hilde E.
year:
2020
publisher:
Rådgivende Biologer AS
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_000038589_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3e7f2e435a86acd2030eda691f42c821
id:
f41236bb3ccfe21178223891ea66f7c8
urn:
URN:NBN:no-nb_pliktmonografi_000038032
title:
Oppdrettslokaliteten Ebne i Etne kommune : miljøovervaking av overgangssona – C-gransking
creators:
2 results
1. Sikveland, Silje Elvatun
2. Todt, Christiane
year:
2017
publisher:
Rådgivende Biologer AS
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_000038032_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f41236bb3ccfe21178223891ea66f7c8
id:
aaea802bab4d2ed0a3336a8c141b6b32
urn:
URN:NBN:no-nb_pliktmonografi_000038256
title:
Elsakervågen, Tysnes kommune. Risikovurdering av sediment
creators:
3 results
1. Furset, Thomas Tveit
2. Olsen , Bernt Rydland
3. Økland, Ingeborg E.
year:
2018
publisher:
Rådgivende Biologer AS
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_000038256_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/aaea802bab4d2ed0a3336a8c141b6b32
id:
38e99d23f69221edbbcb9fc3264ad3aa
urn:
URN:NBN:no-nb_pliktmonografi_000038254
title:
Reguleringsplan for Elsakervågen i Tysnes kommune. Konsekvensutredning for biologisk naturmangfold, naturressurser og friluftsliv
creators:
3 results
1. Olsen , Bernt Rydland
2. Haugsøen, Hilde Eirin
3. Blanck, Conrad J.
year:
2018
publisher:
Rådgivende Biologer AS
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_000038254_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/38e99d23f69221edbbcb9fc3264ad3aa
id:
a63e81d301c130b793ff5a684cc08c33
urn:
URN:NBN:no-nb_digibok_2020070648601
title:
Frå jord via vatn til sjø : Eide-familien og oppdrettseventyret 1917-2017
creators:
1 results
1. Vangsnes, Ella Marie Brekke
year:
2018
publisher:
John Grieg forl.
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_2020070648601_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a63e81d301c130b793ff5a684cc08c33
id:
1a5d0b8649f967cf47981e7104926f1c
urn:
URN:NBN:no-nb_digibok_2011081006034
title:
Erfaring - vår framtid : AS Bolaks 1975-2010
creators:
2 results
1. Vangsnes, Ella Marie Brekke
2. Bolaks AS
year:
2010
publisher:
AS Bolaks
media_types:
1 results
1. bøker
languages:
1 results
1. nno
county:
Vestland
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_2011081006034_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/1a5d0b8649f967cf47981e7104926f1c
id:
c6b0cab8a363e298237e55e083d9f61f
urn:
URN:NBN:no-nb_pliktmonografi_000037160
title:
Dokumentasjonsvedlegg til søknad om utvidelse ved Bjølve Bruk AS (reg. nr. H/KM 0008)
creators:
2 results
1. Tveranger, Bjarte
2. Johnsen , Geir H.
year:
2013
publisher:
Rådgivende Biologer AS
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_000037160_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c6b0cab8a363e298237e55e083d9f61f

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.