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 2026-09-25T11:24:32Z in 0.208 seconds.

total:

125526

page:

size:

items:

10 results

id:
b449b11e7a724daa511370f3b6b59e75
urn:
URN:NBN:no-nb_digibok_2008061000041
title:
Frozen erythrocytes as reagent for immunological and serological assays
creators:
1 results
1. Myhrvold, Veslemøy
year:
1982
publisher:
[Universitetet i Oslo, Odontologisk insitutt for mikrobiologi]
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_2008061000041_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b449b11e7a724daa511370f3b6b59e75
id:
b7b1b1990994706a486ecbf2aea10d88
urn:
URN:NBN:no-nb_digibok_2008062404054
title:
Ideologienes tidsalder 1815-1850
creators:
1 results
1. Myhrvold, Jul
year:
1975
publisher:
Tanum-Norli
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_2008062404054_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b7b1b1990994706a486ecbf2aea10d88
id:
1c1ead3ed45f0fd7896d028cc9f5f92a
urn:
URN:NBN:no-nb_digibok_2009090100003
title:
Resipientundersøkelse ved Våge fyllplass
creators:
1 results
1. Myhrvold, Arne
year:
1997
publisher:
Rogaland Research
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_2009090100003_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/1c1ead3ed45f0fd7896d028cc9f5f92a
id:
395bb3d6330d3b95656b48b3f614adc9
urn:
URN:NBN:no-nb_digibok_2021102948028
title:
Wigdis' vei mot stjernene
creators:
1 results
1. Myhrvold, Kate
year:
2018
publisher:
Kolofon
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_digibok_2021102948028_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/395bb3d6330d3b95656b48b3f614adc9
id:
3c41616a3d87769708db0cf15cdd302b
urn:
URN:NBN:no-nb_digibok_2008062404034
title:
Dei store revolusjonane : tida 1770-1815
creators:
1 results
1. Myhrvold, Jul
year:
1978
publisher:
Cappelen
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_2008062404034_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3c41616a3d87769708db0cf15cdd302b
id:
210a2e69e0d1abf59cefdf8ff4481cc9
urn:
URN:NBN:no-nb_digibok_2015111808111
title:
Å erobre sitt eget liv : sammenhengen mellom valgfrihet i forhold til dagliglivets aktiviteter og trivsel : en kvasi-eksperimentell pilotstudie på et sykehjem
creators:
1 results
1. Myhrvold, Trine
year:
1994
publisher:
Universitetet
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_2015111808111_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/210a2e69e0d1abf59cefdf8ff4481cc9
id:
940f3f4b6383831d1832e740fe78e7b3
urn:
URN:NBN:no-nb_digibok_2008062404038
title:
Ideologiane : tida 1815-1850
creators:
1 results
1. Myhrvold, Jul
year:
1978
publisher:
Cappelen
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_2008062404038_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/940f3f4b6383831d1832e740fe78e7b3
id:
2381ccdabc3f8f0d4f56b9ad19377059
urn:
URN:NBN:no-nb_digibok_2008062404053
title:
Imperialismen : tida 1870-1920
creators:
1 results
1. Myhrvold, Jul
year:
1977
publisher:
Tanum-Norli
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_2008062404053_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2381ccdabc3f8f0d4f56b9ad19377059
id:
a526a114f0a9e1c7d0a1e4ce20595a62
urn:
URN:NBN:no-nb_digibok_2008070804005
title:
Verda 1770-1870
creators:
1 results
1. Myhrvold, Jul
year:
1978
publisher:
Tanum-Nordli
media_types:
1 results
1. bøker
languages:
1 results
1. nno
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_2008070804005_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a526a114f0a9e1c7d0a1e4ce20595a62
id:
b8af247351e9116fd82841122616d854
urn:
URN:NBN:no-nb_digiebok_10420
title:
Power to protect? : participation in decentralized conservation management: The case of Kangchenjunga conservation area, Nepal
creators:
1 results
1. Myhrvold, Andreas Røise
year:
2014
publisher:
Fridtjof Nansens institutt
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_digiebok_10420_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b8af247351e9116fd82841122616d854

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.