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 2026-09-28T13:58:07Z in 0.466 seconds.

total:

19174

page:

size:

items:

10 results

id:
45785bc9877b2c2f0e34db302f8aa614
urn:
URN:NBN:no-nb_digibok_2009120200068
title:
Midgard : samfunnsfag. 6
creators:
1 results
1. Aarre, Tone
year:
1998
publisher:
Aschehoug
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_2009120200068_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/45785bc9877b2c2f0e34db302f8aa614
id:
53970316095f79e193d4763767000fc8
urn:
URN:NBN:no-nb_digibok_2009113004125
title:
Midgard : samfunnsfag. 6
creators:
1 results
1. Aarre, Tone
year:
1998
publisher:
Aschehoug
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_2009113004125_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/53970316095f79e193d4763767000fc8
id:
131815c720ff65f5bdc999e5960f42be
urn:
URN:NBN:no-nb_digibok_2010011300046
title:
Midgard : samfunnsfag. 7
creators:
3 results
1. Flatby, Bjørg Åsta
2. Lunnan, Håvard
3. Aarre, Tone
year:
1999
publisher:
Aschehoug
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_2010011300046_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/131815c720ff65f5bdc999e5960f42be
id:
9e2b56e4af19750a3716013601d5f378
urn:
URN:NBN:no-nb_digibok_2009010500078
title:
Midgard : samfunnsfag. 5
creators:
1 results
1. Aarre, Tone
year:
1997
publisher:
Aschehoug
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_2009010500078_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/9e2b56e4af19750a3716013601d5f378
id:
fcdffba50b6cc93e57859f5ca8254f53
urn:
URN:NBN:no-nb_digibok_2010011300050
title:
Midgard : samfunnsfag. 7
creators:
3 results
1. Flatby, Bjørg Åsta
2. Lunnan, Håvard
3. Aarre, Tone
year:
1999
publisher:
Aschehoug
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_2010011300050_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fcdffba50b6cc93e57859f5ca8254f53
id:
4c1fbe0303755f4b1391e47b0dc05242
urn:
URN:NBN:no-nb_digibok_2009062504065
title:
Epidemiological studies of multiple sclerosis : descriptive and analytical aspects
creators:
1 results
1. Midgard, Rune
year:
1996
publisher:
Department of Neurology, 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_2009062504065_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4c1fbe0303755f4b1391e47b0dc05242
id:
7a9e56c86b17cd9c2df1382849d7e157
urn:
URN:NBN:no-nb_digibok_2011032206018
title:
Midgard : samfunnsfag for barnetrinnet. 5 : Grunnbok
creators:
1 results
1. Aarre, Tone
year:
2006
publisher:
Aschehoug
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_2011032206018_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7a9e56c86b17cd9c2df1382849d7e157
id:
c242cf52480eb2b587889c63fc3debff
urn:
URN:NBN:no-nb_digibok_2014071007081
title:
Midgard : samfunnsfag for barnetrinnet. 5 : Grunnbok
creators:
1 results
1. Aarre, Tone
year:
2006
publisher:
Aschehoug
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_2014071007081_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c242cf52480eb2b587889c63fc3debff
id:
b6cc14dcf862efb3acaa106e0686527f
urn:
URN:NBN:no-nb_digibok_2011032206019
title:
Midgard : samfunnsfag for barnetrinnet. 6 : Grunnbok
creators:
1 results
1. Aarre, Tone
year:
2007
publisher:
Aschehoug
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_2011032206019_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b6cc14dcf862efb3acaa106e0686527f
id:
75fa4905a428575b85bc8cf181c9df60
urn:
URN:NBN:no-nb_digibok_2013060506101
title:
Midgard : samfunnsfag for barnetrinnet. 6 : Grunnbok
creators:
1 results
1. Aarre, Tone
year:
2007
publisher:
Aschehoug
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_2013060506101_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/75fa4905a428575b85bc8cf181c9df60

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.