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 2026-09-23T19:54:55Z in 0.360 seconds.

total:

12670

page:

size:

items:

10 results

id:
593ec8fddf318ebca6025dfd4cc3ea4b
urn:
URN:NBN:no-nb_digibok_2012070605027
title:
Utredning av atferdsvansker, omsorgssvikt og mishandling
creators:
1 results
1. Kvello, Øyvind
year:
2007
publisher:
Universitetsforl.
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_2012070605027_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/593ec8fddf318ebca6025dfd4cc3ea4b
id:
559122259a2fefafdc09194c17510df6
urn:
URN:NBN:no-nb_digibok_2020042248518
title:
Anders Lange : en norsk historie
creators:
1 results
1. Strømmen, Øyvind
year:
2016
publisher:
Cappelen Damm
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_2020042248518_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/559122259a2fefafdc09194c17510df6
id:
c3cec3ac7ea7e5b21ab8de400f0e636b
urn:
URN:NBN:no-nb_digibok_2012081725006
title:
Aschehoug og Gyldendals ettbinds leksikon
creators:
1 results
1. Tveterås, Egil
year:
1990
publisher:
Kunnskapsforl.
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_2012081725006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c3cec3ac7ea7e5b21ab8de400f0e636b
id:
6b181567f0d34ba9f090c5a919f02e60
urn:
URN:NBN:no-nb_digibok_2011041308058
title:
Caplex leksikon : norges- og verdensatlas, stort tabellverk
creators:
not reported by source
year:
2004
publisher:
Cappelen
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_2011041308058_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6b181567f0d34ba9f090c5a919f02e60
id:
173257581e7274c3168276142477dc7a
urn:
URN:NBN:no-nb_digibok_2018062707244
title:
Aschehoug og Gyldendals store norske leksikon. Supplement 2006
creators:
not reported by source
year:
2006
publisher:
Kunnskapsforl.
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_2018062707244_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/173257581e7274c3168276142477dc7a
id:
13ef65b2d1f9e7242fda7354d79b6cff
urn:
URN:NBN:no-nb_digibok_2014110407555
title:
Aschehoug og Gyldendals store ettbinds leksikon
creators:
not reported by source
year:
1994
publisher:
Kunnskapsforl.
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_2014110407555_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/13ef65b2d1f9e7242fda7354d79b6cff
id:
43e3c1b72997eb871ba7dff834cee2e6
urn:
URN:NBN:no-nb_digibok_2010071403008
title:
Aschehoug og Gyldendals store norske forhåndsleksikon A-Å
creators:
not reported by source
year:
1995
publisher:
Kunnskapsforl.
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_2010071403008_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/43e3c1b72997eb871ba7dff834cee2e6
id:
8d403939a63690336c6b9258a62ad7f8
urn:
URN:NBN:no-nb_digibok_2012032838018
title:
Aschehoug og Gyldendals store norske ettbinds leksikon
creators:
not reported by source
year:
2004
publisher:
Kunnskapsforl.
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_2012032838018_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8d403939a63690336c6b9258a62ad7f8
id:
6d68bfadc59e3174f0b2da1c8b28c95f
urn:
URN:NBN:no-nb_digibok_2017030648005
title:
Aschehoug og Gyldendals trebinds leksikon. 3 : P-Å
creators:
3 results
1. Henriksen, Petter
2. Reisegg, Øyvind
3. Smith-Meyer, Trond
year:
1994
publisher:
Kunnskapsforl.
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_2017030648005_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6d68bfadc59e3174f0b2da1c8b28c95f
id:
7c1fcbf649e923cb0f55072ea93a5636
urn:
URN:NBN:no-nb_digibok_2015111608033
title:
Bokklubbens tobinds leksikon. 2 : M-Å
creators:
3 results
1. Tveterås, Egil
2. Reisegg, Øyvind
3. Den norske bokklubben
year:
1991
publisher:
Den norske bokklubben
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_2015111608033_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7c1fcbf649e923cb0f55072ea93a5636

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.