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 2026-09-24T07:57:23Z in 0.269 seconds.

total:

302897

page:

size:

items:

10 results

id:
c9e8559791fc2f397cbeeab89e6f317d
urn:
not reported by source
title:
Liv og røre i Frogn : informasjonsavis for Frogn kommune
creators:
1 results
1. Frogn
year:
20000101
publisher:
Frogn kommune
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/c9e8559791fc2f397cbeeab89e6f317d
id:
5357843178c7ef724fed9b21613020be
urn:
not reported by source
title:
Frogn kommune informerer
creators:
1 results
1. Frogn
year:
19970101
publisher:
Frogn kommune
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/5357843178c7ef724fed9b21613020be
id:
34ed9bba854c472e312af556cc6cda2b
urn:
not reported by source
title:
Liv og røre i Frogn : informasjonsavis for Frogn kommune
creators:
1 results
1. Frogn
year:
20000101
publisher:
Frogn kommune
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/34ed9bba854c472e312af556cc6cda2b
id:
6022212b010a65c58d3f300108025fcd
urn:
URN:NBN:no-nb_digitidsskrift_2024031283005_001
title:
Liv og røre i Frogn : informasjonsavis for Frogn kommune. 2003 Vol. 7 Nr. 1
creators:
1 results
1. Frogn
year:
2003
publisher:
Kommunen
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_2024031283005_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6022212b010a65c58d3f300108025fcd
id:
26e8fe78ae34df054d2dd3378950cc8b
urn:
URN:NBN:no-nb_digibok_2013101706120
title:
Frogn historielag 25 år
creators:
4 results
1. Frogn historielag
2. Andersen, Bjørg
3. Askautrud, Bjarne
4. Kolbjørnsrud, Jorunn
year:
2002
publisher:
Laget
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_2013101706120_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/26e8fe78ae34df054d2dd3378950cc8b
id:
4df7fc6411ffd147fbd20c78ee1e63aa
urn:
URN:NBN:no-nb_digibok_2014013108001
title:
Og bakom synger skogene : Frogn historielags prosjekt om Trygve Gulbranssens tilknytninge til Frogn
creators:
1 results
1. Frogn historielag
year:
1999
publisher:
Frogn historielag
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_2014013108001_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4df7fc6411ffd147fbd20c78ee1e63aa
id:
a7f4162aeacbdaddfc131f1deed02bf9
urn:
URN:NBN:no-nb_digibok_2016030368014
title:
Frogn kirke : vigslet 6. juni 1999
creators:
1 results
1. Frogn kirke
year:
1999
publisher:
Plan- og byggekomiteen for Frogn kirke
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_2016030368014_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a7f4162aeacbdaddfc131f1deed02bf9
id:
5f6ef7a339f5d0e18e390e42d95af1e4
urn:
URN:NBN:no-nb_digibok_2017030248137
title:
Ny frihet og nytt Frogn : 1945-2000
creators:
1 results
1. Øystå, Øystein
year:
2001
publisher:
Frogn kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Akershus
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_2017030248137_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5f6ef7a339f5d0e18e390e42d95af1e4
id:
e3f0feea3d81d7f58a0896fbe877debc
urn:
URN:NBN:no-nb_digibok_2014013008006
title:
Århundret forteller- : en bok om 1900 tallet
creators:
2 results
1. Dal skole (Frogn)
2. Frogn
year:
1999
publisher:
Frogn kommune
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_2014013008006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e3f0feea3d81d7f58a0896fbe877debc
id:
83f49b7346eeec34a2d4b54aadbf44c9
urn:
URN:NBN:no-nb_digibok_2014100808001
title:
Sommeridyll og krisetider : Drøbak og Frogn 1900-1945
creators:
2 results
1. Holm, Christian Hintze
2. Frogn
year:
2000
publisher:
Frogn kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Akershus
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_2014100808001_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/83f49b7346eeec34a2d4b54aadbf44c9

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.