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 2026-09-26T04:48:58Z in 0.212 seconds.

total:

39133

page:

size:

items:

10 results

id:
f100f38c2b6aa5d992a83fc861d79131
urn:
URN:NBN:no-nb_digibok_2009020904064
title:
Mucosal immunity to group B streptococci in the female genital tract : prospects for development of a mucosal vaccine
creators:
1 results
1. Hordnes, Knut
year:
1998
publisher:
National Institute of Public Health
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_2009020904064_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f100f38c2b6aa5d992a83fc861d79131
id:
b462b076d6195fa6ff91b9030d16ae78
urn:
URN:NBN:no-nb_digibok_2014051908193
title:
Bergen faktorforening 75 år
creators:
1 results
1. Bergen faktorforening
year:
1996
publisher:
Foreningen
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_2014051908193_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b462b076d6195fa6ff91b9030d16ae78
id:
6093f5ff8418bf93aa77b425fc0af56b
urn:
URN:NBN:no-nb_digibok_2014021748083
title:
"Vai fritt vår stolte, frie fane" : en liten beretning om buekorpsfaner
creators:
4 results
1. Sørensen, Jostein
2. Olsen, Knut
3. Bergen faktorforening
4. Hordnes, Gunnar
year:
2005
publisher:
Bergen faktorforening
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_2014021748083_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6093f5ff8418bf93aa77b425fc0af56b
id:
8a319d70fa49a82335931fb80672dad1
urn:
URN:NBN:no-nb_pliktmonografi_000001827
title:
Med gull i himmelrand : 120 forteljingar frå Salhus
creators:
1 results
1. Langeland, Knut
year:
2021
publisher:
Dikt & Datt
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_000001827_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8a319d70fa49a82335931fb80672dad1
id:
ff3b31c0d2c32eefc167bdf9caa8bfc2
urn:
URN:NBN:no-nb_digibok_2013071708122
title:
Norske ættesogor
creators:
1 results
1. Liestøl, Knut
year:
1993
publisher:
Åseral kommune, kulturetaten
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_2013071708122_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ff3b31c0d2c32eefc167bdf9caa8bfc2
id:
ad38e8cddd16b9fd263d66d2b6df9f22
urn:
URN:NBN:no-nb_digibok_2013081224001
title:
Kongssete og kjøpstad : fra opphavet til 1536
creators:
1 results
1. Helle, Knut
year:
1982
publisher:
Universitetsforl.
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Vestland
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_2013081224001_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ad38e8cddd16b9fd263d66d2b6df9f22
id:
13225711d1d432dff451d856454a72e0
urn:
URN:NBN:no-nb_digibok_2010030810001
title:
Kongssete og kjøpstad : fra opphavet til 1536
creators:
1 results
1. Helle, Knut
year:
1995
publisher:
Alma mater
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_2010030810001_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/13225711d1d432dff451d856454a72e0
id:
fcb0d0f82c5dcc256102d4a3e16c1e9e
urn:
URN:NBN:no-nb_digibok_2011121538006
title:
Fotturer med Stor-Bergen : en guide til naturopplevelser for hele familien
creators:
2 results
1. Langeland, Knut
2. Stor-Bergen boligbyggelag
year:
2005
publisher:
Stor-Bergen
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_2011121538006_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fcb0d0f82c5dcc256102d4a3e16c1e9e
id:
6ede28d53703df32a9a289a4832e1783
urn:
URN:NBN:no-nb_pliktmonografi_000012187
title:
Brann ut i verden
creators:
3 results
1. Kristiansen, Knut Normann
2. Throndsen, Fabian M.P.
3. Lekve, Jørn
year:
2022
publisher:
Kapabel
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_000012187_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6ede28d53703df32a9a289a4832e1783
id:
56cfc2b2593fe3f7298f0b0b694cf28d
urn:
URN:NBN:no-nb_digibok_2025022448076
title:
Norske gardsbruk : Borre
creators:
2 results
1. Granum, Svein Knut
2. Haavardsholm, Frøydis
year:
2022
publisher:
Forlaget S. K. Granum AS
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Vestfold
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_2025022448076_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/56cfc2b2593fe3f7298f0b0b694cf28d

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.