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.

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": "..."}
}

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 2026-08-03T04:43:55Z in 0.240 seconds.

total:

page:

size:

items:

10 results

id:
5fd3951cfe32e3583f77abbc3a19aca6
urn:
URN:NBN:no-nb_digibok_2026021706045
title:
Salmonid alphavirus subtype 3 : characterization by phylogenetics and reverse genetics
creators:
2 results
1. Karlsen, Marius André de Feijter
2. Universitetet i Bergen.
year:
2015
publisher:
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:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2026021706045_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5fd3951cfe32e3583f77abbc3a19aca6
id:
396d33a7f7b3d8ebe6a21f6fcf95b9bb
urn:
URN:NBN:no-nb_digavis_stavangeraftenblad_null_null_20151222_123_299_1
title:
Stavanger aftenblad
creators:
not reported by source
year:
20151222
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Rogaland
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_stavangeraftenblad_null_null_20151222_123_299_1-1_001_saha/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/396d33a7f7b3d8ebe6a21f6fcf95b9bb
id:
afb7a1d0787833cdfb54ff46434faba4
urn:
URN:NBN:no-nb_digavis_ofotenstidende_null_null_19990510_101_53_1
title:
Ofotens Tidende
creators:
not reported by source
year:
19990510
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Nordland
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_digavis_ofotenstidende_null_null_19990510_101_53_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/afb7a1d0787833cdfb54ff46434faba4
id:
8bd345b55675d5f8be3a0f4848f9ca7c
urn:
URN:NBN:no-nb_digavis_sarpsborgarbeiderbla_null_null_19381112_10_262_1
title:
Sarpsborg Arbeiderblad
creators:
not reported by source
year:
19381112
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Østfold
digital:
yes
public_domain:
no
license:
ccbync
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_sarpsborgarbeiderbla_null_null_19381112_10_262_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8bd345b55675d5f8be3a0f4848f9ca7c
id:
117ccf8df2d14fb747f6a9fa0c50abca
urn:
URN:NBN:no-nb_digavis_dagbladet_null_1_20180226_150_48_1
title:
Dagbladet (Oslo: 1869-)
creators:
not reported by source
year:
20180226
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_dagbladet_null_1_20180226_150_48_1-1_001_nyheter/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/117ccf8df2d14fb747f6a9fa0c50abca
id:
a49a24eedc00deda69102c7c9a418e99
urn:
URN:NBN:no-nb_digavis_varingen_null_null_20140430_69_33_1
title:
Varingen
creators:
not reported by source
year:
20140430
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Akershus
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_varingen_null_null_20140430_69_33_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a49a24eedc00deda69102c7c9a418e99
id:
b0e5f08316541b42f2a827620c1f2ca6
urn:
URN:NBN:no-nb_digavis_romerikesblad_null_null_20140526_113_118_1
title:
Romerikes Blad
creators:
not reported by source
year:
20140526
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Akershus
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_romerikesblad_null_null_20140526_113_118_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b0e5f08316541b42f2a827620c1f2ca6
id:
648864f964fc5fd031703c38b14143b9
urn:
URN:NBN:no-nb_digavis_avisanordland_null_null_20230104_0_3_1
title:
Avisa Nordland
creators:
not reported by source
year:
20230104
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Nordland
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_avisanordland_null_null_20230104_0_3_1-1_001_hovedavis/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/648864f964fc5fd031703c38b14143b9
id:
196dd1cfbd7382a205fe20e60888f2f5
urn:
URN:NBN:no-nb_digavis_gjengangeren_null_null_20120929_1_227_1
title:
Gjengangeren
creators:
not reported by source
year:
20120929
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Vestfold
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_gjengangeren_null_null_20120929_1_227_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/196dd1cfbd7382a205fe20e60888f2f5
id:
d62e0ebf3d1696cdebf968b046252aa9
urn:
URN:NBN:no-nb_digavis_dagbladet_null_1_20140717_146_175_1
title:
Dagbladet (Oslo: 1869-)
creators:
not reported by source
year:
20140717
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
LIBRARY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_dagbladet_null_1_20140717_146_175_1-1_001_nyheter/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d62e0ebf3d1696cdebf968b046252aa9

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

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.