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 2026-09-24T19:18:38Z in 0.191 seconds.

total:

75113

page:

size:

items:

10 results

id:
65f378495db73d391ff18924223df39a
urn:
URN:NBN:no-nb_digitidsskrift_2024041580014_008
title:
Medlemsblad for Østfold fagforening. 2011 Nr. 3
creators:
1 results
1. Østfold fagforening
year:
2011
publisher:
Østfold fagforening
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_2024041580014_008_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/65f378495db73d391ff18924223df39a
id:
936349dee637f6bad303c8463e50987e
urn:
URN:NBN:no-nb_digitidsskrift_2024041580014_003
title:
Medlemsblad for Østfold fagforening. 2009 Nr. 2
creators:
1 results
1. Østfold fagforening
year:
2009
publisher:
Østfold fagforening
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_2024041580014_003_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/936349dee637f6bad303c8463e50987e
id:
fa6486ef31b8fbffad8e6250f9f74644
urn:
URN:NBN:no-nb_digitidsskrift_2024041580014_005
title:
Medlemsblad for Østfold fagforening. 2010 Nr. 1
creators:
1 results
1. Østfold fagforening
year:
2010
publisher:
Østfold fagforening
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_2024041580014_005_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fa6486ef31b8fbffad8e6250f9f74644
id:
0cca054986394c24538d3b14899865c6
urn:
URN:NBN:no-nb_digitidsskrift_2019022081024_001
title:
Meldingsblad (Østfold historielag). 2001 Vol. 25 Nr. 1
creators:
1 results
1. Østfold historielag
year:
2001
publisher:
Historielaget
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
yes
public_domain:
no
license:
ccbyncnd
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2019022081024_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0cca054986394c24538d3b14899865c6
id:
b3003394d58e0752f9fa72018697cf5f
urn:
URN:NBN:no-nb_digitidsskrift_2025051380071_001
title:
Røde kors magasinet Østfold. 2018 Nr. 1
creators:
1 results
1. Østfold røde kors
year:
2018
publisher:
Østfold røde kors
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_2025051380071_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b3003394d58e0752f9fa72018697cf5f
id:
fdb3ff47f0872cc99055ab775dbdf766
urn:
URN:NBN:no-nb_digitidsskrift_2019022081043_001
title:
Meldingsblad (Østfold historielag). 1997 Vol. 21 Nr. 1
creators:
1 results
1. Østfold historielag
year:
1997
publisher:
Historielaget
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
yes
public_domain:
no
license:
ccbyncnd
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2019022081043_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/fdb3ff47f0872cc99055ab775dbdf766
id:
a62d1f2d7672d6074f3c785a4db9af48
urn:
URN:NBN:no-nb_digitidsskrift_2019010981146_001
title:
Wiwar : gammelt fra Østfold på ny måte. 2002 Nr. 2 56
creators:
1 results
1. Østfold historielag
year:
2002
publisher:
Østfold historielag
media_types:
1 results
1. tidsskrift
languages:
1 results
1. nob
county:
not reported by source
digital:
yes
public_domain:
no
license:
ccbyncnd
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digitidsskrift_2019010981146_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a62d1f2d7672d6074f3c785a4db9af48
id:
06f387a4c9c222c47875544e14ac9239
urn:
URN:NBN:no-nb_digitidsskrift_2025033180047_001
title:
Røde kors avisa (Sarpsborg) : Østfold : informasjonsavis fra Østfold røde kors. 2016 Nr. 1
creators:
1 results
1. Østfold røde kors
year:
2016
publisher:
Østfold røde kors
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_2025033180047_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/06f387a4c9c222c47875544e14ac9239
id:
7a79e15d322cd6be8ead8b64dd9d6036
urn:
URN:NBN:no-nb_digitidsskrift_2025050780066_001
title:
Røde kors avisa (Sarpsborg) : Østfold : informasjonsavis fra Østfold røde kors. 2017 Nr. 1
creators:
1 results
1. Østfold røde kors
year:
2017
publisher:
Østfold røde kors
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_2025050780066_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7a79e15d322cd6be8ead8b64dd9d6036
id:
759f46f6583147435addd04008208ba1
urn:
URN:NBN:no-nb_digitidsskrift_2025033180047_002
title:
Røde kors avisa (Sarpsborg) : Østfold : informasjonsavis fra Østfold røde kors. 2016 Nr. 2
creators:
1 results
1. Østfold røde kors
year:
2016
publisher:
Østfold røde kors
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_2025033180047_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/759f46f6583147435addd04008208ba1

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.