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 2026-09-27T20:34:48Z in 0.224 seconds.

total:

48974

page:

size:

items:

10 results

id:
2c07bbe64f0b5c6793b25bafc68bd80f
urn:
URN:NBN:no-nb_pliktmonografi_000042188
title:
Prosjekter 2024-2025 : Bane NOR Eiendom
creators:
not reported by source
year:
2024
publisher:
Bane NOR Eiendom AS
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_000042188_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2c07bbe64f0b5c6793b25bafc68bd80f
id:
9339dac36ca92e31310382cdc96b116c
urn:
URN:NBN:no-nb_digitidsskrift_2025072280059_003
title:
Eiendom : bransjemagasinet. 2006 Nr. 3
creators:
not reported by source
year:
2006
publisher:
Eiendomsnytt AS
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_2025072280059_003_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/9339dac36ca92e31310382cdc96b116c
id:
b888aafd452717ba93de0f1af10b10ee
urn:
URN:NBN:no-nb_digitidsskrift_2025072280059_002
title:
Eiendom : bransjemagasinet. 2006 Nr. 2
creators:
not reported by source
year:
2006
publisher:
Eiendomsnytt AS
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_2025072280059_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/b888aafd452717ba93de0f1af10b10ee
id:
a7c24130984098f9b17293e76dd85fb3
urn:
URN:NBN:no-nb_digitidsskrift_2025072280059_004
title:
Eiendom : bransjemagasinet. 2006 Nr. 4
creators:
not reported by source
year:
2006
publisher:
Eiendomsnytt AS
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_2025072280059_004_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a7c24130984098f9b17293e76dd85fb3
id:
297766be54858e7be860bcfb7eef6f1a
urn:
URN:NBN:no-nb_digitidsskrift_2025072280059_005
title:
Eiendom : bransjemagasinet. 2006 Nr. 5
creators:
not reported by source
year:
2006
publisher:
Eiendomsnytt AS
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_2025072280059_005_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/297766be54858e7be860bcfb7eef6f1a
id:
96e2b8cca7c5012917bfafb02701915a
urn:
URN:NBN:no-nb_digitidsskrift_2025072280059_006
title:
Eiendom : bransjemagasinet. 2006 Nr. 6
creators:
not reported by source
year:
2006
publisher:
Eiendomsnytt AS
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_2025072280059_006_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/96e2b8cca7c5012917bfafb02701915a
id:
11183f4d8778bafe2b0ee5c0d9ec9477
urn:
URN:NBN:no-nb_pliktmonografi_000010054
title:
Clemens Saers : lærer på liv og død
creators:
1 results
1. Lindh, Knut
year:
2022
publisher:
Borg forlag
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_000010054_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/11183f4d8778bafe2b0ee5c0d9ec9477
id:
040f7ad748e205c9f944f9b2302248ee
urn:
URN:NBN:no-nb_digitidsskrift_2025081980019_001
title:
Estate eiendom : magasinet for eiendomsbransjen. mai 2006 Nr. 5
creators:
not reported by source
year:
2006
publisher:
Estate media
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_2025081980019_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/040f7ad748e205c9f944f9b2302248ee
id:
0e6338d03fd0bb4abcf0d1dd7c51a712
urn:
URN:NBN:no-nb_digitidsskrift_2024062080062_003
title:
Estate eiendom : magasinet for eiendomsbransjen. juni 2007 Vol. 5 Nr. 3
creators:
not reported by source
year:
2007
publisher:
Estate media
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_2024062080062_003_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0e6338d03fd0bb4abcf0d1dd7c51a712
id:
e57b6c333becf6d22f5b66ccb79e2db1
urn:
URN:NBN:no-nb_digitidsskrift_2024062080062_005
title:
Estate eiendom : magasinet for eiendomsbransjen. november 2007 Vol. 5 Nr. 5
creators:
not reported by source
year:
2007
publisher:
Estate media
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_2024062080062_005_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e57b6c333becf6d22f5b66ccb79e2db1

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.