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 2026-09-27T07:43:05Z in 0.222 seconds.

total:

257755

page:

size:

items:

10 results

id:
e98d9009cd25c3309a64f0eaa646a03e
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_018
title:
Ernst & Young magasinet. - 2012 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2012
publisher:
Ernst & Young
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_2025082280006_018_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e98d9009cd25c3309a64f0eaa646a03e
id:
d6502297c3aa2be3defca273fafd7e1b
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_013
title:
Ernst & Young magasinet. - 2009 Nr. 2
creators:
1 results
1. Ernst & Young
year:
2009
publisher:
Ernst & Young
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_2025082280006_013_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d6502297c3aa2be3defca273fafd7e1b
id:
111480a79aff24702014735b3acf5718
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_012
title:
Ernst & Young magasinet. - 2009 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2009
publisher:
Ernst & Young
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_2025082280006_012_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/111480a79aff24702014735b3acf5718
id:
27ddc3e5bc7c054c37f6edc5831d5912
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_020
title:
Ernst & Young magasinet. - 2013 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2013
publisher:
Ernst & Young
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_2025082280006_020_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/27ddc3e5bc7c054c37f6edc5831d5912
id:
2db9eaec91f2bfd77a60000bb3cc2a0e
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_017
title:
Ernst & Young magasinet. - 2011 Nr. 2
creators:
1 results
1. Ernst & Young
year:
2011
publisher:
Ernst & Young
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_2025082280006_017_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2db9eaec91f2bfd77a60000bb3cc2a0e
id:
f0f46b008548ecebb1901f35209908db
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_003
title:
Ernst & Young magasinet. - 2004 Nr. 2
creators:
1 results
1. Ernst & Young
year:
2004
publisher:
Ernst & Young
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_2025082280006_003_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f0f46b008548ecebb1901f35209908db
id:
c018283a17467730b111d15695bacaab
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_002
title:
Ernst & Young magasinet. - 2004 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2004
publisher:
Ernst & Young
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_2025082280006_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c018283a17467730b111d15695bacaab
id:
9dffb616e3314ac461f5544eff64b3a2
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_016
title:
Ernst & Young magasinet. - 2011 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2011
publisher:
Ernst & Young
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_2025082280006_016_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/9dffb616e3314ac461f5544eff64b3a2
id:
6c246687d8700947a9afb6e9911af986
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_019
title:
Ernst & Young magasinet. - 2012 Nr. 2
creators:
1 results
1. Ernst & Young
year:
2012
publisher:
Ernst & Young
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_2025082280006_019_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6c246687d8700947a9afb6e9911af986
id:
d3587dd538cc8106cd8f08854cb4944f
urn:
URN:NBN:no-nb_digitidsskrift_2025082280006_006
title:
Ernst & Young magasinet. - 2006 Nr. 1
creators:
1 results
1. Ernst & Young
year:
2006
publisher:
Ernst & Young
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_2025082280006_006_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d3587dd538cc8106cd8f08854cb4944f

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.