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 2026-08-02T16:59:37Z in 0.195 seconds.

total:

6231

page:

size:

items:

10 results

id:
141fe40a846a69d4979be7bf91ce9070
urn:
URN:NBN:no-nb_digibok_2020012307212
title:
Infection after primary hip arthroplasty : epidemiology, time trends and risk factors in data from national health registers : The Norwegian Arthroplasty Register
creators:
3 results
1. Dale, Håvard
2. Universitetet i Bergen Institutt for kirurgiske fag
3. Nasjonalt register for leddproteser
year:
2013
publisher:
University of Bergen
media_types:
1 results
1. bøker
languages:
3 results
1. eng
2. nob
3. mul
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_2020012307212_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/141fe40a846a69d4979be7bf91ce9070
id:
2d7aaeb122fafc31b2b12ac95bfbcb9c
urn:
URN:NBN:no-nb_digibok_2016042509017
title:
Register : apri6 1974
creators:
1 results
1. NAL service
year:
1974
publisher:
NAL service
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_2016042509017_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2d7aaeb122fafc31b2b12ac95bfbcb9c
id:
08bc143530b364aa2713160453dc6fc4
urn:
URN:NBN:no-nb_digitidsskrift_2024031883023_001
title:
Register of ships. Supplement. 1973 Nr. 6
creators:
1 results
1. Det norske veritas
year:
1973
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
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_digitidsskrift_2024031883023_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/08bc143530b364aa2713160453dc6fc4
id:
c4d2e15cf514c593de62cd5ddb56283c
urn:
URN:NBN:no-nb_digitidsskrift_2023081583030_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1955 83
creators:
1 results
1. Det norske veritas
year:
1955
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583030_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/c4d2e15cf514c593de62cd5ddb56283c
id:
6dd9014e3dccaf3363d06968b90cc64c
urn:
URN:NBN:no-nb_digitidsskrift_2023081583031_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1957 85
creators:
1 results
1. Det norske veritas
year:
1957
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583031_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6dd9014e3dccaf3363d06968b90cc64c
id:
6a28964217badf09418e729ca4988335
urn:
URN:NBN:no-nb_digitidsskrift_2023081583032_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1968 96
creators:
1 results
1. Det norske veritas
year:
1968
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583032_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6a28964217badf09418e729ca4988335
id:
6d73c9151ba8fed7b5f686332189f32b
urn:
URN:NBN:no-nb_digitidsskrift_2023081583029_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1954 82
creators:
1 results
1. Det norske veritas
year:
1954
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583029_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/6d73c9151ba8fed7b5f686332189f32b
id:
4a9d96d90a7b225a53604537759a28ce
urn:
URN:NBN:no-nb_digitidsskrift_2023081583033_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1951 79
creators:
1 results
1. Det norske veritas
year:
1951
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583033_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4a9d96d90a7b225a53604537759a28ce
id:
e6afab347bfcaa2e57abb7e788e01974
urn:
URN:NBN:no-nb_digitidsskrift_2023081583034_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1953 81
creators:
1 results
1. Det norske veritas
year:
1953
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023081583034_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e6afab347bfcaa2e57abb7e788e01974
id:
ee74d4bc75b7d799dfd6455f1309c789
urn:
URN:NBN:no-nb_digitidsskrift_2023090183014_001
title:
Register over norske, svenske, danske, finske og islandske skip. 1950 Vol. 78
creators:
1 results
1. Det norske veritas
year:
1950
publisher:
Det norske veritas
media_types:
1 results
1. tidsskrift
languages:
3 results
1. eng
2. nob
3. mul
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_2023090183014_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ee74d4bc75b7d799dfd6455f1309c789

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.