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 2026-10-04T00:13:44Z in 2.877 seconds.

total:

32222

page:

size:

items:

10 results

id:
df313328c974a6f9d7ee8a801ddc5bec
urn:
URN:NBN:no-nb_digibok_2014020505004
title:
Miljøundersøkelse ved Norsk Blikkvalseverk AS
creators:
1 results
1. Tvedten, Øyvind
year:
1996
publisher:
Institutt for fiskeri- og marinbiologi, Universitetet i Bergen
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_2014020505004_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/df313328c974a6f9d7ee8a801ddc5bec
id:
cb76c81e69b3a5a251f0e473a136f8a7
urn:
URN:NBN:no-nb_digitidsskrift_2026022680106_002
title:
Birkebeiner'n : offisielt magasin for Birkebeinerrennet AS og Birkebeinerrittet AS. 2005 Vol. 17 Nr. 2
creators:
2 results
1. Birkebeinerrittet
2. Birkebeinerrennet
year:
2005
publisher:
Sport 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_2026022680106_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/cb76c81e69b3a5a251f0e473a136f8a7
id:
2f7a9c589e1fc90c2c547423c1c6b3ae
urn:
URN:NBN:no-nb_digibok_2013071205168
title:
Undersøkelse av miljøforhold utenfor Norsk blikkvalseverk AS
creators:
1 results
1. Tvedten, Øyvind
year:
1997
publisher:
Institutt for fiskeri- og marinbiologi, Universitetet i Bergen
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_2013071205168_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/2f7a9c589e1fc90c2c547423c1c6b3ae
id:
42ef9ba2f90338472ea304d62c77e50c
urn:
URN:NBN:no-nb_digitidsskrift_2026021280045_002
title:
Bam (Hjemmet Mortensen AS). 2004 Nr. 1
creators:
not reported by source
year:
2004
publisher:
Hjemmet Mortensen
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_2026021280045_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/42ef9ba2f90338472ea304d62c77e50c
id:
8a0556d244399b28870bafefb709b18d
urn:
URN:NBN:no-nb_digitidsskrift_2026021280044_002
title:
Bam (Hjemmet Mortensen AS). 2005 Nr. 0
creators:
2 results
1. Barnemagasinet
2. Foreldre & barn (tidsskrift)
year:
2005
publisher:
Hjemmet Mortensen
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_2026021280044_002_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8a0556d244399b28870bafefb709b18d
id:
d0ced8a72cf93916a345d094bcaa94f9
urn:
URN:NBN:no-nb_digitidsskrift_2026021280045_001
title:
Bam (Hjemmet Mortensen AS). 2004 Nr. 0
creators:
2 results
1. Barnemagasinet
2. Foreldre & barn (tidsskrift)
year:
2004
publisher:
Hjemmet Mortensen
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_2026021280045_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d0ced8a72cf93916a345d094bcaa94f9
id:
44b395b9a8257a9fd32838071651ceba
urn:
URN:NBN:no-nb_digibok_2007061901024
title:
Triterpeneglycosides as inhibitors of fungal growth and metabolism
creators:
1 results
1. Olsen, R.A.
year:
1975
publisher:
Department of Microbiology, Agricultural University of Norway
media_types:
1 results
1. bøker
languages:
1 results
1. eng
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_2007061901024_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/44b395b9a8257a9fd32838071651ceba
id:
69b7647e2a83d87f9c3692488f01c919
urn:
URN:NBN:no-nb_digitidsskrift_2022112283002_001
title:
Bam (Hjemmet Mortensen AS). 1987 Vol. 0 Nr. Prøvenummer
creators:
2 results
1. Barnemagasinet
2. Foreldre & barn (tidsskrift)
year:
1987
publisher:
Hjemmet Mortensen
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_2022112283002_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/69b7647e2a83d87f9c3692488f01c919
id:
8daf0f9deb099933b434642fac3fbdf9
urn:
URN:NBN:no-nb_digitidsskrift_2022070180050_007
title:
Bam (Hjemmet Mortensen AS). 1988 Vol. 2 Nr. 12
creators:
2 results
1. Barnemagasinet
2. Foreldre & barn (tidsskrift)
year:
1988
publisher:
Hjemmet Mortensen
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_2022070180050_007_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8daf0f9deb099933b434642fac3fbdf9
id:
18f1222ad0042f4d33b1c9fda1720be3
urn:
URN:NBN:no-nb_digibok_2012071608107
title:
Undersøkelse av miljøforhold i sjøen ved Corus Packaging Plus Norway AS
creators:
4 results
1. Johannessen, Per
2. Botnen, Helge B.
3. Vassenden, Gisle
4. Johansen, Per-Otto
year:
2001
publisher:
Institutt for fiskeri- og marinbiologi, Universitetet i Bergen
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_2012071608107_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/18f1222ad0042f4d33b1c9fda1720be3

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.