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 2026-09-23T20:02:56Z in 0.281 seconds.

total:

104311

page:

size:

items:

10 results

id:
8be0816afe3efe71fe67113534d9110b
urn:
URN:NBN:no-nb_digibok_2011101908084
title:
Generalplan for Lierne kommune
creators:
1 results
1. Lierne
year:
1970
publisher:
[s.n.]
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_2011101908084_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/8be0816afe3efe71fe67113534d9110b
id:
62e08f74c16ed2649fed10396731691f
urn:
URN:NBN:no-nb_digibok_2016020907508
title:
Bygdebok for Lierne kommune. B. 1
creators:
1 results
1. Lierne
year:
1989
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2016020907508_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/62e08f74c16ed2649fed10396731691f
id:
d837008245d5e0c788203c9b6297ed96
urn:
URN:NBN:no-nb_digibok_2018032048094
title:
Bygdebok for Lierne kommune. B. 2
creators:
1 results
1. Lierne
year:
1992
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2018032048094_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d837008245d5e0c788203c9b6297ed96
id:
bec84dbb3ebdc9f1202fa5aa6497e94e
urn:
URN:NBN:no-nb_digibok_2011040808009
title:
Bygdebok for Lierne kommune. B. 4 : Gårdshistorie Sørli
creators:
1 results
1. Lierne
year:
1998
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2011040808009_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/bec84dbb3ebdc9f1202fa5aa6497e94e
id:
980a717b908e48b8192e03ace833a535
urn:
URN:NBN:no-nb_digibok_2018032048101
title:
Bygdebok for Lierne kommune. B. 3 : Gårdshistorie Nordli
creators:
1 results
1. Lierne
year:
1996
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2018032048101_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/980a717b908e48b8192e03ace833a535
id:
916f93f7d6c2fcca153c4a09b35f6399
urn:
URN:NBN:no-nb_digibok_2018031248087
title:
Bygdebok for Lierne kommune. B. 6 : Folk og historier
creators:
1 results
1. Lierne
year:
2015
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2018031248087_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/916f93f7d6c2fcca153c4a09b35f6399
id:
aeee072702ef25a4cecdb06a7c7506a3
urn:
not reported by source
title:
Bygdebok for Lierne kommune
creators:
3 results
1. Gustavsen, Håkon
2. Fagerli, Karl Audun
3. Lierne
year:
19890101
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nor
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/aeee072702ef25a4cecdb06a7c7506a3
id:
f2ba6a45e6f3ed15bdba26a2a309d227
urn:
not reported by source
title:
Lierne 100 år : 1873-1973
creators:
2 results
1. Aagård, Odd
2. Lierne Kommune
year:
19730101
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nor
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/f2ba6a45e6f3ed15bdba26a2a309d227
id:
5b6620b245213251adb63f7a1bfe8699
urn:
URN:NBN:no-nb_digibok_2023112048038
title:
Kirkene i Lierne 1873-2023
creators:
1 results
1. Lierne Bygdeboknemda
year:
2023
publisher:
Lierne kommune, Bygdeboknemda
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2023112048038_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5b6620b245213251adb63f7a1bfe8699
id:
07e6184cd77126861718c1aeff048851
urn:
URN:NBN:no-nb_digibok_2018013048017
title:
Bygdebok for Lierne kommune. B. 5 4. B. 5 4 : Utmarksbruk Temahefte Ferdselsveger
creators:
1 results
1. Lierne
year:
2011
publisher:
Lierne kommune
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Trøndelag
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_2018013048017_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/07e6184cd77126861718c1aeff048851

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.