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 2026-09-16T01:13:11Z in 0.247 seconds.

total:

297

page:

size:

items:

10 results

id:
ec0923475bd217d904965f22b96cca57
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18400914_22_257_1
title:
Morgenbladet
creators:
not reported by source
year:
18400914
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18400914_22_257_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ec0923475bd217d904965f22b96cca57
id:
ad79f3e1080b28874294a448994d83d6
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18380818_20_230_1
title:
Morgenbladet
creators:
not reported by source
year:
18380818
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18380818_20_230_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ad79f3e1080b28874294a448994d83d6
id:
7fb9f3e5682d65f88c7e444d5f4d922e
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18391016_21_289_1
title:
Morgenbladet
creators:
not reported by source
year:
18391016
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18391016_21_289_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7fb9f3e5682d65f88c7e444d5f4d922e
id:
55e9b1013fcec27cd1880d3ff4da5396
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18370217_20_48_1
title:
Morgenbladet
creators:
not reported by source
year:
18370217
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18370217_20_48_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/55e9b1013fcec27cd1880d3ff4da5396
id:
ea0904835122a4a08d367679ffa4a71c
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18370102_20_2_1
title:
Morgenbladet
creators:
not reported by source
year:
18370102
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18370102_20_2_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ea0904835122a4a08d367679ffa4a71c
id:
0da7d668145d4b3fc96d34c7274a9f62
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18401007_22_280_1
title:
Morgenbladet
creators:
not reported by source
year:
18401007
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18401007_22_280_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0da7d668145d4b3fc96d34c7274a9f62
id:
4757c899c2b53108a5c07db0faf1471c
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18360414_18_105_1
title:
Morgenbladet
creators:
not reported by source
year:
18360414
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18360414_18_105_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/4757c899c2b53108a5c07db0faf1471c
id:
3694fa948771d24bce93bfa509c9ec2d
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18400803_22_215_1
title:
Morgenbladet
creators:
not reported by source
year:
18400803
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18400803_22_215_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3694fa948771d24bce93bfa509c9ec2d
id:
f1e207f6499e220beed3be5124168205
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18390521_20_141_1
title:
Morgenbladet
creators:
not reported by source
year:
18390521
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18390521_20_141_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/f1e207f6499e220beed3be5124168205
id:
aa8d3385f0268af8ed2a13a6c33cb541
urn:
URN:NBN:no-nb_digavis_morgenbladet_null_null_18210413_0_103_1
title:
Morgenbladet
creators:
not reported by source
year:
18210413
publisher:
not reported by source
media_types:
1 results
1. aviser
languages:
1 results
1. Norsk bokmål
county:
Oslo
digital:
yes
public_domain:
yes
license:
publicdomain
viewability:
ALL
access_allowed_from:
EVERYWHERE
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digavis_morgenbladet_null_null_18210413_0_103_1-1_001_null/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/aa8d3385f0268af8ed2a13a6c33cb541

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.