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 2026-09-26T16:50:05Z in 0.206 seconds.

total:

14685

page:

size:

items:

10 results

id:
bbf39169287ba40eab048be4ffa350d7
urn:
URN:NBN:no-nb_plikttidsskrift_8b4211d5-d0fb-420b-aa8e-c9692bf79c93
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2026 Nr. 1
creators:
1 results
1. Norges optikerforbund
year:
2026
publisher:
Norges optikerforbund
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_plikttidsskrift_8b4211d5-d0fb-420b-aa8e-c9692bf79c93_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/bbf39169287ba40eab048be4ffa350d7
id:
e6b03f1095225e0e8ff40bcf04d86a1d
urn:
URN:NBN:no-nb_plikttidsskrift_705b8cb4-8727-4d42-aa39-f6a2b8d781c9
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2024 Nr. 5
creators:
1 results
1. Norges optikerforbund
year:
2024
publisher:
Norges optikerforbund
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_plikttidsskrift_705b8cb4-8727-4d42-aa39-f6a2b8d781c9_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/e6b03f1095225e0e8ff40bcf04d86a1d
id:
99360e251cd4f7b8c573a3a0a627b7c7
urn:
URN:NBN:no-nb_plikttidsskrift_45d88437-5cb6-440e-bc77-45945bc7d20d
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2026 Nr. 3
creators:
not reported by source
year:
2026
publisher:
Norges optikerforbund
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_plikttidsskrift_45d88437-5cb6-440e-bc77-45945bc7d20d_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/99360e251cd4f7b8c573a3a0a627b7c7
id:
ab7957eea3c90fd2a74980bbe98871fb
urn:
URN:NBN:no-nb_digitidsskrift_2023111483030_001
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2023 Nr. 5
creators:
1 results
1. Norges optikerforbund
year:
2023
publisher:
Norges optikerforbund
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_2023111483030_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/ab7957eea3c90fd2a74980bbe98871fb
id:
0ee593a1795929fb045f7588efc615c9
urn:
URN:NBN:no-nb_plikttidsskrift_98961395-f0e4-40bf-82f0-62897e072be8
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2024 Nr. 4
creators:
1 results
1. Norges optikerforbund
year:
2024
publisher:
Norges optikerforbund
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_plikttidsskrift_98961395-f0e4-40bf-82f0-62897e072be8_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0ee593a1795929fb045f7588efc615c9
id:
a54d4d529f2b4d98f735140986d9501f
urn:
URN:NBN:no-nb_plikttidsskrift_10baf53e-1018-46dc-bc46-9d6d0bb113fc
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2025 Nr. 2
creators:
1 results
1. Norges optikerforbund
year:
2025
publisher:
Norges optikerforbund
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_plikttidsskrift_10baf53e-1018-46dc-bc46-9d6d0bb113fc_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a54d4d529f2b4d98f735140986d9501f
id:
7e017d0c84f31eef0084bc4b91cfcbe0
urn:
URN:NBN:no-nb_digitidsskrift_2023011783002_001
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2022 Nr. 4
creators:
1 results
1. Norges optikerforbund
year:
2022
publisher:
Norges optikerforbund
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_2023011783002_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/7e017d0c84f31eef0084bc4b91cfcbe0
id:
20ab0c3d83e6469d222fe2be33b7a045
urn:
URN:NBN:no-nb_digitidsskrift_2024042283118_001
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2024 Nr. 1
creators:
1 results
1. Norges optikerforbund
year:
2024
publisher:
Norges optikerforbund
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_2024042283118_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/20ab0c3d83e6469d222fe2be33b7a045
id:
38379b73343a766b9b62c04e879e832a
urn:
URN:NBN:no-nb_digitidsskrift_2025120383050_001
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2025 Nr. 4
creators:
1 results
1. Norges optikerforbund
year:
2025
publisher:
Norges optikerforbund
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_2025120383050_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/38379b73343a766b9b62c04e879e832a
id:
232ed1fbed21f951a6fa6a339a255f74
urn:
URN:NBN:no-nb_digitidsskrift_2024041783044_001
title:
Optikeren (trykt utg.) : tidsskrift for optikk og optometri : organ for Norges optikerforbund. 2023 Nr. 6
creators:
1 results
1. Norges optikerforbund
year:
2023
publisher:
Norges optikerforbund
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_2024041783044_001_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/232ed1fbed21f951a6fa6a339a255f74

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.