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.

ParameterRequirementJSON typeDescription
qrequiredstringFree-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
media_typeoptionalunionRestrict 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.
languageoptionalunionLanguage 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.
countyoptionalunionNorwegian county name, e.g. "Troms", "Oslo".
year_fromoptionalunionRestrict to items published/issued in this year range (inclusive).
year_tooptionalunionRestrict to items published/issued in this year range (inclusive).
digital_onlyoptionalbooleanOnly items that have been digitized.
sortoptionalunionOne of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
pageoptionalintegerZero-based page index.
sizeoptionalintegerResults per page, 1 to 100 (default 10).
limitoptionalintegerGateway page size; default 25, maximum 100.
offsetoptionalintegerNumber 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.

Type: string. Free-text query. Supports field-restricted terms too, e.g. "subject:fiske year:1970" combined with free text.
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.
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.
Type: string. Norwegian county name, e.g. "Troms", "Oslo".
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: integer. Restrict to items published/issued in this year range (inclusive).
Type: yes/no. Only items that have been digitized.
Type: string. One of date, title, otherid, firstDigitalContentTime, optionally suffixed ",desc" (default: relevance).
Type: integer. Zero-based page index.
Type: integer. Results per page, 1 to 100 (default 10).

Result

Source: National Library of Norway. Retrieved 2026-10-03T21:29:24Z in 1.348 seconds.

total:
27418
page:
0
size:
10
items:

10 results

  1. id:
    3adf22769429c49508cd00e0c9bb83ca
    urn:
    URN:NBN:no-nb_digibok_2017103026008
    title:
    Disputatio medica inauguralis, De Hydrope ascite, qvam praeside tri-uno Deo, ex auctoritate magnifici d. rectoris, D. Johannis Coccii, in Inclytâ Lugd. Batav. academia eloquentiae & historiarum professoris celeberrimi, nec-non amplissimi senatûs academici consensu, & almae facultatis medicae decreto, pro gradu doctoratus summique medicina honoribus ac privilegiis legitimè obtinendis, capiendis, eruditorum examini subjicit Mauritius Owenius, Berga-Norwegus. Die 30. Maji, loco, horisque consuetis
    creators:

    4 results

    1. Owenius, Moritz
    2. Elsevier, Johannes
    3. Rijksuniversiteit te Leiden
    4. Coccius, Johannes
    year:
    1676
    publisher:
    Apud Viduam & Haeredes Johannis Elsevirii, Academiae Typograph.
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. lat
    county:
    not reported by source
    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_digibok_2017103026008_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/3adf22769429c49508cd00e0c9bb83ca
  2. id:
    f223388186a314698ca15875822464f0
    urn:
    URN:NBN:no-nb_digibok_2010041206006
    title:
    Sources of earnings dispersion in a linked employer-employee data set : evidence from Norway
    creators:

    3 results

    1. Salvanes, Kjell G.
    2. Burgess, Simon M.
    3. Lane, Julia
    year:
    1999
    publisher:
    Norges handelshøyskole, Institutt for samfunnsøkonomi
    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_2010041206006_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/f223388186a314698ca15875822464f0
  3. id:
    9e8899e2e5ff31b2c7e5e9da25198089
    urn:
    URN:NBN:no-nb_digibok_2024052948012
    title:
    Physical oceanography of frontal zones in the subarctic seas
    creators:

    3 results

    1. Kostianoi, A.G.
    2. Nihoul, Jacques C.J.
    3. Rodionov, Vyacheslav B.
    year:
    2004
    publisher:
    Elsevier
    media_types:

    1 results

    1. bøker
    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_digibok_2024052948012_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/9e8899e2e5ff31b2c7e5e9da25198089
  4. id:
    91298d0e0fcccd232841b80fcabe0a89
    urn:
    URN:NBN:no-nb_digibok_2016071108217
    title:
    Labor market rigidities and environmental tax reforms: Welfare effects of different regimes
    creators:

    1 results

    1. Bye, Brita
    year:
    2001
    publisher:
    Statistisk sentralbyrå
    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_2016071108217_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/91298d0e0fcccd232841b80fcabe0a89
  5. id:
    7d16066f9dc7d31ebeeaeba8b3de881b
    urn:
    URN:NBN:no-nb_digibok_2009091501069
    title:
    Welfare effects of trade liberalization in distorted economies: A dynamic general equilibrium assessment for Norway
    creators:

    2 results

    1. Fæhn, Taran
    2. Holmøy, Erling
    year:
    2001
    publisher:
    Statistisk sentralbyrå
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. eng
    county:
    not reported by source
    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_digibok_2009091501069_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/7d16066f9dc7d31ebeeaeba8b3de881b
  6. id:
    b2fd95d905511804ba9d6749e2ad0b67
    urn:
    URN:NBN:no-nb_digibok_2009091700004
    title:
    Do higher wages reflect higher productivity? : education, gender and experience premiums in a matched plant-worker data set
    creators:

    2 results

    1. Hægeland, Torbjørn
    2. Klette, Tor Jakob
    year:
    2000
    publisher:
    Statistisk sentralbyrå
    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_2009091700004_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/b2fd95d905511804ba9d6749e2ad0b67
  7. id:
    f7b0a2ba26fb29a803cd3adb619bd88b
    urn:
    URN:NBN:no-nb_digitidsskrift_2025070980020_003
    title:
    Cytotherapy (trykt utg.) : the official journal of the International Society for Cellular Theraphy. 2005 Vol. 7 Nr. 3
    creators:

    1 results

    1. International Society for Cellular Therapy
    year:
    2005
    publisher:
    Taylor & Francis
    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_2025070980020_003_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/f7b0a2ba26fb29a803cd3adb619bd88b
  8. id:
    d0dcf1ad835cd6ed8ec4a201673da8d0
    urn:
    URN:NBN:no-nb_digitidsskrift_2025070980020_005
    title:
    Cytotherapy (trykt utg.) : the official journal of the International Society for Cellular Theraphy. 2005 Vol. 7 Nr. 5
    creators:

    1 results

    1. International Society for Cellular Therapy
    year:
    2005
    publisher:
    Taylor & Francis
    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_2025070980020_005_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/d0dcf1ad835cd6ed8ec4a201673da8d0
  9. id:
    6728639e5601da1d059bce15528fa627
    urn:
    URN:NBN:no-nb_digitidsskrift_2025070980031_001
    title:
    Cytotherapy (trykt utg.) : the official journal of the International Society for Cellular Theraphy. 2007 Vol. 9 Nr. 1
    creators:

    1 results

    1. International Society for Cellular Therapy
    year:
    2007
    publisher:
    Taylor & Francis
    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_2025070980031_001_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/6728639e5601da1d059bce15528fa627
  10. id:
    83f05d4156e6ca9542078e61e9b105c5
    urn:
    URN:NBN:no-nb_digitidsskrift_2025070980029_008
    title:
    Cytotherapy (trykt utg.) : the official journal of the International Society for Cellular Theraphy. 2010 Vol. 12 Nr. 7
    creators:

    1 results

    1. International Society for Cellular Therapy
    year:
    2010
    publisher:
    Taylor & Francis
    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_2025070980029_008_0001/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/83f05d4156e6ca9542078e61e9b105c5
limit:
25
offset:
0
returned:
10
has_more_results:
yes
truncated:
yes
next_offset:
10
Will you use the result in generated code?

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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

  1. Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
  2. Check types, units, limits and ID formats in the parameter table.
  3. 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.