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 2026-09-25T02:30:05Z in 1.034 seconds.

total:
2653224
page:
0
size:
10
items:

10 results

  1. id:
    cd13b1b6abe51456830a28e27ad0463b
    urn:
    URN:NBN:no-nb_digibok_2021072248743
    title:
    Ekstraordinære tider : festskrift til Per Ole Johansen
    creators:

    3 results

    1. Korsell, Lars Emanuelsson
    2. Christophersen, Jan Georg
    3. Larsson, Paul
    year:
    2015
    publisher:
    Novus forl.
    media_types:

    1 results

    1. bøker
    languages:

    5 results

    1. eng
    2. nob
    3. mul
    4. nno
    5. swe
    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_2021072248743_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/cd13b1b6abe51456830a28e27ad0463b
  2. id:
    65aaaf964d2443aa44e9f68c42dda4be
    urn:
    URN:NBN:no-nb_digibok_2011042808095
    title:
    Ernst Magne Johansen : et kunstner portrett
    creators:

    2 results

    1. Møller, Arvid
    2. Johansen, Ernst Magne
    year:
    2003
    publisher:
    [E.M. Johansen og Grizel Blair]
    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_2011042808095_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/65aaaf964d2443aa44e9f68c42dda4be
  3. id:
    9a495e219dbf1bf9198a2d7d5e03f13a
    urn:
    URN:NBN:no-nb_digibok_2022010348031
    title:
    Anetavle Rolf A. og Knut H. Johansen
    creators:

    1 results

    1. Johansen, Knut H.
    year:
    1966
    publisher:
    Eget forlag
    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_2022010348031_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/9a495e219dbf1bf9198a2d7d5e03f13a
  4. id:
    cc42cb88b87068d2407fdbe26454ccc7
    urn:
    URN:NBN:no-nb_digibok_2008052001007
    title:
    Lars Tvinde
    creators:

    1 results

    1. Dalgard, Olav
    year:
    1966
    publisher:
    Noregs boklag
    media_types:

    1 results

    1. bøker
    languages:

    1 results

    1. nno
    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_2008052001007_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/cc42cb88b87068d2407fdbe26454ccc7
  5. id:
    48a78989cc59dc35b53ebd6af9433225
    urn:
    URN:NBN:no-nb_digibok_2014042407096
    title:
    Arnstein Johansen : et liv etter noter
    creators:

    1 results

    1. Johansen, Mona Julie
    year:
    2010
    publisher:
    Norild forl.
    media_types:

    1 results

    1. bøker
    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_digibok_2014042407096_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/48a78989cc59dc35b53ebd6af9433225
  6. id:
    e5ee85309ae5085a83670ba5344c8beb
    urn:
    URN:NBN:no-nb_digibok_2011032808003
    title:
    Bjørn Johansen in memoriam
    creators:

    1 results

    1. Johansen, Bjørn
    year:
    2004
    publisher:
    Norsk jazzforl.
    media_types:

    1 results

    1. noter
    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_digibok_2011032808003_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/e5ee85309ae5085a83670ba5344c8beb
  7. id:
    8c5c462923a433bdc6a63704572186d0
    urn:
    URN:NBN:no-nb_digibok_2008020704043
    title:
    O. Johansen trevarefabrikk : fra snekkerverksted til moderne industri : 1904-1994
    creators:

    2 results

    1. Johansen, Ove
    2. O. Johansen trevarefabrikk
    year:
    1994
    publisher:
    Fabrikken
    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_2008020704043_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/8c5c462923a433bdc6a63704572186d0
  8. id:
    660c6c9e5326f19257869136d012db47
    urn:
    URN:NBN:no-nb_digibok_2011033003036
    title:
    Lars Tiller i sentrum : fra Bjarne Ness til Gruppe 5
    creators:

    2 results

    1. Gjelsvik, Magni Moksnes
    2. Tiller, Lars
    year:
    2003
    publisher:
    NT-forl.
    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_2011033003036_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/660c6c9e5326f19257869136d012db47
  9. id:
    fb63b9b5502a988785f11a226983e964
    urn:
    URN:NBN:no-nb_digibok_2022101748030
    title:
    Lars Kjemphol
    creators:

    8 results

    1. Kjemphol, Lars
    2. Cripps, Peter
    3. Lars Kjemphol (utstilling) Ålesund 2022
    4. Halstensen, Ruth Hege
    5. Jugendstilsenteret & KUBE
    6. Holen, Benedikte
    7. Oppedal, Stig
    8. Otterholm, Solfrid
    year:
    2022
    publisher:
    Jugendstilsenteret og KUBE
    media_types:

    1 results

    1. bøker
    languages:

    3 results

    1. eng
    2. nob
    3. mul
    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_2022101748030_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/fb63b9b5502a988785f11a226983e964
  10. id:
    e4cc51671a7902ac76bb487d6d939a9b
    urn:
    URN:NBN:no-nb_digibok_2020072448554
    title:
    Ætten Lars Larsen - Sætra i Lund kommune = : The family of Lars Larsen - Sætra in Lund Municipality : 1774-2019
    creators:

    3 results

    1. Aga, Lasse Gabriel
    2. Surdal, Einar Johan
    3. Foreningen ætten Lars Larsen - Sætra i Lund
    year:
    2019
    publisher:
    Foreningen ætten Lars Larsen, Sætra i Lund kommune
    media_types:

    1 results

    1. bøker
    languages:

    2 results

    1. eng
    2. 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_digibok_2020072448554_C1/full/0,128/0/native.jpg
    viewer_url:
    https://www.nb.no/items/e4cc51671a7902ac76bb487d6d939a9b
limit:
25
offset:
0
returned:
10
has_more_results:
yes
truncated:
yes
next_offset:
10
Will you use the result in generated code?

Open the same result as JSON

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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.