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.

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": "..."}
}

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 2026-08-03T02:48:46Z in 0.283 seconds.

total:

94086

page:

size:

items:

10 results

id:
79fd2de807b9a52d2ce6cddd6379b0be
urn:
URN:NBN:no-nb_digibok_2011121906007
title:
Sandarslekten Klaveness
creators:
1 results
1. Klaveness, Thv
year:
1951
publisher:
Cammermeyer
media_types:
1 results
1. bøker
languages:
1 results
1. nob
county:
Vestfold
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_2011121906007_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/79fd2de807b9a52d2ce6cddd6379b0be
id:
d86658a5709805f70c9a2280acd5a9bc
urn:
URN:NBN:no-nb_digibok_2011051604025
title:
Slegten Klaveness af Sandeherred i 300 aar
creators:
1 results
1. Finne-Grønn, S.H. (Stian Herlofsen)
year:
1902
publisher:
[s.n.]
media_types:
1 results
1. bøker
languages:
1 results
1. nob
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_2011051604025_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/d86658a5709805f70c9a2280acd5a9bc
id:
5e179f0feb4212ab1c35d968a6d1f25b
urn:
URN:NBN:no-nb_digibok_2015012208130
title:
Fredrik Ramm : en minnebok
creators:
2 results
1. Engelstad, Carl Fredrik
2. Ramm, Fredrik
year:
1946
publisher:
Land og kirke
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_2015012208130_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5e179f0feb4212ab1c35d968a6d1f25b
id:
5043a8870d14d4615df7c644f7165fd3
urn:
URN:NBN:no-nb_digiebok_94
title:
Rederiet A.F. Klaveness & Co. A/S : fra vekst til fall gjennom 200 år
creators:
1 results
1. Andersen, Otto H. Næsgård
year:
2011
publisher:
O.H. Næsgård Andersen
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_digiebok_94_0001/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5043a8870d14d4615df7c644f7165fd3
id:
0d706e84b735b52cb248717b44fa15e1
urn:
URN:NBN:no-nb_digibok_2014071808067
title:
Slektsbok etter Christian Olsen Mørk
creators:
1 results
1. Sveaas, Per Auen
year:
2005
publisher:
P.A. Sveaas
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:
bokhylla
viewability:
NONE
access_allowed_from:
NORWAY
thumbnail:
https://www.nb.no/services/image/resolver/URN:NBN:no-nb_digibok_2014071808067_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/0d706e84b735b52cb248717b44fa15e1
id:
3b0211e66edbabf66eddbeaf4b5bc003
urn:
URN:NBN:no-nb_digibok_2011070108113
title:
Christian Sinding
creators:
1 results
1. Vollestad, Per
year:
2005
publisher:
Solum
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_2011070108113_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/3b0211e66edbabf66eddbeaf4b5bc003
id:
a5c4550d5f021dcdeb3ba3e32fec0a70
urn:
URN:NBN:no-nb_digibok_2010111205015
title:
Professor Fredrik Petersen og hans samtid
creators:
1 results
1. Selmer, Ludvig
year:
1948
publisher:
Land og kirke
media_types:
1 results
1. bøker
languages:
1 results
1. nob
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_2010111205015_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/a5c4550d5f021dcdeb3ba3e32fec0a70
id:
44ab83ac8b37e4ae6ced017f00d1a3f3
urn:
URN:NBN:no-nb_digibok_2015070108085
title:
Christian Krohgs portretter
creators:
3 results
1. Thue, Oscar
2. Riksantikvaren
3. Krohg, Christian
year:
1971
publisher:
Gyldendal
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_2015070108085_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/44ab83ac8b37e4ae6ced017f00d1a3f3
id:
0b58ff4264a2c6b619bfed3633bb729f
urn:
not reported by source
title:
"Kjødets opstandelse"
creators:
1 results
1. Klaveness, Fredrik
year:
1916
publisher:
not reported by source
media_types:
1 results
1. artikler
languages:
1 results
1. nob
county:
not reported by source
digital:
no
public_domain:
no
license:
copyrighted
viewability:
NONE
access_allowed_from:
NB
thumbnail:
not reported by source
viewer_url:
https://www.nb.no/items/0b58ff4264a2c6b619bfed3633bb729f
id:
5988e0e27953e53768136b38bb6cf7a5
urn:
URN:NBN:no-nb_digibok_2013072306107
title:
Konsul Fredrik Høsts tegninger : Sandefjord i 1840-50 årene
creators:
3 results
1. Høst, Fredrik
2. Sørensen, Marianne
3. Sandefjordmuseene
year:
2007
publisher:
Sandefjordmuseene
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_2013072306107_C1/full/0,128/0/native.jpg
viewer_url:
https://www.nb.no/items/5988e0e27953e53768136b38bb6cf7a5

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

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.