search_doffin

Search Norwegian public procurement notices on Doffin.

Signature: search_doffin(query: string, optional, default ''; types: list of string (comma-separated), optional, default None; statuses: list of string (comma-separated), optional, default None; contract_nature: list of string (comma-separated), optional, default None; cpv_codes: list of string (comma-separated), optional, default None; locations: list of string (comma-separated), optional, default None; buyer: list of string (comma-separated), optional, default None; winner: list of string (comma-separated), optional, default None; date_from: string, optional, default None; date_to: string, optional, default None; sort_by: string, optional, default 'RELEVANCE'; page: integer, optional, default 1; hits_per_page: integer, optional, default 10; include_placeholders: yes/no, optional, default False; 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/doffin/search_doffin/?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace {query}, {types}, {statuses}, {contract_nature}, {cpv_codes}, {locations}, {buyer}, {winner}, {date_from}, {date_to}, {sort_by}, {page}, {hits_per_page}, {include_placeholders} 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/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0. Open this exact request as JSON.

Parameter	Requirement	JSON type	Description
`query`	optional	string	Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.
`types`	optional	union	Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.
`statuses`	optional	union	ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.
`contract_nature`	optional	union	WORKS, SERVICES and/or SUPPLIES.
`cpv_codes`	optional	union	8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.
`locations`	optional	union	NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().
`buyer`	optional	union	Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.
`winner`	optional	union	Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.
`date_from`	optional	union	Publication date lower bound, "YYYY-MM-DD".
`date_to`	optional	union	Publication date upper bound, "YYYY-MM-DD".
`sort_by`	optional	string	RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.
`page`	optional	integer	1-based page number.
`hits_per_page`	optional	integer	1-50 (default 10).
`include_placeholders`	optional	boolean	By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.
`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/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&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/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&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/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "doffin",
  "operation": "search_doffin",
  "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.

query Type: string. Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.

types Type: list of string (comma-separated). Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.

statuses Type: list of string (comma-separated). ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.

contract_nature Type: list of string (comma-separated). WORKS, SERVICES and/or SUPPLIES.

cpv_codes Type: list of string (comma-separated). 8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.

locations Type: list of string (comma-separated). NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().

buyer Type: list of string (comma-separated). Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.

winner Type: list of string (comma-separated). Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.

date_from Type: string. Publication date lower bound, "YYYY-MM-DD".

date_to Type: string. Publication date upper bound, "YYYY-MM-DD".

sort_by Type: string. RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.

page Type: integer. 1-based page number.

hits_per_page Type: integer. 1-50 (default 10).

include_placeholders Type: yes/no. By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.

Result

Source: Doffin and TED. Retrieved 2026-10-24T09:35:56Z in 0.165 seconds.

total_count:

hits:

8 results

id:
2026-116192
buyer:
1 results
1. id:
  be8086bf6395e347ff2844d878e78397
  organization_id:
  915070434
  name:
  Sporveien AS
heading:
Snøryddeutstyr
description:
Se konkurransegrunnlag for beskrivelse.
location_id:
1 results
1. NO081
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2026-10-16T08:03:54Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2026-10-19
placeOfPerformance:
- Oslo
procurementStrategicLabels:
No results.
id:
2023-644031
buyer:
1 results
1. id:
  77dba06e4a4d8eb903d55b6f3b090583
  organization_id:
  928956997
  name:
  Sandefjord Lufthavn AS
heading:
Rammeavtale om kjøp av vintervedlikeholds utstyr.
description:
Sandefjord Lufthavn AS vil inngå rammeavtale om kjøp av vintervedlikeholds utstyr. Rammeavtalen skal dekke koste-blåsemaskiner/sweeper, brøyteskjær med brøytefeste og deler. Rammeavtalens varighet er 5 år med opsjon på 3 år.
location_id:
3 results
1. NO094
2. NO093
3. NO091
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2023-06-02T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2023-06-02
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-301317
buyer:
1 results
1. id:
  a221d4a5a8a46c2412fff674fb58d4e1
  organization_id:
  971022264
  name:
  Norsk Polarinstitutt
heading:
Snøfres
description:
Norsk Polarinstitutt skal gå til innkjøp av en (1) stykk snøfreser klargjort for drift.
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-06-30T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-06-30
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-391686
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
Avinor AS_K-189951_Rammeavtale kjøp av selvgående snøfresere til lufthavn
description:
Rammeavtale kjøp av selvgående snøfresere til lufthavn
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-06-23T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-06-23
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-303871
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
K-189460 Rammeavtale om kjøp av brøytekjøretøy til lufthavner med autonome løsninger
description:
Rammeavtale om kjøp av brøytekjøretøy til lufthavner med autonome løsninger
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-04-07T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-04-07
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-382026
buyer:
1 results
1. id:
  c31bbc9000f0db041ea52856e7046224
  organization_id:
  944 588 132
  name:
  Alta kommune
heading:
Anskaffelse Snøfreser for hjullaster kommunalteknikk AK
description:
Alta kommune , avdeling kommunalteknikk skal anskaffe 1 stk Snøfreser for hjullaster.
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-11-19T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-11-19
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-304633
buyer:
1 results
1. id:
  24f5002b4816434bef14ce06b9b57b12
  organization_id:
  940101808
  name:
  Tromsø Kommune
heading:
Snøfres til Bydrift Tromsø kommune
description:
Tromsø kommune ønsker å kjøpe én stk snøfres (med egen motor, for festing på hjullaster).
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-03-11T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-03-11
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-382597
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
Avinor AS - K-189532 - Kjøp av kunststoff skjær, stålskjær, børstekassetter og ringbørster til vintervedlikehold på flyplass
description:
Kjøp av kunststoff skjær, stålskjær, børstekassetter og ringbørster til sommer-og-vintervedlikehold på flyplass
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-11-24T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-11-24
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

Show all fields in HTML

total_count:

hits:

8 results

id:
2026-116192
buyer:
1 results
1. id:
  be8086bf6395e347ff2844d878e78397
  organization_id:
  915070434
  name:
  Sporveien AS
heading:
Snøryddeutstyr
description:
Se konkurransegrunnlag for beskrivelse.
location_id:
1 results
1. NO081
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2026-10-16T08:03:54Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2026-10-19
placeOfPerformance:
- Oslo
procurementStrategicLabels:
No results.
id:
2023-644031
buyer:
1 results
1. id:
  77dba06e4a4d8eb903d55b6f3b090583
  organization_id:
  928956997
  name:
  Sandefjord Lufthavn AS
heading:
Rammeavtale om kjøp av vintervedlikeholds utstyr.
description:
Sandefjord Lufthavn AS vil inngå rammeavtale om kjøp av vintervedlikeholds utstyr. Rammeavtalen skal dekke koste-blåsemaskiner/sweeper, brøyteskjær med brøytefeste og deler. Rammeavtalens varighet er 5 år med opsjon på 3 år.
location_id:
3 results
1. NO094
2. NO093
3. NO091
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2023-06-02T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2023-06-02
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-301317
buyer:
1 results
1. id:
  a221d4a5a8a46c2412fff674fb58d4e1
  organization_id:
  971022264
  name:
  Norsk Polarinstitutt
heading:
Snøfres
description:
Norsk Polarinstitutt skal gå til innkjøp av en (1) stykk snøfreser klargjort for drift.
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-06-30T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-06-30
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-391686
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
Avinor AS_K-189951_Rammeavtale kjøp av selvgående snøfresere til lufthavn
description:
Rammeavtale kjøp av selvgående snøfresere til lufthavn
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-06-23T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-06-23
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-303871
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
K-189460 Rammeavtale om kjøp av brøytekjøretøy til lufthavner med autonome løsninger
description:
Rammeavtale om kjøp av brøytekjøretøy til lufthavner med autonome løsninger
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-04-07T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-04-07
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-382026
buyer:
1 results
1. id:
  c31bbc9000f0db041ea52856e7046224
  organization_id:
  944 588 132
  name:
  Alta kommune
heading:
Anskaffelse Snøfreser for hjullaster kommunalteknikk AK
description:
Alta kommune , avdeling kommunalteknikk skal anskaffe 1 stk Snøfreser for hjullaster.
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-11-19T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-11-19
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-304633
buyer:
1 results
1. id:
  24f5002b4816434bef14ce06b9b57b12
  organization_id:
  940101808
  name:
  Tromsø Kommune
heading:
Snøfres til Bydrift Tromsø kommune
description:
Tromsø kommune ønsker å kjøpe én stk snøfres (med egen motor, for festing på hjullaster).
location_id:
3 results
1. NO074
2. NO073
3. NO072
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-03-11T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-03-11
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2020-382597
buyer:
1 results
1. id:
  a17f0c4d9b21ae6f264d342bcf640d49
  organization_id:
  985 198 292
  name:
  AVINOR AS
heading:
Avinor AS - K-189532 - Kjøp av kunststoff skjær, stålskjær, børstekassetter og ringbørster til vintervedlikehold på flyplass
description:
Kjøp av kunststoff skjær, stålskjær, børstekassetter og ringbørster til sommer-og-vintervedlikehold på flyplass
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2020-11-24T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2020-11-24
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

Will you use the result in generated code?

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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_doffin 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

Follow the notice ID to the canonical page; use CPV and location codes to narrow broad free-text searches.

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.