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 2026-09-11T21:57:37Z in 0.141 seconds.

total_count:

hits:

6 results

id:
2022-970331
buyer:
1 results
1. id:
  ec04201b5d47686f31761d8517b5c2fa
  organization_id:
  820 710 592
  name:
  Lillestrøm Kommune
heading:
Etablering av fortau - Parkalleen i Lillestrøm
description:
Parkalléen sentralt i Lillestrøm skal utvides med et fortau mellom Grensegata og Ole Vigs gate. Den aktuelle strekningen ligger like vest for Volla skole og vil være et viktig bidrag for å trygge skolevegen på denne strekningen. Fortauet blir liggende på sørsiden av vegen og blir 2,5 meter bredt. I tillegg blir det en liten grøft på nordsiden av vegen. Strekningen er ca 70 meter lang. Se konkurransegrunnlaget for nærmere informasjon. Oppdragsgiver Lillestrøm kommune, heretter kalt oppdragsgiver, innbyr til åpen tilbudskonkurransen vedrørende Etablering av fortau - Parkalleen i Lillestrøm For ytterligere informasjon om Lillestrøm kommune: http://www.lillestrom.kommune.no/ Administrativ kontaktperson for anskaffelsen er Kari Måseide Sørlie. Det skal ikke være kontakt med andre ansatte hos oppdragsgiver om denne anskaffelsen.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2022-08-26T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2022-08-26
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-346353
buyer:
1 results
1. id:
  ec04201b5d47686f31761d8517b5c2fa
  organization_id:
  820 710 592
  name:
  Lillestrøm Kommune
heading:
Herman Wessels vei
description:
Kommunen skal i dette prosjektet skifte ut vannledninger i grått støpejern og separering av avløpsnettet i Herman Wessels vei på Strømmen
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:
2021-03-24T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2021-03-24
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-349225
buyer:
1 results
1. id:
  f034d06ed2937b408802dc2ba3e006ce
  organization_id:
  964 948 798
  name:
  Ås kommune
heading:
Fortau i Grimsrudveien
description:
Grimsrudveien i Ås kommune: Etablering av fortau med grunn-, grave- og sprengningsarbeider, gangfelt, veibelysning, trekkerør til fiber, 2 stk. trekkekummer med lokk, sluk, skilt og oppmerking. Fjerning av eksisterende belysning og oppsett av gjerde ved høye fjellskjæringer.
location_id:
No results.
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:
2021-01-08T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2021-01-08
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2022-960054
buyer:
1 results
1. id:
  3b72c6f21b59b3b79d655c2ded9b09e1
  organization_id:
  940100925
  name:
  Ringerike Kommune
heading:
Vintervedlikehold Rode 34 Tyristrand - Nakkerud
description:
Ringerike Kommune skal inngå avtale på maskinelt vintervedlikehold i form av brøyting og strøing på brøyterode 34 Tyristrand - Nakkerud. Formålet med denne anskaffelsen er å holde kommunens kommunale veier fremkommelig og trygge i vinterhalvåret. Leverandør må ha egnet redskap tilpasset oppdragene på de forskjellige rodene. Antall brøytinger og strøinger vil variere hver vintersesong avhengig av nedbør og temperatur.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2022-09-22T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2022-09-22
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2023-662794
buyer:
1 results
1. id:
  056a6b0536b69062b8ba6d1c9739d063
  organization_id:
  964 949 581
  name:
  Enebakk Kommune
heading:
Rammeavtale maskinentreprenør
description:
Rammeavtale på gravetjenester for kommunes graveprosjekter i Enebakk kommune. Konkurransen avvikles som parallelle rammeavtaler med flere leverandører. Avtalen vil inngås som parallelle rammeavtaler med 2 avropsmetoder:
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2023-06-05T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2023-06-05
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2018-352208
buyer:
1 results
1. id:
  f60bbd43b55af367c0209e0d3748858f
  organization_id:
  913 716 922
  name:
  VIVA IKS
heading:
Vinterdrift
description:
Anskaffelsens formål og omfang Konkurransen gjelder tjenestekontrakt om levering av snøbrøyting, strøing og bortkjøring av snø fra veier, gater, torg og plasser med kommunalt driftsansvar. Leverandøren må inneha nødvendig faglig, teknisk og økonomisk grunnlag for gjennomføring av oppgavene. Anskaffelsens verdi anslåes til: NOK 12.000.000,- eks mva pr år. Volumet er estimert ut i fra statistikk og regnskapstall for tidligere år, samt fremtidige budsjett. Volumet må derfor betraktes som anslag og er ikke bindende. For nærmere informasjon viser vi til del 2, kravspesifikasjon.
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:
2018-08-02T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2018-08-02
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

truncated:

Show all fields in HTML

total_count:

hits:

6 results

id:
2022-970331
buyer:
1 results
1. id:
  ec04201b5d47686f31761d8517b5c2fa
  organization_id:
  820 710 592
  name:
  Lillestrøm Kommune
heading:
Etablering av fortau - Parkalleen i Lillestrøm
description:
Parkalléen sentralt i Lillestrøm skal utvides med et fortau mellom Grensegata og Ole Vigs gate. Den aktuelle strekningen ligger like vest for Volla skole og vil være et viktig bidrag for å trygge skolevegen på denne strekningen. Fortauet blir liggende på sørsiden av vegen og blir 2,5 meter bredt. I tillegg blir det en liten grøft på nordsiden av vegen. Strekningen er ca 70 meter lang. Se konkurransegrunnlaget for nærmere informasjon. Oppdragsgiver Lillestrøm kommune, heretter kalt oppdragsgiver, innbyr til åpen tilbudskonkurransen vedrørende Etablering av fortau - Parkalleen i Lillestrøm For ytterligere informasjon om Lillestrøm kommune: http://www.lillestrom.kommune.no/ Administrativ kontaktperson for anskaffelsen er Kari Måseide Sørlie. Det skal ikke være kontakt med andre ansatte hos oppdragsgiver om denne anskaffelsen.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2022-08-26T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2022-08-26
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-346353
buyer:
1 results
1. id:
  ec04201b5d47686f31761d8517b5c2fa
  organization_id:
  820 710 592
  name:
  Lillestrøm Kommune
heading:
Herman Wessels vei
description:
Kommunen skal i dette prosjektet skifte ut vannledninger i grått støpejern og separering av avløpsnettet i Herman Wessels vei på Strømmen
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:
2021-03-24T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2021-03-24
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2021-349225
buyer:
1 results
1. id:
  f034d06ed2937b408802dc2ba3e006ce
  organization_id:
  964 948 798
  name:
  Ås kommune
heading:
Fortau i Grimsrudveien
description:
Grimsrudveien i Ås kommune: Etablering av fortau med grunn-, grave- og sprengningsarbeider, gangfelt, veibelysning, trekkerør til fiber, 2 stk. trekkekummer med lokk, sluk, skilt og oppmerking. Fjerning av eksisterende belysning og oppsett av gjerde ved høye fjellskjæringer.
location_id:
No results.
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:
2021-01-08T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2021-01-08
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2022-960054
buyer:
1 results
1. id:
  3b72c6f21b59b3b79d655c2ded9b09e1
  organization_id:
  940100925
  name:
  Ringerike Kommune
heading:
Vintervedlikehold Rode 34 Tyristrand - Nakkerud
description:
Ringerike Kommune skal inngå avtale på maskinelt vintervedlikehold i form av brøyting og strøing på brøyterode 34 Tyristrand - Nakkerud. Formålet med denne anskaffelsen er å holde kommunens kommunale veier fremkommelig og trygge i vinterhalvåret. Leverandør må ha egnet redskap tilpasset oppdragene på de forskjellige rodene. Antall brøytinger og strøinger vil variere hver vintersesong avhengig av nedbør og temperatur.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2022-09-22T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2022-09-22
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2023-662794
buyer:
1 results
1. id:
  056a6b0536b69062b8ba6d1c9739d063
  organization_id:
  964 949 581
  name:
  Enebakk Kommune
heading:
Rammeavtale maskinentreprenør
description:
Rammeavtale på gravetjenester for kommunes graveprosjekter i Enebakk kommune. Konkurransen avvikles som parallelle rammeavtaler med flere leverandører. Avtalen vil inngås som parallelle rammeavtaler med 2 avropsmetoder:
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
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:
2023-06-05T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2023-06-05
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2018-352208
buyer:
1 results
1. id:
  f60bbd43b55af367c0209e0d3748858f
  organization_id:
  913 716 922
  name:
  VIVA IKS
heading:
Vinterdrift
description:
Anskaffelsens formål og omfang Konkurransen gjelder tjenestekontrakt om levering av snøbrøyting, strøing og bortkjøring av snø fra veier, gater, torg og plasser med kommunalt driftsansvar. Leverandøren må inneha nødvendig faglig, teknisk og økonomisk grunnlag for gjennomføring av oppgavene. Anskaffelsens verdi anslåes til: NOK 12.000.000,- eks mva pr år. Volumet er estimert ut i fra statistikk og regnskapstall for tidligere år, samt fremtidige budsjett. Volumet må derfor betraktes som anslag og er ikke bindende. For nærmere informasjon viser vi til del 2, kravspesifikasjon.
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:
2018-08-02T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2018-08-02
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

truncated:

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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.