/cejn/tenders/search

POST /api/cejn/tenders/search

Price: 10 credits

Search Montenegro's CeJN public procurement tenders by title, contracting authority name, id or tax number, status, procedure type, subject type and publication date, with the buyer, procedure, contract type, status and publication time of each tender.

How to use it

Pass a row id to cejn/tenders for lots, conditions, documents and phases, and to cejn/tenders/contracts for the contracts concluded under it. buyer_id opens the contracting authority in cejn/buyers.

Parameters

• access-token string required

Request body

• timeout integer — Max scrapping execution timeout (in seconds) (default: 300; min: 20; max: 1500)
• offset integer — Number of matching results to skip (default: 0; examples: 0, 5000; min: 0; max: 1000000)
• published_from string nullable — Earliest publication date, inclusive (examples: "2026-09-01")
• published_to string nullable — Latest publication date, inclusive (examples: "2026-09-10")
• count integer required — Max number of results (min: 1; max: 5000)
• buyer_name string nullable — Part of the contracting authority name (examples: "OPŠTINA")
• buyer_id string nullable — Contracting authority id (examples: "182")
• buyer_tax_number string nullable — Contracting authority tax number (PIB) (examples: "02816296")
• statuses array nullable — Tender statuses to include (one of: "published", "cancelled", "completed"; minItems: 1)
• procedure_type string nullable — Procurement procedure (one of: "small_procurement", "open", "restricted", "competitive_with_negotiation", "negotiation_without_publication", "innovation_partnership", "competitive_dialogue", "negotiation_with_publication", "framework_mini_call_off")
• subject_type string nullable — Subject of procurement (one of: "goods", "services", "works")

Response

• @type string (default: "CejnTenderSummary")
• id string required
• buyer_name string nullable
• buyer_id string nullable
• procedure_type string nullable
• contract_type string nullable
• status string nullable
• status_name string nullable
• created_at integer nullable
• published_at integer nullable
• url string nullable

Errors

• 422 — The request body did not validate Check the fields against this schema. A URN with the wrong prefix is the most common cause.
• 408 — The request ran past its time limit Raise `timeout` in the request body, up to the maximum this endpoint documents. Lowering `count` or turning off the `with_*` flags also helps, because less work finishes sooner.
• 412 — The entity was not found, or a precondition failed Retrying will not help: either the entity does not exist, or the input points at a different one.
• 429 — Too many requests: a rate limit or a usage window is exhausted When the response carries an X-Retry-After header, wait that many seconds and retry: the same number is in the body as `detail.retry_after`, and the limit clears once that window passes. The message in the body names the limit that was hit.
• 500 — Something broke on our side Retrying will not help. If it keeps happening, send us the X-Request-ID from the response headers.
• 529 — Rate limit reached, or the endpoint is overloaded Wait at least 30 seconds, then retry.

Response headers

• X-Error — Error message text (present only on error)
• X-Request-ID — Unique request identifier
• X-Execution-Time — Execution time in seconds
• X-Result-Count — How many records the body carries. 0 means an empty result, which is a normal answer and not by itself an error. A non-zero count can come back together with X-Error when the failure happened partway through — read this header and X-Error independently.
• X-Total-Available-Results — How many records exist for this query, when the endpoint can say. On a `dry_run` request this is the answer and the body is empty. It saturates: the endpoint's documented maximum means 'at least that many', any smaller number is exact.
• X-Warning — Present when the request body carried keys this endpoint does not document. They were ignored, so any filter you meant to apply through them did not apply. Check the spelling against this schema and retry.
• X-Retry-After — Seconds to wait before retrying. Present only on 429.