# Public procurement of a Latvian company

The Iepirkumu uzraudzības birojs publishes Latvian public-procurement notices as open data every day (e-forms since 25 October 2023). This route finds a company by its registration number, as a winner (subject, buyer, contract, value, dates, status) and as a buyer (notices issued) — published facts, never a score.

## What the route returns

Catalogue description, exactly as agents read it:

**Public-procurement record of a Latvian company from the IUB (Iepirkumu uzraudzības birojs) daily open-data notices (CC0, e-forms since 2023-10-25): contracts WON — buyer, subject, CPV, contract reference, value in EUR, conclusion and decision dates, contract status — and notices ISSUED as a buyer, newest first, with totals. Natural-person winners are never served. About 3% of Latvian winners are published without an identifier: zero is a non-conclusive absence. Facts, never a score.**

## Expected identifier

11-digit Latvian registration number.

> ⚠️ A wrongly formatted identifier in the **path** returns `400` and is **not billed** — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes. A **search** parameter, by contrast, is cleaned up: unsupported characters are stripped and the usable query is served.

## Extract from a genuinely paid response

Dated snapshot from 2026-09-17, truncated to one item per array. It is not live data. The full extract is served **free of charge** from [the samples surface](https://api.sirenic.eu/exemples/), and the schema from the OpenAPI document.

```
{
 "pays": "LV",
 "id_national": "40003242737",
 "attributions": [
  {
   "avis_id": "d5267a7f-3473-4ab0-8fc0-9272d7b9bb8a",
   "type_avis": "contract-execution",
   "forme": "execution",
   "forme_source": "execution",
   "publie_le": "2026-09-16",
   "objet": "Degvielas iegāde Aizkraukles novada pašvaldības iestādēm",
   "cpv": "09000000-3",
   "nature": null,
   "acheteur": {
    "regnr": "90000074812",
    "nom": "Aizkraukles novada pašvaldība",
    "type": "la-main"
   },
   "contrat": {
    "reference": "6.2/2024/64",
    "titre": "Līgums",
    "valeur_eur": 10061.17,
    "conclusion_le": "2024-05-02",
    "decision_le": null,
    "debut_le": null,
    "fin_le": "2026-01-01",
    "statut": null
   },
   "gagnant": {
    "nom_publie": "Akciju sabiedrība \"VIRŠI-A\"",
    "taille": null
   }
  }
 ],
 "nombre_attributions": 1,
 "valeur_totale_eur": 10061.17,
 "tronque_attributions": false,
 "aucune_attribution": false,
 "avis_emis": [],
 "nombre_avis_emis": 0,
 "tronque_avis_emis": false,
 "stock": {
  "depuis": "2023-10-25",
  "dernier_jour_collecte": "2026-09-16"
 }
}
```

## Price and billing

Price: **$0.02**. The authoritative amount is the one in the `402` quote returned by the route itself — not this text, which derives from the same grid but is still just a page.

An error response **cancels the payment**: a `400`, `404` or `503` is never billed. An upstream outage closes the route with a `503` rather than serving a degraded response.

## Calling the route

```
# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/eu/entreprise/LV/{regnr}/marches-publics

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/eu/entreprise/LV/{regnr}/marches-publics

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp
```

## What this route does not do

Partial coverage by construction: **about 3% of Latvian winners are published without an identifier** and the stock starts on 2023-10-25; zero never means “never won a contract”. Never a natural-person winner.

## Neighbouring routes

- `/v1/eu/entreprise/LV/{id}` — $0.01
- `/v1/eu/entreprise/LV/{regnr}/evenements` — $0.02
- `/v1/entreprise/{siren}/marches-publics-ue` — $0.02

## How you pay

Every route is paid **per call**, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a `402` quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is **in preparation**, and we will not announce a date until it is open. Write to [contact@sirenic.eu](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs) and we will let you know when it opens.

Paid responses are **Ed25519-signed**: you can later prove what was served to you, and when. The whole catalogue is free to read in the [OpenAPI document](https://api.sirenic.eu/openapi.json) and in [llms.txt](https://api.sirenic.eu/llms.txt).

**One call, end to end**

```
# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp
```

## Routes used and pricing

| Route | Price | Sample | What it returns |
| --- | --- | --- | --- |
| `/v1/eu/entreprise/LV/{regnr}/marches-publics` | $0.02 | [free sample](https://api.sirenic.eu/exemples/eu-entreprise-LV-regnr-marches-publics.json) | Public-procurement record of a Latvian company from the IUB (Iepirkumu uzraudzības birojs) daily open-data notices (CC0, e-forms since 2023-10-25): contracts WON — buyer, subject, CPV, contract reference, value in EUR, conclusion and decision dates, contract status — and notices ISSUED as a buyer, newest first, with totals. Natural-person winners are never served. About 3% of Latvian winners are published without an identifier: zero is a non-conclusive absence. Facts, never a score. |

> ⚠️ Contract end dates are estimates, computed from the notification date and the declared duration. This is not an official re-tendering calendar.

## Take it further

- [See a real response (free)](https://api.sirenic.eu/exemples/eu-entreprise-LV-regnr-marches-publics.json)
- [Get the quote for /v1/eu/entreprise/LV/{regnr}/marches-publics](https://api.sirenic.eu/v1/eu/entreprise/LV/{regnr}/marches-publics)
- [Get notified about euro packs](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs)

## Read next

- [Automating business verification (KYB)](https://api.sirenic.eu/en/use-cases/kyb-automated-business-verification-with-per-block)


Volume figures on this page were measured in our database on 2026-08-19. They are dated snapshots, not live counters.

---

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