Business v1 / Firme

Contact details

The company's contact details (phone, fax, e-invoicing, tax domicile, tax office) from ANAF.

GET

https://oneapi.ro/api/business/v1/firme/{cui}/contact

Path parameters

NameTypeDescriptionExample

cuirequired string The company tax identification number, without the RO prefix (e.g. 6719278).

Query parameters

This route accepts no query parameters.

How it behaves

The website, emails and phones the company publishes on its own site are at /firme/{cui}/web (Pro plan).
The company's public contact details, as they appear in the sources. Coverage varies — many companies have no published phone or e-mail.
⚠️ A company that is in the register but has no ANAF tax record answers 200 with data: null and meta.fara_date, NOT 404 — 15,785 cases out of 3,909,449 (0.4%). 404 is reserved for tax IDs that do not exist in the register. Until 30 Sep 2026 both returned the same 404, so a client could not tell a real 404 from "has no contact details".

What it is for

Autofilling phone and e-mail when creating a customer in a CRM.
Enriching a lead list with published contact details.
Checking that the contact details you hold match the public ones.

Response structure

All fields below live inside data.

FieldTypeDescription

cui integer The tax ID.

telefon string | null The phone number in the ANAF record.

fax string | null The fax number in the ANAF record.

e_factura boolean Enrolled in e-Invoicing.

domiciliu_fiscal string | null The fiscal domicile, in the form ANAF publishes.

organ_fiscal string | null The tax office the company belongs to.

Response examples

GEThttps://oneapi.ro/api/business/v1/firme/6719278/contact

{
    "data": {
        "cui": 6719278,
        "telefon": "0212246677",
        "fax": null,
        "e_factura": false,
        "domiciliu_fiscal": "MUNICIPIUL BUCUREŞTI, Sector 6 Mun. Bucureşti, Bld. Timişoara, nr. 26",
        "organ_fiscal": "Direcţia Generală de Administrare a Marilor Contribuabili"
    }
}

GEThttps://oneapi.ro/api/business/v1/firme/14399840/contact

{
    "data": {
        "cui": 14399840,
        "telefon": null,
        "fax": null,
        "e_factura": false,
        "domiciliu_fiscal": "MUNICIPIUL BUCUREŞTI, Sector 2 Mun. Bucureşti, Str. Gara Herăstrău, nr. 6",
        "organ_fiscal": "Direcţia Generală de Administrare a Marilor Contribuabili"
    }
}

GEThttps://oneapi.ro/api/business/v1/firme/2054341/contact

{
    "data": {
        "cui": 2054341,
        "telefon": "0233743401",
        "fax": "0233744490",
        "e_factura": false,
        "domiciliu_fiscal": "IAŞI, Mun. Iaşi, Aleea Strugurilor, nr. 98",
        "organ_fiscal": "Administraţia Judeţeană a Finanţelor Publice Iaşi"
    }
}

GEThttps://oneapi.ro/api/business/v1/firme/24890577/contact

{
    "data": {
        "cui": 24890577,
        "telefon": "0744397587",
        "fax": null,
        "e_factura": true,
        "domiciliu_fiscal": "HARGHITA, Mun. Gheorgheni, Str. Pompierilor, nr. 118",
        "organ_fiscal": "Unitatea Fiscală Municipală Gheorgheni"
    }
}

Error codes

Code	Slug	When it occurs
401	neautentificat	Token missing, invalid, expired or revoked.
403	feature_indisponibil	The current plan does not include the feature the route depends on.
404	negasit	The company with tax ID [{cui}] was not found in the Trade Register. "Exists, but has no contact details" is NOT a 404 — it is a 200 with `meta.fara_date`.
422	validare	The route takes no parameters apart from `lang`: any other parameter returns 422 instead of being ignored.
429	cota_depasita	The plan's monthly quota has been exceeded (see `Retry-After`).

All errors share the same shape. eroare.cod is stable and is the value you should branch on in code — not the text in mesaj, which may change.

{
    "eroare": {
        "cod": "validare",
        "mesaj": "The route takes no parameters apart from lang: any other parameter returns 422 instead of being ignored.",
        "detalii": {
            "cui": [
                "The value sent does not satisfy the parameter rule."
            ]
        }
    }
}