bank_statement

Bank statement

Bank account statement from any country: bank, holder, IBAN, period, balances and transactions.

Category: Payments and finance
Country: International
Extracted fields: 11 fields
Cost: 1 credit

bank_statementspecimen

Bank name
Account holder
Address
IBAN
Bic
Period start
Period end
Opening balance
Closing balance

What it checks

National identifiers. Official checksum or format of the number (NIF, CPF, CURP, RUT, SSN…).iban, bic
IBAN. ISO 13616 check digits and length per country.
Holder. Name, number or date of birth match what you expect.
Recency. Issued less than N days ago.

Extracted fields

Bank namebank_name
Account holderaccount_holder
Addressaddress
IBANiban
Bicbic
Period startperiod_start
Period endperiod_end
Opening balanceopening_balance
Closing balanceclosing_balance
Currencycurrency
Transactionstransactions

Sample request

curl https://api.constaia.com/v1/analyze \
  -H "Authorization: Bearer $CONSTAIA_API_KEY" \
  -F "file=@document.pdf" \
  -F 'options={
    "expect": "bank_statement",
    "checks": {
      "max_age_days": 90,
      "holder": {
        "full_name": "Carmen Especimen Ruiz"
      }
    },
    "storage": "none"
  }'

Sample response

Fictitious data. Shortened response.

200 OK · application/json

{
  "id": "an_01J9Z3K8QW4T6Y2B7N5M1R0PXC",
  "object": "analysis",
  "status": "completed",
  "livemode": false,
  "document": {
    "type": "bank_statement",
    "label": "Bank statement",
    "confidence": 0.97
  },
  "verdict": {
    "expected": [
      "bank_statement"
    ],
    "match": true,
    "status": "valid",
    "reasons": [
      {
        "code": "type_match",
        "severity": "info",
        "message": "The document is: Bank statement."
      }
    ]
  },
  "fields": {
    "bank_name": {
      "value": "BANCO ESPECIMEN",
      "confidence": 0.99,
      "validated": true
    },
    "account_holder": {
      "value": "JUAN ESPAÑOL ESPAÑOL",
      "confidence": 0.98,
      "validated": null
    },
    "iban": {
      "value": "ES9121000418450200051332",
      "confidence": 0.97,
      "validated": null
    },
    "bic": {
      "value": "CAIXESBBXXX",
      "confidence": 0.96,
      "validated": null
    },
    "period_start": {
      "value": "2026-08-01",
      "confidence": 0.99,
      "validated": null
    },
    "period_end": {
      "value": "2026-08-31",
      "confidence": 0.98,
      "validated": null
    },
    "opening_balance": {
      "value": 2450.1,
      "confidence": 0.97,
      "validated": null
    },
    "closing_balance": {
      "value": 3120.75,
      "confidence": 0.96,
      "validated": null
    },
    "currency": {
      "value": "EUR",
      "confidence": 0.99,
      "validated": null
    }
  },
  "checks": [
    {
      "code": "id_number",
      "passed": true,
      "message": "id_number"
    },
    {
      "code": "iban_checksum",
      "passed": true,
      "message": "iban_checksum"
    }
  ],
  "warnings": [],
  "storage": {
    "mode": "none",
    "file_deleted_at": "2026-09-29T10:00:02Z",
    "expires_at": null
  },
  "usage": {
    "credits": 1,
    "pages": 1
  }
}

FAQ

Does Constaia prove the document is authentic?

No. It checks the type, data consistency and your rules, and flags signals such as a possible edit or a screen photo. That does not prove authenticity.

Is a copy of the document kept?

No, unless you ask for it. With storage "none" (the default) the file is deleted when the analysis ends.

And for the record…

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