---
title: "Data validators for AI document data extraction"
canonical_url: "https://www.nutrient.io/guides/ai-document-processing/preconfigured-validators/"
md_url: "https://www.nutrient.io/guides/ai-document-processing/preconfigured-validators.md"
last_updated: "2026-06-08T15:36:24.871Z"
description: "AI Document Processing comes with a set of predefined data validators that help ensure the integrity of the extracted data from documents."
---

# Data extraction validators

AI Document Processing comes with a set of predefined data validators that help ensure the integrity of the extracted data from documents.

## Available validators

Here’s a list of currently available validators:

- `PostalAddressIntegrity` — Validates a postal address

- `IBANIntegrity` — Validates an IBAN number

- `CreditCardNumberIntegrity` — Validates a credit card number

- `VehicleIdentificationNumberIntegrity` — Validates a VIN

- `EmailIntegrity` — Validates an email address

- `URIIntegrity` — Validates a URI

- `VATIdIntegrity` — Validates a VAT number

- `PhoneNumberIntegrity` — Validates a phone number

- `CurrencyIntegrity` — Validates a currency

- `DateIntegrity` — Validates a date

- `NumberIntegrity` — Validates a general number

## What happens when validation fails?

In case of failed validation, the extracted value will be flagged and this will be reflected in the `ProcessorResult` object returned by the document processor.

The `FieldValidationState` will be `VerificationNeeded`, as opposed to `Valid`.

---

## Related pages

- [Concepts](/guides/ai-document-processing/concepts.md)
- [Document classification and data extraction](/guides/ai-document-processing/classify-documents.md)
- [Download AI Document Processing](/guides/ai-document-processing/downloads.md)
- [AI Document Processing (formerly XtractFlow)](/guides/ai-document-processing.md)
- [Developer guides](/guides/ai-document-processing/intro.md)
- [Build a classification / extraction template](/guides/ai-document-processing/custom-templates.md)
- [Example: Invoice recognition and data extraction](/guides/ai-document-processing/invoices.md)
- [Preconfigured classification and data extraction templates](/guides/ai-document-processing/preconfigured-templates.md)