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Romanian CUI/CIF VAT Number Validator (ANAF/VIES)
x402
Romanian CUI/CIF VAT Number Validator (ANAF/VIES) is a paid API for AI agents from api.ibancheck.co.uk, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Validates a Romanian CUI/CIF company tax number using Modulo-11 checksum and performs a live ANAF or VIES EU registry lookup, with fallback to local format/demo-snapshot data if the live registry is unreachable.
Price / call$0.01
Success—
StatusUnknown
How this service works
Enterprise microservice and autonomous AI agent hub: ISO 13616 IBAN (#6), Romanian CUI Modulo-11 & EU VIES (#7), UBL 2.1 e-Factura XML (#4), and RFC 9562 UUIDv7 Idempotency (#18).
Output
Returns a validation result indicating whether the CUI/CIF passes the Romanian Modulo-11 checksum, along with live ANAF or VIES registry lookup data (company name, registration status, fiscal activity) if the registry is reachable, or fallback local format/demo-snapshot data if the live registry is unavailable.
Example use cases
Verify supplier before invoice payment
“Before we pay this invoice, can you check if the Romanian company with CUI 18547290 is validly registered with ANAF and fiscally active?”
EU VAT number compliance check
“We're onboarding a Romanian vendor — please verify their VAT number RO25896314 against VIES to make sure it's a legitimate registered EU VAT entity.”
Automated invoice validation pipeline
“As part of processing this batch of Romanian supplier invoices, validate the CUI 4266570 to confirm it passes the Modulo-11 check and matches an active ANAF record.”
Technical details
Endpoint
POSThttps://api.ibancheck.co.uk/api/valideaza-cui?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to validate a Romanian CUI/CIF company identifier with both local checksum verification and live ANAF/VIES registry confirmation. It is specifically designed for Romanian fiscal compliance workflows, supplier onboarding, invoice verification, and B2B due diligence involving Romanian entities. Prefer it over generic EU VAT validators when ANAF-specific registry data is required, and over manual lookups when you need programmatic, low-cost ($0.01) real-time validation with automatic fallback.
Side effects
- Live ANAF registry unreachable — falls back to local format/demo-snapshot data, which may not reflect current registration status
- Invalid CUI format — Modulo-11 checksum fails before registry lookup
- CUI not found in ANAF registry — company may not exist or may have been deregistered
- VIES registry timeout — EU VAT cross-check unavailable temporarily
- Input missing both cui and vatNumber — request rejected
- Malformed input string exceeding maxLength 32 characters
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cui | string | |
| vatNumber | string |
Tags
x402
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