verinum 0.2.0

High-performance validation and reference data library

verinum

High-performance validation and reference data library with a compiled Rust core, exposed to Python via PyO3.

• Identifier validation — IBAN, BIC, credit card, ISBN, ISSN, ISIN, LEI, EAN, EU VAT numbers
• Reference data — countries, subdivisions, currencies, languages, VAT rates
• Check digit algorithms — Luhn, Verhoeff, Damm, ISO 7064
• Offline-first — all validation and lookup works without network access
• Zero-allocation hot paths — is_valid() functions are standalone, allocation-free implementations in the Rust core

Installation

pip install verinum

Prebuilt wheels are provided for Linux (manylinux + musllinux, x86_64 and aarch64), macOS (Intel and Apple Silicon), and Windows (x64). On other platforms pip will build from the sdist, which requires a Rust toolchain.

Usage

import verinum

# Validators
verinum.iban.is_valid("GB82 WEST 1234 5698 7654 32")   # True
verinum.vat.validate("DE123456789")
# {'is_valid': True, 'compact': 'DE123456789', 'country': 'DE', ...}

verinum.credit_card.validate("4111111111111111")
# {'is_valid': True, 'brand': 'visa', ...}

# Reference data
verinum.countries.get(alpha2="DE")
verinum.currencies.get(code="EUR")
verinum.vat_rates.get("DE")

# Algorithms
verinum.algorithms.luhn_validate("4111111111111111")

# Client (optional wrapper)
from verinum import Client
v = Client()
v.iban.validate("GB82WEST12345698765432")

Validation semantics

• is_valid(input) — offline format/checksum validation. Fast path, zero allocations. Standalone implementation, not a wrapper around validate().
• validate(input) — offline structured validation with normalization, typed error codes, and validator-specific metadata.
• verify(input) — future live registry validation (scaffolded, raises NotImplementedError in v1).

Supported validators

Validator	Format	Checksum
IBAN	Country + check digits + BBAN	Mod 97-10
BIC/SWIFT	8 or 11 alphanumeric	Structural
Credit Card	12–19 digits	Luhn
ISBN	ISBN-10 / ISBN-13	Mod 11 / Mod 10
ISSN	8 digits	Mod 11
ISIN	12 alphanumeric	Luhn (letter expand)
LEI	20 alphanumeric	Mod 97-10
EAN	EAN-8 / EAN-13	Weighted checksum
EU VAT	28 country formats	Country-specific

Links

• Source and full documentation: https://github.com/yanivtoledano/verinum
• Issue tracker: https://github.com/yanivtoledano/verinum/issues

License

MIT OR Apache-2.0