# dppvalidator

> Python library for validating Digital Product Passports (DPP) according to EU ESPR regulations and UNTP standards.

dppvalidator is the open-source compliance engine for EU Digital Product Passports. Starting 2027, every textile product sold in the EU must have a Digital Product Passport. This library ensures your DPP data is compliant before production.

## Core Features

- Seven-layer validation: schema, model, semantic, JSON-LD, vocabulary, plugin, and signature
- Built-in UNTP DPP 0.6.1 schema support
- JSON-LD export for W3C Verifiable Credentials
- Plugin system for custom validators
- CLI and Python API

## Installation

```
pip install dppvalidator
```

## Quick Example

```python
from dppvalidator.validators import ValidationEngine

engine = ValidationEngine()
result = engine.validate(dpp_data)

if result.valid:
    print("✓ Valid DPP")
else:
    for error in result.errors:
        print(f"✗ {error.code}: {error.message}")
```

## Links

- Docs: https://artiso-ai.github.io/dppvalidator/
- PyPI: https://pypi.org/project/dppvalidator/
- GitHub: https://github.com/artiso-ai/dppvalidator
- Extended context: https://artiso-ai.github.io/dppvalidator/llms-ctx.txt