ELI API

The European Legislation Identifier (ELI) is a system to make legislation available online in a standardised format, so that it can be accessed, exchanged and reused across borders.

ELI is based on a voluntary agreement between the EU countries. It includes technical specifications on:

web identifiers (URIs) for legal information
metadata specifying how to describe legal information
a specific language for exchanging legislation in machine-readable formats

Useful links:

API documentation in Swagger
API definition in OpenAPI format
API entry point

More information in the polish version of the documentation.