# Levam OEM API

> Levam OEM API — REST API for original (OEM) auto parts catalogs: VIN and parameter-based vehicle selection, unit diagrams, part applicability, order validation. Base URL: https://api.levam.net, authentication via the api_key query parameter.

## Docs

- [Levam OEM API — Overview](https://levam.net/docs/en/index.md)
- [Authentication](https://levam.net/docs/en/authentication.md)
- [Pricing and billing](https://levam.net/docs/en/billing.md)
- [Catalogs and models](https://levam.net/docs/en/catalogs.md)
- [Vehicle selection by parameters](https://levam.net/docs/en/vehicle-selection.md)
- [VIN search](https://levam.net/docs/en/vin-search.md)
- [Unit groups and parts](https://levam.net/docs/en/parts.md)
- [Part applicability](https://levam.net/docs/en/applicability.md)
- [Order check](https://levam.net/docs/en/order-check.md)
- [Maintenance parts](https://levam.net/docs/en/maintenance.md)
- [Error codes](https://levam.net/docs/en/errors.md)

Full documentation in a single file: https://levam.net/llms-full.txt