# REST API

- [Authentication](/rest-api/authentication.md)
- [Apps](/rest-api/application.md): Create and retrieve Projects is needed to get the ingestion key.
- [Platforms](/rest-api/platform.md)
- [Transactions](/rest-api/transactions.md): Access transactions metrics.
- [Segments](/rest-api/segments.md): Access Segments metrics
- [Analytics](/rest-api/analytics.md)