# Reference

- [API Reference](/2-1-0/reference/api-reference.md): Here you can find a list all endpoints available to use across the Connectware API.
- [Auth-Server API](/2-1-0/reference/api-reference/api-definition.md)
- [Services API](/2-1-0/reference/api-reference/api-definition-1.md)
- [Resources API](/2-1-0/reference/api-reference/api-definition-2.md)
- [System Status API](/2-1-0/reference/api-reference/api-definition-3.md)
- [Resource Status Tracking API](/2-1-0/reference/api-reference/api-definition-4.md)
- [Topic Explorer API](/2-1-0/reference/api-reference/api-definition-5.md)
- [Changelog](/2-1-0/reference/changelog.md): This page lists all relevant changes in regular version updates.