# Probes

The SQL Assessment API provides different types of probes to get data for assessment. Data can be taken from the SQL Server dynamic management views and from the operating system, for example, from the Windows registry.

## In This Section

- [AzGraph](./AzGraphProbe.md)
- [AzMetadata](./AzMetadataProbe.md)
- [BasicPerformance](./BasicPerformance.md)
- [CMD](CMDShellProbes.md)
- [External](CLRProbes.md)
- [PowerShell](PowerShellProbes.md)
- [Registry](RegistryProbes.md)
- [T-SQL](TSQLProbes.md)
- [WMI](WMIProbes.md)