## MedplumSourceInfraConfig.signingKeyId property
**Signature:**

```typescript
signingKeyId: ValueOrExternalSecret<string>;
```  
- [MedplumSourceInfraConfig.signingKeyId property](/content/docs/sdk/core.medplumsourceinfraconfig.signingkeyid#medplumsourceinfraconfigsigningkeyid-property/index.html)