Add SSO services

Author: darkdragon-001

README.md

@@ -372,6 +372,7 @@ _See also: [IT Asset Management]([Ralph](#it-asset-management))_
 ### Single Sign-On (SSO)
 
 - [KeyCloak](https://www.keycloak.org) - Open Source Identity and Access Management ([Source Code](https://github.com/keycloak/keycloak)) `Apache-2.0` `Java`
+- [Kratos](https://www.ory.sh/kratos/) - Next-gen identity server with Ory-hardened authentication, MFA, FIDO2, profile management, identity schemas, social sign in, registration, account recovery, and IoT auth. Golang, headless, API-only - without templating or theming headaches. ([QuickStart](https://www.ory.sh/kratos/docs/quickstart/), [Source Code](https://github.com/ory/kratos)) `Apache-2.0` `Golang`
 
 ## IT Asset Management