WSO2 Identity Server can mediate authentication requests between service providers and identity providers. At the same time, the Identity Server itself can act as a service provider and an identity provider. When it acts as an identity provider it is known as the resident identity provider. This basically converts the Identity Server into a federated hub.
The resident identity provider configuration is very relevant for you if you are a service provider and want to send an authentication request or a provisioning request to the Identity Server (say via SAML, OpenID, OpenID Connect, SCIM, and WS-Trust).
Resident identity provider configuration is a one time configuration for a given tenant. It basically shows you the Identity Server's metadata, like the endpoints. In addition to the metadata, you can configure this if you want to secure the WS-Trust endpoint with a security policy.
Follow the instructions below to configure a resident identity provider.