session_state — Session State

Location: payload · Vendor: Keycloak

A legacy Keycloak session identifier predating the standard OIDC sid claim, which newer Keycloak versions emit alongside it. Prefer sid in new code; this claim is kept mainly for backward compatibility with older client libraries.

Defined in Keycloak server administration guide.

Decode a JWT and inspect its session_state claim in the TokenPrism debugger — free, entirely in your browser.