To check the last user login in Ory Kratos, you can use the

/sessions/whoami

endpoint or the corresponding SDK method. This endpoint provides information about the current session, including the last authentication time. Here are a few ways to do this: 1. Using cURL: You can make a request to the

/sessions/whoami

endpoint using cURL:

bash    curl -H "Cookie: ory_kratos_session=..." \      "https://$<http://PROJECT_SLUG.projects.oryapis.com/sessions/whoami|PROJECT_SLUG.projects.oryapis.com/sessions/whoami>"

[Source: Kratos Session Management Overview](https://www.ory.sh/docs/kratos/session-management/overview#using-ory-session-cookie) 2. Using the Ory SDK in a React application: Here's an example of how to use the Ory SDK to check the session in a React component:

javascript    import { Configuration, FrontendApi, Session } from "@ory/client"    import { useEffect, useState } from "react"     const frontend = new FrontendApi(      new Configuration({        basePath: "<http://localhost:4000>", // Use your local Ory Tunnel URL        baseOptions: {          withCredentials: true,        },      }),    )     export function checkSession() {      const [session, setSession] = useState<Session>(undefined)       useEffect(() => {        frontend          .toSession()          .then(({ data: session }) => {            setSession(session)          })          .catch((error) => {            // The session could not be fetched            // This might occur if the current session has expired          })      }, [])       return session ? (        <table>          <tr>            <th>Session ID</th>            <th>Expires at</th>            <th>Authenticated at</th>          </tr>          <tr id={session.id}>            <td>{session.id}</td>            <td>{session.expires_at || ""}</td>            <td>{session.authenticated_at || ""}</td>          </tr>        </table>      ) : (        <div>Loading session data...</div>      )    }

[Source: Kratos Bring-your-own-ui Integration Basics](https://www.ory.sh/docs/kratos/bring-your-own-ui/custom-ui-basic-integration#session-checks) The

authenticated_at

field in the session response indicates when the user last logged in. Keep in mind that this information is only available for active sessions. If a user doesn't have an active session, you won't be able to retrieve their last login time using this method. For a more comprehensive history of user logins, you might need to implement additional logging or tracking mechanisms, as Ory Kratos doesn't provide built-in functionality to store and retrieve historical login data across multiple sessions.