diff --git a/codex-rs/app-server/README.md b/codex-rs/app-server/README.md
index dc02ff8c04..5778a56261 100644
--- a/codex-rs/app-server/README.md
+++ b/codex-rs/app-server/README.md
@@ -1775,6 +1775,10 @@ Codex supports these authentication modes. The current mode is surfaced in `acco
 - `account/login/start` — begin login (`apiKey`, `chatgpt`, `chatgptDeviceCode`).
 - `account/login/completed` (notify) — emitted when a login attempt finishes (success or error).
 - `account/login/cancel` — cancel a pending managed ChatGPT login by `loginId`.
+- `accountSession/add` — save the current managed ChatGPT auth session.
+- `accountSession/list` — list saved managed ChatGPT auth sessions and optionally refresh their workspace metadata.
+- `accountSession/switch` — make a saved ChatGPT auth session and workspace current.
+- `accountSession/logout` — revoke and remove one saved ChatGPT auth session.
 - `account/logout` — sign out; triggers `account/updated`.
 - `account/updated` (notify) — emitted whenever auth mode changes (`authMode`: `apikey`, `chatgpt`, or `null`) and includes the current ChatGPT `planType` when available.
 - `account/rateLimits/read` — fetch ChatGPT rate limits and an optional effective monthly credit limit; updates arrive via `account/rateLimits/updated` (notify).
@@ -1860,19 +1864,30 @@ Field notes:
 { "method": "account/login/completed", "params": { "loginId": "<uuid>", "success": false, "error": "…" } }
 ```
 
-### 6) Logout
+### 6) Save and switch ChatGPT account sessions
+
+Desktop clients can save the current managed ChatGPT auth payload after login, list saved sessions, and switch the active workspace. These methods return the full saved-session snapshot because the number of interactive account sessions is intentionally small.
 
 ```json
-{ "method": "account/logout", "id": 6 }
-{ "id": 6, "result": {} }
+{ "method": "accountSession/add", "id": 6, "params": { "switchToAddedAccount": true } }
+{ "method": "accountSession/list", "id": 7, "params": { "refreshWorkspaceMetadata": true } }
+{ "method": "accountSession/switch", "id": 8, "params": { "sessionId": "<uuid>", "accountId": "<workspace-id>" } }
+{ "method": "accountSession/logout", "id": 9, "params": { "sessionId": "<uuid>" } }
+```
+
+### 7) Logout
+
+```json
+{ "method": "account/logout", "id": 10 }
+{ "id": 10, "result": {} }
 { "method": "account/updated", "params": { "authMode": null, "planType": null } }
 ```
 
-### 7) Rate limits (ChatGPT)
+### 8) Rate limits (ChatGPT)
 
 ```json
-{ "method": "account/rateLimits/read", "id": 7 }
-{ "id": 7, "result": { "rateLimits": { "primary": { "usedPercent": 25, "windowDurationMins": 15, "resetsAt": 1730947200 }, "secondary": null, "rateLimitReachedType": null } } }
+{ "method": "account/rateLimits/read", "id": 11 }
+{ "id": 11, "result": { "rateLimits": { "primary": { "usedPercent": 25, "windowDurationMins": 15, "resetsAt": 1730947200 }, "secondary": null, "rateLimitReachedType": null } } }
 { "method": "account/rateLimits/updated", "params": { "rateLimits": { … } } }
 ```
 
diff --git a/codex-rs/app-server/src/account_sessions.rs b/codex-rs/app-server/src/account_sessions.rs
new file mode 100644
index 0000000000..0c17908781
--- /dev/null
+++ b/codex-rs/app-server/src/account_sessions.rs
@@ -0,0 +1,549 @@
+use base64::Engine;
+use chrono::Utc;
+use codex_app_server_protocol::AccountSession;
+use codex_app_server_protocol::AccountSessionWorkspace;
+use codex_app_server_protocol::AccountSessionWorkspaceKind;
+use codex_app_server_protocol::AccountSessionWorkspaceStatus;
+use codex_app_server_protocol::AccountSessionsResponse;
+use codex_backend_client::AccountEntry;
+use codex_backend_client::Client as BackendClient;
+use codex_config::types::AuthCredentialsStoreMode;
+use codex_login::AuthDotJson;
+use codex_login::CodexAuth;
+use codex_login::delete_account_session_auth;
+use codex_login::load_account_session_auth;
+use codex_login::load_auth_dot_json;
+use codex_login::logout;
+use codex_login::revoke_auth_tokens;
+use codex_login::save_account_session_auth;
+use codex_login::save_auth;
+use serde::Deserialize;
+use serde::Serialize;
+use std::fs::OpenOptions;
+use std::io::Write;
+#[cfg(unix)]
+use std::os::unix::fs::OpenOptionsExt;
+use std::path::Path;
+use std::path::PathBuf;
+use uuid::Uuid;
+
+const ACCOUNT_SESSIONS_FILE: &str = "account-sessions.json";
+
+pub(crate) struct AccountSessionsStore<'a> {
+    codex_home: &'a Path,
+    auth_credentials_store_mode: AuthCredentialsStoreMode,
+    chatgpt_base_url: &'a str,
+}
+
+#[derive(Default, Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct StoredAccountSessions {
+    active_session_id: Option<String>,
+    sessions: Vec<StoredAccountSession>,
+}
+
+#[derive(Deserialize, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct StoredAccountSession {
+    session_id: String,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    auth_json: Option<AuthDotJson>,
+    email: Option<String>,
+    user_id: Option<String>,
+    display_name: Option<String>,
+    image_url: Option<String>,
+    plan: Option<String>,
+    last_used_at: i64,
+    selected_workspace_account_id: Option<String>,
+    workspaces: Vec<AccountSessionWorkspace>,
+}
+
+#[derive(Default, Deserialize)]
+struct AccessTokenClaims {
+    #[serde(rename = "https://api.openai.com/profile", default)]
+    profile: AccessTokenProfileClaims,
+}
+
+#[derive(Default, Deserialize)]
+struct AccessTokenProfileClaims {
+    #[serde(default)]
+    email: Option<String>,
+    #[serde(default)]
+    image: Option<String>,
+    #[serde(default)]
+    name: Option<String>,
+    #[serde(default)]
+    picture: Option<String>,
+}
+
+impl<'a> AccountSessionsStore<'a> {
+    pub(crate) fn new(
+        codex_home: &'a Path,
+        auth_credentials_store_mode: AuthCredentialsStoreMode,
+        chatgpt_base_url: &'a str,
+    ) -> Self {
+        Self {
+            codex_home,
+            auth_credentials_store_mode,
+            chatgpt_base_url,
+        }
+    }
+
+    pub(crate) async fn add(
+        &self,
+        switch_to_added_account: bool,
+    ) -> std::io::Result<AccountSessionsResponse> {
+        let mut stored = self.load()?;
+        let mut auth_json = load_auth_dot_json(self.codex_home, self.auth_credentials_store_mode)?
+            .ok_or_else(|| std::io::Error::other("No active ChatGPT auth session to add"))?;
+        let mut session = Self::session_from_auth_json(&auth_json)
+            .ok_or_else(|| std::io::Error::other("No active ChatGPT auth session to add"))?;
+        self.refresh_workspace_metadata(&mut session, &mut auth_json)
+            .await;
+
+        let existing_index = stored.sessions.iter().position(|saved| {
+            session
+                .email
+                .as_ref()
+                .is_some_and(|email| saved.email.as_ref() == Some(email))
+                || session
+                    .user_id
+                    .as_ref()
+                    .is_some_and(|user_id| saved.user_id.as_ref() == Some(user_id))
+        });
+        if let Some(index) = existing_index {
+            session
+                .session_id
+                .clone_from(&stored.sessions[index].session_id);
+        }
+        let added_session_id = session.session_id.clone();
+        self.save_session_auth(&added_session_id, &auth_json)?;
+        if let Some(index) = existing_index {
+            stored.sessions[index] = session;
+        } else {
+            stored.sessions.push(session);
+        }
+
+        if switch_to_added_account || stored.active_session_id.is_none() {
+            stored.active_session_id = Some(added_session_id);
+            save_auth(
+                self.codex_home,
+                &auth_json,
+                self.auth_credentials_store_mode,
+            )?;
+        } else if let Some(active_session_id) = stored.active_session_id.as_deref() {
+            self.save_active_session_auth(active_session_id)?;
+        }
+
+        self.save(&stored)?;
+        Ok(Self::response(stored))
+    }
+
+    pub(crate) async fn list(
+        &self,
+        refresh_workspace_metadata: bool,
+    ) -> std::io::Result<AccountSessionsResponse> {
+        self.sync_active_auth()?;
+        let mut stored = self.load()?;
+        if refresh_workspace_metadata {
+            for session in &mut stored.sessions {
+                let Some(mut auth_json) = self.load_session_auth(&session.session_id)? else {
+                    continue;
+                };
+                self.refresh_workspace_metadata(session, &mut auth_json)
+                    .await;
+                self.save_session_auth(&session.session_id, &auth_json)?;
+            }
+            self.save(&stored)?;
+        }
+        Ok(Self::response(stored))
+    }
+
+    pub(crate) async fn logout(
+        &self,
+        session_id: &str,
+    ) -> std::io::Result<AccountSessionsResponse> {
+        self.sync_active_auth()?;
+        let mut stored = self.load()?;
+        let index = stored
+            .sessions
+            .iter()
+            .position(|session| session.session_id == session_id)
+            .ok_or_else(|| std::io::Error::other("Saved ChatGPT account session not found"))?;
+        let removed = stored.sessions.remove(index);
+        let removed_auth = self.load_session_auth(&removed.session_id)?;
+        if let Err(err) = revoke_auth_tokens(removed_auth.as_ref()).await {
+            tracing::warn!("failed to revoke saved account session during logout: {err}");
+        }
+        delete_account_session_auth(
+            self.codex_home,
+            &removed.session_id,
+            self.auth_credentials_store_mode,
+        )?;
+
+        if stored.active_session_id.as_deref() == Some(session_id) {
+            let newest = stored
+                .sessions
+                .iter()
+                .max_by_key(|session| session.last_used_at);
+            stored.active_session_id = newest.map(|session| session.session_id.clone());
+            match newest {
+                Some(session) => self.save_active_session_auth(&session.session_id)?,
+                None => {
+                    logout(self.codex_home, self.auth_credentials_store_mode)?;
+                }
+            }
+        }
+
+        self.save(&stored)?;
+        Ok(Self::response(stored))
+    }
+
+    pub(crate) fn switch(
+        &self,
+        session_id: &str,
+        account_id: &str,
+    ) -> std::io::Result<AccountSessionsResponse> {
+        self.sync_active_auth()?;
+        let mut stored = self.load()?;
+        let session = stored
+            .sessions
+            .iter_mut()
+            .find(|session| session.session_id == session_id)
+            .ok_or_else(|| std::io::Error::other("Saved ChatGPT account session not found"))?;
+        let mut auth_json = self
+            .load_session_auth(&session.session_id)?
+            .ok_or_else(|| std::io::Error::other("Saved ChatGPT account session has no tokens"))?;
+        let tokens = auth_json
+            .tokens
+            .as_mut()
+            .ok_or_else(|| std::io::Error::other("Saved ChatGPT account session has no tokens"))?;
+        tokens.account_id = Some(account_id.to_string());
+        session.selected_workspace_account_id = Some(account_id.to_string());
+        session.last_used_at = Utc::now().timestamp();
+        stored.active_session_id = Some(session_id.to_string());
+        self.save_session_auth(session_id, &auth_json)?;
+        save_auth(
+            self.codex_home,
+            &auth_json,
+            self.auth_credentials_store_mode,
+        )?;
+        self.save(&stored)?;
+        Ok(Self::response(stored))
+    }
+
+    pub(crate) fn has_sessions(&self) -> std::io::Result<bool> {
+        Ok(self
+            .read()?
+            .is_some_and(|stored| !stored.sessions.is_empty()))
+    }
+
+    pub(crate) fn sync_active_auth(&self) -> std::io::Result<()> {
+        let Some(mut stored) = self.read()? else {
+            return Ok(());
+        };
+        if self.migrate_legacy_auth(&mut stored)? {
+            self.save(&stored)?;
+        }
+        let Some(active_session_id) = stored.active_session_id.as_ref() else {
+            return Ok(());
+        };
+        let Some(auth_json) =
+            load_auth_dot_json(self.codex_home, self.auth_credentials_store_mode)?
+        else {
+            return Ok(());
+        };
+        let Some(session) = stored
+            .sessions
+            .iter_mut()
+            .find(|session| &session.session_id == active_session_id)
+        else {
+            return Ok(());
+        };
+        if !Self::same_identity(session, &auth_json) {
+            return Ok(());
+        }
+
+        let saved_auth_json = self.load_session_auth(&session.session_id)?;
+        let selected_workspace_account_id = auth_json
+            .tokens
+            .as_ref()
+            .and_then(|tokens| tokens.account_id.clone());
+        if saved_auth_json.as_ref() == Some(&auth_json)
+            && (selected_workspace_account_id.is_none()
+                || session.selected_workspace_account_id == selected_workspace_account_id)
+        {
+            return Ok(());
+        }
+
+        self.save_session_auth(&session.session_id, &auth_json)?;
+        if selected_workspace_account_id.is_some() {
+            session.selected_workspace_account_id = selected_workspace_account_id;
+        }
+        self.save(&stored)
+    }
+
+    pub(crate) async fn revoke_all_and_clear(&self) -> std::io::Result<()> {
+        let Some(mut stored) = self.read()? else {
+            return self.clear();
+        };
+        self.migrate_legacy_auth(&mut stored)?;
+        for session in stored.sessions {
+            let auth_json = self.load_session_auth(&session.session_id)?;
+            if let Err(err) = revoke_auth_tokens(auth_json.as_ref()).await {
+                tracing::warn!("failed to revoke saved account session during logout: {err}");
+            }
+            delete_account_session_auth(
+                self.codex_home,
+                &session.session_id,
+                self.auth_credentials_store_mode,
+            )?;
+        }
+        self.clear()
+    }
+
+    fn load(&self) -> std::io::Result<StoredAccountSessions> {
+        match self.read()? {
+            Some(mut stored) => {
+                if self.migrate_legacy_auth(&mut stored)? {
+                    self.save(&stored)?;
+                }
+                Ok(stored)
+            }
+            None => {
+                let auth_json =
+                    load_auth_dot_json(self.codex_home, self.auth_credentials_store_mode)?;
+                let Some(auth_json) = auth_json else {
+                    return Ok(StoredAccountSessions::default());
+                };
+                let Some(session) = Self::session_from_auth_json(&auth_json) else {
+                    return Ok(StoredAccountSessions::default());
+                };
+                self.save_session_auth(&session.session_id, &auth_json)?;
+                let stored = StoredAccountSessions {
+                    active_session_id: Some(session.session_id.clone()),
+                    sessions: vec![session],
+                };
+                self.save(&stored)?;
+                Ok(stored)
+            }
+        }
+    }
+
+    fn migrate_legacy_auth(&self, stored: &mut StoredAccountSessions) -> std::io::Result<bool> {
+        let mut migrated = false;
+        for session in &mut stored.sessions {
+            if let Some(auth_json) = session.auth_json.take() {
+                self.save_session_auth(&session.session_id, &auth_json)?;
+                migrated = true;
+            }
+        }
+        Ok(migrated)
+    }
+
+    fn load_session_auth(&self, session_id: &str) -> std::io::Result<Option<AuthDotJson>> {
+        load_account_session_auth(
+            self.codex_home,
+            session_id,
+            self.auth_credentials_store_mode,
+        )
+    }
+
+    fn save_session_auth(&self, session_id: &str, auth_json: &AuthDotJson) -> std::io::Result<()> {
+        save_account_session_auth(
+            self.codex_home,
+            session_id,
+            auth_json,
+            self.auth_credentials_store_mode,
+        )
+    }
+
+    fn save_active_session_auth(&self, session_id: &str) -> std::io::Result<()> {
+        let auth_json = self
+            .load_session_auth(session_id)?
+            .ok_or_else(|| std::io::Error::other("Saved ChatGPT account session has no tokens"))?;
+        save_auth(
+            self.codex_home,
+            &auth_json,
+            self.auth_credentials_store_mode,
+        )
+    }
+
+    fn clear(&self) -> std::io::Result<()> {
+        match std::fs::remove_file(self.path()) {
+            Ok(()) => Ok(()),
+            Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(()),
+            Err(err) => Err(err),
+        }
+    }
+
+    fn read(&self) -> std::io::Result<Option<StoredAccountSessions>> {
+        match std::fs::read_to_string(self.path()) {
+            Ok(payload) => serde_json::from_str(&payload)
+                .map(Some)
+                .map_err(std::io::Error::other),
+            Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(None),
+            Err(err) => Err(err),
+        }
+    }
+
+    fn save(&self, sessions: &StoredAccountSessions) -> std::io::Result<()> {
+        let path = self.path();
+        if let Some(parent) = path.parent() {
+            std::fs::create_dir_all(parent)?;
+        }
+        let mut options = OpenOptions::new();
+        options.truncate(true).write(true).create(true);
+        #[cfg(unix)]
+        {
+            options.mode(0o600);
+        }
+        let mut file = options.open(path)?;
+        file.write_all(serde_json::to_string_pretty(sessions)?.as_bytes())?;
+        file.flush()
+    }
+
+    async fn refresh_workspace_metadata(
+        &self,
+        session: &mut StoredAccountSession,
+        auth_json: &mut AuthDotJson,
+    ) {
+        let Ok(auth) = CodexAuth::from_auth_dot_json(
+            self.codex_home,
+            auth_json.clone(),
+            self.auth_credentials_store_mode,
+            Some(self.chatgpt_base_url),
+        )
+        .await
+        else {
+            return;
+        };
+        let Ok(client) = BackendClient::from_auth(self.chatgpt_base_url, &auth) else {
+            return;
+        };
+        let Ok(accounts) = client.get_accounts_check().await else {
+            return;
+        };
+        session.selected_workspace_account_id = session
+            .selected_workspace_account_id
+            .clone()
+            .or(accounts.default_account_id)
+            .or_else(|| accounts.account_ordering.first().cloned());
+        if let Some(account_id) = session.selected_workspace_account_id.as_ref()
+            && let Some(tokens) = auth_json.tokens.as_mut()
+        {
+            tokens.account_id = Some(account_id.clone());
+        }
+        session.workspaces = accounts
+            .accounts
+            .into_iter()
+            .map(Self::workspace_from_account)
+            .collect();
+    }
+
+    fn session_from_auth_json(auth_json: &AuthDotJson) -> Option<StoredAccountSession> {
+        let Some(tokens) = auth_json.tokens.as_ref() else {
+            return None;
+        };
+        let claims = Self::access_token_claims(&tokens.access_token);
+        let selected_workspace_account_id = tokens
+            .account_id
+            .clone()
+            .or_else(|| tokens.id_token.chatgpt_account_id.clone());
+        let workspaces = selected_workspace_account_id
+            .as_ref()
+            .map(|account_id| {
+                vec![AccountSessionWorkspace {
+                    account_id: account_id.clone(),
+                    name: None,
+                    image_url: None,
+                    kind: None,
+                    status: AccountSessionWorkspaceStatus::Active,
+                }]
+            })
+            .unwrap_or_default();
+        Some(StoredAccountSession {
+            session_id: Uuid::now_v7().to_string(),
+            auth_json: None,
+            email: tokens.id_token.email.clone(),
+            user_id: tokens.id_token.chatgpt_user_id.clone(),
+            display_name: claims.profile.name,
+            image_url: claims.profile.picture.or(claims.profile.image),
+            plan: tokens.id_token.get_chatgpt_plan_type_raw(),
+            last_used_at: Utc::now().timestamp(),
+            selected_workspace_account_id,
+            workspaces,
+        })
+    }
+
+    fn access_token_claims(access_token: &str) -> AccessTokenClaims {
+        let Some(payload) = access_token.split('.').nth(1) else {
+            return AccessTokenClaims::default();
+        };
+        base64::engine::general_purpose::URL_SAFE_NO_PAD
+            .decode(payload)
+            .ok()
+            .and_then(|payload| serde_json::from_slice(&payload).ok())
+            .unwrap_or_default()
+    }
+
+    fn same_identity(session: &StoredAccountSession, auth_json: &AuthDotJson) -> bool {
+        let Some(tokens) = auth_json.tokens.as_ref() else {
+            return false;
+        };
+        session
+            .email
+            .as_ref()
+            .zip(tokens.id_token.email.as_ref())
+            .is_some_and(|(saved, active)| saved == active)
+            || session
+                .user_id
+                .as_ref()
+                .zip(tokens.id_token.chatgpt_user_id.as_ref())
+                .is_some_and(|(saved, active)| saved == active)
+    }
+
+    fn workspace_from_account(account: AccountEntry) -> AccountSessionWorkspace {
+        let kind = match account.structure.as_str() {
+            "personal" => Some(AccountSessionWorkspaceKind::Personal),
+            "workspace" => Some(AccountSessionWorkspaceKind::Workspace),
+            _ => None,
+        };
+        AccountSessionWorkspace {
+            account_id: account.id,
+            name: account.name,
+            image_url: account.profile_picture_url,
+            kind,
+            status: AccountSessionWorkspaceStatus::Active,
+        }
+    }
+
+    fn response(stored: StoredAccountSessions) -> AccountSessionsResponse {
+        let active_session_id = stored.active_session_id;
+        let mut sessions = stored
+            .sessions
+            .into_iter()
+            .map(|session| AccountSession {
+                is_active: Some(&session.session_id) == active_session_id.as_ref(),
+                session_id: session.session_id,
+                email: session.email,
+                user_id: session.user_id,
+                display_name: session.display_name,
+                image_url: session.image_url,
+                plan: session.plan,
+                last_used_at: session.last_used_at,
+                selected_workspace_account_id: session.selected_workspace_account_id,
+                workspaces: session.workspaces,
+            })
+            .collect::<Vec<_>>();
+        sessions.sort_by_key(|session| std::cmp::Reverse(session.last_used_at));
+        AccountSessionsResponse {
+            active_session_id,
+            sessions,
+        }
+    }
+
+    fn path(&self) -> PathBuf {
+        self.codex_home.join(ACCOUNT_SESSIONS_FILE)
+    }
+}
diff --git a/codex-rs/app-server/src/lib.rs b/codex-rs/app-server/src/lib.rs
index 0689a79f00..4546c90e13 100644
--- a/codex-rs/app-server/src/lib.rs
+++ b/codex-rs/app-server/src/lib.rs
@@ -73,6 +73,7 @@ use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::registry::Registry;
 use tracing_subscriber::util::SubscriberInitExt;
 
+mod account_sessions;
 mod analytics_utils;
 mod app_server_tracing;
 mod attestation;
diff --git a/codex-rs/app-server/src/message_processor.rs b/codex-rs/app-server/src/message_processor.rs
index 84f22809ee..256b0a7c67 100644
--- a/codex-rs/app-server/src/message_processor.rs
+++ b/codex-rs/app-server/src/message_processor.rs
@@ -1286,6 +1286,18 @@ impl MessageProcessor {
             ClientRequest::CancelLoginAccount { params, .. } => {
                 self.account_processor.cancel_login_account(params).await
             }
+            ClientRequest::AccountSessionsAdd { params, .. } => {
+                self.account_processor.add_account_session(params).await
+            }
+            ClientRequest::AccountSessionsList { params, .. } => {
+                self.account_processor.list_account_sessions(params).await
+            }
+            ClientRequest::AccountSessionsLogout { params, .. } => {
+                self.account_processor.logout_account_session(params).await
+            }
+            ClientRequest::AccountSessionsSwitch { params, .. } => {
+                self.account_processor.switch_account_session(params).await
+            }
             ClientRequest::GetAccount { params, .. } => {
                 self.account_processor.get_account(params).await
             }
diff --git a/codex-rs/app-server/src/request_processors.rs b/codex-rs/app-server/src/request_processors.rs
index 36008ce0b9..12d4f355de 100644
--- a/codex-rs/app-server/src/request_processors.rs
+++ b/codex-rs/app-server/src/request_processors.rs
@@ -1,3 +1,4 @@
+use crate::account_sessions::AccountSessionsStore;
 use crate::bespoke_event_handling::apply_bespoke_event_handling;
 use crate::bespoke_event_handling::maybe_emit_hook_prompt_item_completed;
 use crate::command_exec::CommandExecManager;
@@ -22,6 +23,10 @@ use codex_analytics::InputError;
 use codex_analytics::TurnSteerRequestError;
 use codex_app_server_protocol::Account;
 use codex_app_server_protocol::AccountLoginCompletedNotification;
+use codex_app_server_protocol::AccountSessionsAddParams;
+use codex_app_server_protocol::AccountSessionsListParams;
+use codex_app_server_protocol::AccountSessionsLogoutParams;
+use codex_app_server_protocol::AccountSessionsSwitchParams;
 use codex_app_server_protocol::AccountUpdatedNotification;
 use codex_app_server_protocol::AddCreditsNudgeCreditType;
 use codex_app_server_protocol::AddCreditsNudgeEmailStatus;
diff --git a/codex-rs/app-server/src/request_processors/account_processor.rs b/codex-rs/app-server/src/request_processors/account_processor.rs
index 8ebfc037e1..8e8e120160 100644
--- a/codex-rs/app-server/src/request_processors/account_processor.rs
+++ b/codex-rs/app-server/src/request_processors/account_processor.rs
@@ -105,6 +105,55 @@ impl AccountRequestProcessor {
             .map(|response| Some(response.into()))
     }
 
+    pub(crate) async fn add_account_session(
+        &self,
+        params: AccountSessionsAddParams,
+    ) -> Result<Option<ClientResponsePayload>, JSONRPCErrorError> {
+        let response = self
+            .account_sessions_store()
+            .add(params.switch_to_added_account)
+            .await
+            .map_err(|err| internal_error(format!("failed to add account session: {err}")))?;
+        self.sync_auth_after_account_session_change().await;
+        Ok(Some(response.into()))
+    }
+
+    pub(crate) async fn list_account_sessions(
+        &self,
+        params: AccountSessionsListParams,
+    ) -> Result<Option<ClientResponsePayload>, JSONRPCErrorError> {
+        self.account_sessions_store()
+            .list(params.refresh_workspace_metadata)
+            .await
+            .map(|response| Some(response.into()))
+            .map_err(|err| internal_error(format!("failed to list account sessions: {err}")))
+    }
+
+    pub(crate) async fn logout_account_session(
+        &self,
+        params: AccountSessionsLogoutParams,
+    ) -> Result<Option<ClientResponsePayload>, JSONRPCErrorError> {
+        let response = self
+            .account_sessions_store()
+            .logout(&params.session_id)
+            .await
+            .map_err(|err| internal_error(format!("failed to log out account session: {err}")))?;
+        self.sync_auth_after_account_session_change().await;
+        Ok(Some(response.into()))
+    }
+
+    pub(crate) async fn switch_account_session(
+        &self,
+        params: AccountSessionsSwitchParams,
+    ) -> Result<Option<ClientResponsePayload>, JSONRPCErrorError> {
+        let response = self
+            .account_sessions_store()
+            .switch(&params.session_id, &params.account_id)
+            .map_err(|err| internal_error(format!("failed to switch account session: {err}")))?;
+        self.sync_auth_after_account_session_change().await;
+        Ok(Some(response.into()))
+    }
+
     pub(crate) async fn get_account(
         &self,
         params: GetAccountParams,
@@ -159,6 +208,42 @@ impl AccountRequestProcessor {
         }
     }
 
+    fn account_sessions_store(&self) -> AccountSessionsStore<'_> {
+        AccountSessionsStore::new(
+            &self.config.codex_home,
+            self.config.cli_auth_credentials_store_mode,
+            &self.config.chatgpt_base_url,
+        )
+    }
+
+    fn sync_active_account_session(&self) -> Result<(), JSONRPCErrorError> {
+        self.account_sessions_store()
+            .sync_active_auth()
+            .map_err(|err| internal_error(format!("failed to sync active account session: {err}")))
+    }
+
+    async fn sync_auth_after_account_session_change(&self) {
+        self.auth_manager.reload().await;
+        self.config_manager.replace_cloud_requirements_loader(
+            self.auth_manager.clone(),
+            self.config.chatgpt_base_url.clone(),
+        );
+        self.config_manager
+            .sync_default_client_residency_requirement()
+            .await;
+        Self::maybe_refresh_remote_installed_plugins_cache_for_current_config(
+            &self.config_manager,
+            &self.thread_manager,
+            self.auth_manager.auth_cached(),
+        )
+        .await;
+        self.outgoing
+            .send_server_notification(ServerNotification::AccountUpdated(
+                self.current_account_updated_notification(),
+            ))
+            .await;
+    }
+
     async fn maybe_refresh_remote_installed_plugins_cache_for_current_config(
         config_manager: &ConfigManager,
         thread_manager: &Arc<ThreadManager>,
@@ -265,6 +350,8 @@ impl AccountRequestProcessor {
             ));
         }
 
+        self.sync_active_account_session()?;
+
         // Cancel any active login attempt.
         {
             let mut guard = self.active_login.lock().await;
@@ -317,9 +404,16 @@ impl AccountRequestProcessor {
             ));
         }
 
+        self.sync_active_account_session()?;
+        let revoke_previous_auth = !self
+            .account_sessions_store()
+            .has_sessions()
+            .map_err(|err| internal_error(format!("failed to read account sessions: {err}")))?;
+
         let opts = LoginServerOptions {
             open_browser: false,
             codex_streamlined_login,
+            revoke_previous_auth,
             ..LoginServerOptions::new(
                 config.codex_home.to_path_buf(),
                 CLIENT_ID.to_string(),
@@ -562,6 +656,8 @@ impl AccountRequestProcessor {
             ));
         }
 
+        self.sync_active_account_session()?;
+
         // Cancel any active login attempt to avoid persisting managed auth state.
         {
             let mut guard = self.active_login.lock().await;
@@ -676,6 +772,12 @@ impl AccountRequestProcessor {
             }
         }
 
+        self.sync_active_account_session()?;
+        self.account_sessions_store()
+            .revoke_all_and_clear()
+            .await
+            .map_err(|err| internal_error(format!("failed to clear account sessions: {err}")))?;
+
         match self.auth_manager.logout_with_revoke().await {
             Ok(_) => {}
             Err(err) => {
diff --git a/codex-rs/login/src/device_code_auth.rs b/codex-rs/login/src/device_code_auth.rs
index 4b9cb7c321..53b2717209 100644
--- a/codex-rs/login/src/device_code_auth.rs
+++ b/codex-rs/login/src/device_code_auth.rs
@@ -217,6 +217,7 @@ pub async fn complete_device_code_login(
         tokens.access_token,
         tokens.refresh_token,
         opts.cli_auth_credentials_store_mode,
+        opts.revoke_previous_auth,
     )
     .await
 }
diff --git a/codex-rs/login/src/server.rs b/codex-rs/login/src/server.rs
index b72bc946f2..0a1f2cc053 100644
--- a/codex-rs/login/src/server.rs
+++ b/codex-rs/login/src/server.rs
@@ -71,6 +71,7 @@ pub struct ServerOptions {
     pub force_state: Option<String>,
     pub forced_chatgpt_workspace_id: Option<Vec<String>>,
     pub codex_streamlined_login: bool,
+    pub revoke_previous_auth: bool,
     pub cli_auth_credentials_store_mode: AuthCredentialsStoreMode,
 }
 
@@ -91,6 +92,7 @@ impl ServerOptions {
             force_state: None,
             forced_chatgpt_workspace_id,
             codex_streamlined_login: false,
+            revoke_previous_auth: true,
             cli_auth_credentials_store_mode,
         }
     }
@@ -362,6 +364,7 @@ async fn process_request(
                         tokens.access_token.clone(),
                         tokens.refresh_token.clone(),
                         opts.cli_auth_credentials_store_mode,
+                        opts.revoke_previous_auth,
                     )
                     .await
                     {
@@ -793,6 +796,7 @@ pub(crate) async fn persist_tokens_async(
     access_token: String,
     refresh_token: String,
     auth_credentials_store_mode: AuthCredentialsStoreMode,
+    revoke_previous_auth: bool,
 ) -> io::Result<()> {
     // Reuse existing synchronous logic but run it off the async runtime.
     let codex_home = codex_home.to_path_buf();
@@ -829,7 +833,8 @@ pub(crate) async fn persist_tokens_async(
     .await
     .map_err(|e| io::Error::other(format!("persist task failed: {e}")))??;
 
-    if should_revoke_auth_tokens(previous_auth.as_ref(), &auth)
+    if revoke_previous_auth
+        && should_revoke_auth_tokens(previous_auth.as_ref(), &auth)
         && let Err(err) = revoke_auth_tokens(previous_auth.as_ref()).await
     {
         warn!("failed to revoke superseded auth tokens after login: {err}");
@@ -1227,6 +1232,7 @@ mod tests {
             "new-access".to_string(),
             "new-refresh".to_string(),
             AuthCredentialsStoreMode::File,
+            /*revoke_previous_auth*/ true,
         )
         .await?;
 
@@ -1287,6 +1293,7 @@ mod tests {
             "new-access".to_string(),
             "shared-refresh".to_string(),
             AuthCredentialsStoreMode::File,
+            /*revoke_previous_auth*/ true,
         )
         .await?;
 
diff --git a/codex-rs/login/tests/suite/login_server_e2e.rs b/codex-rs/login/tests/suite/login_server_e2e.rs
index bc7bb401e8..b5979a0bcd 100644
--- a/codex-rs/login/tests/suite/login_server_e2e.rs
+++ b/codex-rs/login/tests/suite/login_server_e2e.rs
@@ -128,6 +128,7 @@ async fn end_to_end_login_flow_persists_auth_json() -> Result<()> {
         force_state: Some(state),
         forced_chatgpt_workspace_id: Some(vec![chatgpt_account_id.to_string()]),
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     assert!(
@@ -190,6 +191,7 @@ async fn creates_missing_codex_home_dir() -> Result<()> {
         force_state: Some(state),
         forced_chatgpt_workspace_id: None,
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     let login_port = server.actual_port;
@@ -233,6 +235,7 @@ async fn login_server_includes_forced_workspaces_as_one_query_param() -> Result<
             WORKSPACE_ID_SECOND_ALLOWED.to_string(),
         ]),
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     let auth_url = Url::parse(&server.auth_url)?;
@@ -271,6 +274,7 @@ async fn forced_chatgpt_workspace_id_mismatch_blocks_login() -> Result<()> {
         force_state: Some(state.clone()),
         forced_chatgpt_workspace_id: Some(vec![WORKSPACE_ID_ALLOWED.to_string()]),
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     assert!(
@@ -331,6 +335,7 @@ async fn oauth_access_denied_missing_entitlement_blocks_login_with_clear_error()
         force_state: Some(state.clone()),
         forced_chatgpt_workspace_id: None,
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     let login_port = server.actual_port;
@@ -399,6 +404,7 @@ async fn oauth_access_denied_unknown_reason_uses_generic_error_page() -> Result<
         force_state: Some(state.clone()),
         forced_chatgpt_workspace_id: None,
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
     let server = run_login_server(opts)?;
     let login_port = server.actual_port;
@@ -544,6 +550,7 @@ async fn cancels_previous_login_server_when_port_is_in_use() -> Result<()> {
         force_state: Some("cancel_state".to_string()),
         forced_chatgpt_workspace_id: None,
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
 
     let first_server = run_login_server(first_opts)?;
@@ -565,6 +572,7 @@ async fn cancels_previous_login_server_when_port_is_in_use() -> Result<()> {
         force_state: Some("cancel_state_2".to_string()),
         forced_chatgpt_workspace_id: None,
         codex_streamlined_login: false,
+        revoke_previous_auth: true,
     };
 
     let second_server = run_login_server(second_opts)?;