diff --git a/src/lib.rs b/src/lib.rs
index c20c26272..f9129e4a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -77,6 +77,12 @@ pub type RedfishFuture<'a, T> = Pin<Box<dyn Future<Output = T> + Send + 'a>>;
 
 /// Interface to a BMC Redfish server. All calls will include one or more HTTP network calls.
 pub trait Redfish: Send + Sync + 'static {
+    /// Populate IDs needed by `Managers/{id}` / `Systems/{id}` URL builders.
+    /// Vendor wrappers are pre-initialised, so default is a no-op.
+    fn initialize<'a>(&'a mut self) -> RedfishFuture<'a, Result<(), RedfishError>> {
+        Box::pin(async move { Ok(()) })
+    }
+
     /// Rename a user
     fn change_username<'a>(
         &'a self,
diff --git a/src/standard.rs b/src/standard.rs
index fd4a2436a..fc15512f0 100644
--- a/src/standard.rs
+++ b/src/standard.rs
@@ -69,6 +69,10 @@ pub struct RedfishStandard {
     service_root: ServiceRoot,
 }
 impl Redfish for RedfishStandard {
+    fn initialize<'a>(&'a mut self) -> crate::RedfishFuture<'a, Result<(), RedfishError>> {
+        Box::pin(RedfishStandard::initialize(self))
+    }
+
     fn create_user<'a>(
         &'a self,
         username: &'a str,
@@ -1332,6 +1336,24 @@ impl RedfishStandard {
         }
     }
 
+    /// Fetch service root + first system/manager id; populate
+    /// `manager_id` / `system_id` / `service_root`.
+    pub async fn initialize(&mut self) -> Result<(), RedfishError> {
+        let service_root = self.get_service_root().await?;
+        let systems = self.get_systems().await?;
+        let managers = self.get_managers().await?;
+        let system_id = systems.first().ok_or_else(|| RedfishError::GenericError {
+            error: "No systems found in service root".to_string(),
+        })?;
+        let manager_id = managers.first().ok_or_else(|| RedfishError::GenericError {
+            error: "No managers found in service root".to_string(),
+        })?;
+        self.set_system_id(system_id)?;
+        self.set_manager_id(manager_id)?;
+        self.set_service_root(service_root)?;
+        Ok(())
+    }
+
     pub fn system_id(&self) -> &str {
         &self.system_id
     }