diff --git a/proxmox-rrd/Cargo.toml b/proxmox-rrd/Cargo.toml
index 362c8d65..72bba638 100644
--- a/proxmox-rrd/Cargo.toml
+++ b/proxmox-rrd/Cargo.toml
@@ -28,4 +28,5 @@ proxmox-time.workspace = true
 
 [features]
 default = [ "rrd_v1" ]
+api-types = []
 rrd_v1 = []
diff --git a/proxmox-rrd/src/api_types.rs b/proxmox-rrd/src/api_types.rs
new file mode 100644
index 00000000..e41c8992
--- /dev/null
+++ b/proxmox-rrd/src/api_types.rs
@@ -0,0 +1,33 @@
+use serde::{Deserialize, Serialize};
+
+use proxmox_schema::api;
+
+#[api()]
+#[derive(Copy, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "UPPERCASE")]
+/// RRD consolidation mode
+pub enum RRDMode {
+    /// Maximum
+    Max,
+    /// Average
+    Average,
+}
+
+#[api()]
+#[derive(Copy, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase")]
+/// RRD time frame
+pub enum RRDTimeFrame {
+    /// Hour
+    Hour,
+    /// Day
+    Day,
+    /// Week
+    Week,
+    /// Month
+    Month,
+    /// Year
+    Year,
+    /// Decade (10 years)
+    Decade,
+}
diff --git a/proxmox-rrd/src/lib.rs b/proxmox-rrd/src/lib.rs
index 175bb877..d0fd71c8 100644
--- a/proxmox-rrd/src/lib.rs
+++ b/proxmox-rrd/src/lib.rs
@@ -17,3 +17,6 @@ pub use rrd::Entry;
 
 mod cache;
 pub use cache::*;
+
+#[cfg(feature = "api-types")]
+pub mod api_types;