diff --git a/keypair/src/key_pair.rs b/keypair/src/key_pair.rs
index 5b14d8c..2238e54 100644
--- a/keypair/src/key_pair.rs
+++ b/keypair/src/key_pair.rs
@@ -48,6 +48,7 @@ use std::str::FromStr;
 /// ```
 ///
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum KeyFormat {
     Ed25519,
     #[cfg(not(target_arch = "wasm32"))]
@@ -168,6 +169,18 @@ impl KeyPair {
         }
     }
 
+    /// Get the key format of this keypair.
+    pub fn key_format(&self) -> KeyFormat {
+        use KeyPair::*;
+
+        match self {
+            Ed25519(_) => KeyFormat::Ed25519,
+            #[cfg(not(target_arch = "wasm32"))]
+            Rsa(_) => KeyFormat::Rsa,
+            Secp256k1(_) => KeyFormat::Secp256k1,
+        }
+    }
+
     /// Get the public key of this keypair.
     pub fn public(&self) -> PublicKey {
         use KeyPair::*;