diff --git a/bindings_node/CHANGELOG.md b/bindings_node/CHANGELOG.md
index 4c2dbe669..426caf777 100644
--- a/bindings_node/CHANGELOG.md
+++ b/bindings_node/CHANGELOG.md
@@ -1,5 +1,9 @@
 # @xmtp/node-bindings
 
+## 0.0.21
+
+- Added `installation_id_bytes` to `Client`
+
 ## 0.0.20
 
 - Fixed argument types for new signing methods
diff --git a/bindings_node/package.json b/bindings_node/package.json
index 9939f3844..65db63a12 100644
--- a/bindings_node/package.json
+++ b/bindings_node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xmtp/node-bindings",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "repository": {
     "type": "git",
     "url": "git+https://git@github.com/xmtp/libxmtp.git",
diff --git a/bindings_node/src/client.rs b/bindings_node/src/client.rs
index d2158b57c..3f042e501 100644
--- a/bindings_node/src/client.rs
+++ b/bindings_node/src/client.rs
@@ -201,6 +201,11 @@ impl Client {
     ed25519_public_key_to_address(self.inner_client.installation_public_key().as_slice())
   }
 
+  #[napi]
+  pub fn installation_id_bytes(&self) -> Uint8Array {
+    self.inner_client.installation_public_key().into()
+  }
+
   #[napi]
   pub async fn can_message(&self, account_addresses: Vec<String>) -> Result<HashMap<String, bool>> {
     let results: HashMap<String, bool> = self
diff --git a/bindings_wasm/CHANGELOG.md b/bindings_wasm/CHANGELOG.md
index ae7da1394..69994bd9e 100644
--- a/bindings_wasm/CHANGELOG.md
+++ b/bindings_wasm/CHANGELOG.md
@@ -1,5 +1,10 @@
 # @xmtp/wasm-bindings
 
+## 0.0.6
+
+- Added `installation_id_bytes` to `Client`
+- Added `sign_with_installation_key`, `verify_signed_with_installation_key`, and `verify_signed_with_public_key` to `Client`
+
 ## 0.0.5
 
 - Filtered out group membership messages from DM groups
diff --git a/bindings_wasm/package.json b/bindings_wasm/package.json
index e799e8cf2..d963f21e1 100644
--- a/bindings_wasm/package.json
+++ b/bindings_wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xmtp/wasm-bindings",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "type": "module",
   "license": "MIT",
   "description": "WASM bindings for the libXMTP rust library",
diff --git a/bindings_wasm/src/client.rs b/bindings_wasm/src/client.rs
index 7b3711d79..13451ce22 100644
--- a/bindings_wasm/src/client.rs
+++ b/bindings_wasm/src/client.rs
@@ -11,6 +11,7 @@ use wasm_bindgen::JsValue;
 use xmtp_api_http::XmtpHttpApiClient;
 use xmtp_cryptography::signature::ed25519_public_key_to_address;
 use xmtp_id::associations::builder::SignatureRequest;
+use xmtp_id::associations::verify_signed_with_public_context;
 use xmtp_mls::builder::ClientBuilder;
 use xmtp_mls::groups::scoped_client::ScopedGroupClient;
 use xmtp_mls::identity::IdentityStrategy;
@@ -203,6 +204,11 @@ impl Client {
     ed25519_public_key_to_address(self.inner_client.installation_public_key().as_slice())
   }
 
+  #[wasm_bindgen(getter, js_name = installationIdBytes)]
+  pub fn installation_id_bytes(&self) -> Uint8Array {
+    Uint8Array::from(self.inner_client.installation_public_key().as_slice())
+  }
+
   #[wasm_bindgen(js_name = canMessage)]
   pub async fn can_message(&self, account_addresses: Vec<String>) -> Result<JsValue, JsError> {
     let results: HashMap<String, bool> = self
@@ -278,4 +284,50 @@ impl Client {
   pub fn conversations(&self) -> Conversations {
     Conversations::new(self.inner_client.clone())
   }
+
+  #[wasm_bindgen(js_name = signWithInstallationKey)]
+  pub fn sign_with_installation_key(&self, signature_text: String) -> Result<Uint8Array, JsError> {
+    let result = self
+      .inner_client
+      .context()
+      .sign_with_public_context(signature_text)
+      .map_err(|e| JsError::new(format!("{}", e).as_str()))?;
+
+    Ok(Uint8Array::from(result.as_slice()))
+  }
+
+  #[wasm_bindgen(js_name = verifySignedWithInstallationKey)]
+  pub fn verify_signed_with_installation_key(
+    &self,
+    signature_text: String,
+    signature_bytes: Uint8Array,
+  ) -> Result<(), JsError> {
+    let public_key = self.inner_client().installation_public_key();
+    self.verify_signed_with_public_key(
+      signature_text,
+      signature_bytes,
+      Uint8Array::from(public_key.as_slice()),
+    )
+  }
+
+  #[wasm_bindgen(js_name = verifySignedWithPublicKey)]
+  pub fn verify_signed_with_public_key(
+    &self,
+    signature_text: String,
+    signature_bytes: Uint8Array,
+    public_key: Uint8Array,
+  ) -> Result<(), JsError> {
+    let signature_bytes = signature_bytes.to_vec();
+    let signature_bytes: [u8; 64] = signature_bytes
+      .try_into()
+      .map_err(|_| JsError::new("signature_bytes is not 64 bytes long."))?;
+
+    let public_key = public_key.to_vec();
+    let public_key: [u8; 32] = public_key
+      .try_into()
+      .map_err(|_| JsError::new("public_key is not 32 bytes long."))?;
+
+    verify_signed_with_public_context(signature_text, &signature_bytes, &public_key)
+      .map_err(|e| JsError::new(format!("{}", e).as_str()))
+  }
 }