diff --git a/packages/shared/lib/Cargo.lock b/packages/shared/lib/Cargo.lock
index 679360e0c..49d1152e1 100644
--- a/packages/shared/lib/Cargo.lock
+++ b/packages/shared/lib/Cargo.lock
@@ -1925,8 +1925,8 @@ checksum = "e5ce46fe64a9d73be07dcbe690a38ce1b293be448fd8ce1e6c1b8062c9f72c6a"
 
 [[package]]
 name = "namada"
-version = "0.18.0"
-source = "git+https://github.com/anoma/namada#c2779df63b226036c345f4ad645664933cd412d0"
+version = "0.18.1"
+source = "git+https://github.com/anoma/namada#ecd4c5ed936bb8c9f88be6cf456092b323d957b0"
 dependencies = [
  "async-std",
  "async-trait",
@@ -1965,8 +1965,8 @@ dependencies = [
 
 [[package]]
 name = "namada_core"
-version = "0.18.0"
-source = "git+https://github.com/anoma/namada#c2779df63b226036c345f4ad645664933cd412d0"
+version = "0.18.1"
+source = "git+https://github.com/anoma/namada#ecd4c5ed936bb8c9f88be6cf456092b323d957b0"
 dependencies = [
  "ark-bls12-381",
  "ark-ec",
@@ -2010,8 +2010,8 @@ dependencies = [
 
 [[package]]
 name = "namada_macros"
-version = "0.18.0"
-source = "git+https://github.com/anoma/namada#c2779df63b226036c345f4ad645664933cd412d0"
+version = "0.18.1"
+source = "git+https://github.com/anoma/namada#ecd4c5ed936bb8c9f88be6cf456092b323d957b0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2020,8 +2020,8 @@ dependencies = [
 
 [[package]]
 name = "namada_proof_of_stake"
-version = "0.18.0"
-source = "git+https://github.com/anoma/namada#c2779df63b226036c345f4ad645664933cd412d0"
+version = "0.18.1"
+source = "git+https://github.com/anoma/namada#ecd4c5ed936bb8c9f88be6cf456092b323d957b0"
 dependencies = [
  "borsh",
  "data-encoding",
diff --git a/packages/shared/lib/Cargo.toml b/packages/shared/lib/Cargo.toml
index 8a44fe67c..052bb1d18 100644
--- a/packages/shared/lib/Cargo.toml
+++ b/packages/shared/lib/Cargo.toml
@@ -23,7 +23,7 @@ gloo-utils = { version = "0.1.5", features = ["serde"] }
 js-sys = "0.3.60"
 masp_primitives = { git = "https://github.com/anoma/masp", rev = "9320c6b69b5d2e97134866871e960f0a31703813" }
 masp_proofs = { git = "https://github.com/anoma/masp", rev = "9320c6b69b5d2e97134866871e960f0a31703813", default-features = false, features = ["local-prover"] }
-namada = { git = "https://github.com/anoma/namada", version = "0.18.0", default-features = false, features = ["abciplus", "namada-sdk"] }
+namada = { git = "https://github.com/anoma/namada", version = "0.18.1", default-features = false, features = ["abciplus", "namada-sdk"] }
 prost = "0.9.0"
 prost-types = "0.9.0"
 rand = "0.8.5"
diff --git a/packages/shared/lib/src/sdk/mod.rs b/packages/shared/lib/src/sdk/mod.rs
index 460cc6fd6..e1ee89367 100644
--- a/packages/shared/lib/src/sdk/mod.rs
+++ b/packages/shared/lib/src/sdk/mod.rs
@@ -1,14 +1,22 @@
-use namada::ledger::{
-    masp::ShieldedContext,
-    wallet::{Store, Wallet},
-};
-use wasm_bindgen::{prelude::wasm_bindgen, JsError, JsValue};
-
+use crate::utils::to_js_result;
 use crate::{
     rpc_client::HttpClient,
     sdk::masp::WebShieldedUtils,
     utils::{set_panic_hook, to_bytes},
 };
+use borsh::BorshSerialize;
+use namada::{
+    ledger::{
+        args,
+        masp::ShieldedContext,
+        signing,
+        wallet::{Store, Wallet},
+    },
+    proto::{Section, Signature, Tx},
+    types::{key::common::PublicKey, key::common::SecretKey as SK, key::ed25519::SecretKey},
+};
+use std::str::FromStr;
+use wasm_bindgen::{prelude::wasm_bindgen, JsError, JsValue};
 
 pub mod masp;
 mod tx;
@@ -87,28 +95,126 @@ impl Sdk {
         wallet::add_spending_key(&mut self.wallet, xsk, password, alias)
     }
 
-    pub async fn submit_bond(
+    async fn submit_reveal_pk(
         &mut self,
-        tx_msg: &[u8],
-        password: Option<String>,
+        args: &args::Tx,
+        mut tx: Tx,
+        pk: &PublicKey,
     ) -> Result<(), JsError> {
-        let args = tx::bond_tx_args(tx_msg, password)?;
+        // Build a transaction to reveal the signer of this transaction
+        let reveal_pk = namada::ledger::tx::build_reveal_pk(
+            &self.client,
+            &mut self.wallet,
+            args::RevealPk {
+                tx: args.clone(),
+                public_key: pk.clone(),
+            },
+        )
+        .await?;
+
+        // Sign and submit reveal pk
+        if let Some((mut rtx, _, pk)) = reveal_pk {
+            // Sign the reveal public key transaction with the fee payer
+            signing::sign_tx(&mut self.wallet, &mut rtx, &args, &pk).await?;
+            // Submit the reveal public key transaction first
+            namada::ledger::tx::process_tx(&self.client, &mut self.wallet, &args, rtx).await?;
+            // Update the stateful PoW challenge of the outer transaction
+            #[cfg(not(feature = "mainnet"))]
+            signing::update_pow_challenge(&self.client, &args, &mut tx, &pk, false).await;
+        }
+
+        Ok(())
+    }
+
+    /// Sign and submit transactions
+    async fn sign_and_process_tx(
+        &mut self,
+        args: args::Tx,
+        mut tx: Tx,
+        pk: PublicKey,
+    ) -> Result<(), JsError> {
+        // Submit a reveal pk tx if necessary
+        self.submit_reveal_pk(&args, tx.clone(), &pk).await?;
 
-        namada::ledger::tx::submit_bond(&mut self.client, &mut self.wallet, args)
+        // Sign tx
+        signing::sign_tx(&mut self.wallet, &mut tx, &args, &pk)
             .await
-            .map_err(|e| JsError::from(e))
+            .map_err(JsError::from)?;
+
+        // Submit tx
+        namada::ledger::tx::process_tx(&self.client, &mut self.wallet, &args, tx)
+            .await
+            .map_err(JsError::from)?;
+
+        Ok(())
     }
 
-    pub async fn submit_unbond(
+    /// Contruct transfer data for external signers, returns byte array
+    pub async fn build_transfer(&mut self, tx_msg: &[u8]) -> Result<JsValue, JsError> {
+        let args = tx::transfer_tx_args(tx_msg, None, None)?;
+
+        let transfer = namada::ledger::tx::build_transfer(
+            &self.client,
+            &mut self.wallet,
+            &mut self.shielded_ctx,
+            args.clone(),
+        )
+        .await
+        .map_err(JsError::from)?;
+
+        let bytes = transfer.0.try_to_vec().map_err(JsError::from)?;
+
+        to_js_result(bytes)
+    }
+
+    // Append signatures and return tx bytes
+    pub fn sign_tx(
+        &self,
+        tx_bytes: &[u8],
+        data_key: String,
+        header_key: String,
+    ) -> Result<JsValue, JsError> {
+        let mut tx: Tx = Tx::try_from(tx_bytes).map_err(JsError::from)?;
+        let data_secret = SecretKey::from_str(&data_key).map_err(JsError::from)?;
+        let header_secret = SecretKey::from_str(&header_key).map_err(JsError::from)?;
+
+        // Sign over the transaction data
+        tx.add_section(Section::Signature(Signature::new(
+            vec![*tx.data_sechash(), *tx.code_sechash()],
+            &SK::Ed25519(data_secret),
+        )));
+
+        tx.protocol_filter();
+
+        // Then sign over the bound wrapper
+        tx.add_section(Section::Signature(Signature::new(
+            tx.sechashes(),
+            &SK::Ed25519(header_secret),
+        )));
+
+        let bytes = tx.try_to_vec().map_err(|e| JsError::from(e))?;
+        to_js_result(Vec::from(bytes))
+    }
+
+    /// Submit signed transfer tx
+    pub async fn submit_signed_transfer(
         &mut self,
+        pk: String,
         tx_msg: &[u8],
-        password: Option<String>,
+        tx_bytes: &[u8],
     ) -> Result<(), JsError> {
-        let args = tx::unbond_tx_args(tx_msg, password)?;
+        let transfer_tx = Tx::try_from(tx_bytes).map_err(|e| JsError::from(e))?;
+        let args = tx::transfer_tx_args(tx_msg, None, None).map_err(|e| JsError::from(e))?;
+        let pk = PublicKey::from_str(&pk).map_err(JsError::from)?;
+
+        self.submit_reveal_pk(&args.tx, transfer_tx.clone(), &pk)
+            .await?;
 
-        namada::ledger::tx::submit_unbond(&mut self.client, &mut self.wallet, args)
+        namada::ledger::tx::process_tx(&self.client, &mut self.wallet, &args.tx, transfer_tx)
             .await
-            .map_err(|e| JsError::from(e))
+            .map_err(JsError::from)?;
+
+        Ok(())
     }
 
     pub async fn submit_transfer(
@@ -118,14 +224,18 @@ impl Sdk {
         xsk: Option<String>,
     ) -> Result<(), JsError> {
         let args = tx::transfer_tx_args(tx_msg, password, xsk)?;
-        namada::ledger::tx::submit_transfer(
+        let (tx, _, pk, _, _) = namada::ledger::tx::build_transfer(
             &self.client,
             &mut self.wallet,
             &mut self.shielded_ctx,
-            args,
+            args.clone(),
         )
         .await
-        .map_err(|e| JsError::from(e))
+        .map_err(JsError::from)?;
+
+        self.sign_and_process_tx(args.tx, tx, pk).await?;
+
+        Ok(())
     }
 
     pub async fn submit_ibc_transfer(
@@ -135,9 +245,48 @@ impl Sdk {
     ) -> Result<(), JsError> {
         let args = tx::ibc_transfer_tx_args(tx_msg, password)?;
 
-        namada::ledger::tx::submit_ibc_transfer(&self.client, &mut self.wallet, args)
-            .await
-            .map_err(|e| JsError::from(e))
+        let (tx, _, pk) =
+            namada::ledger::tx::build_ibc_transfer(&self.client, &mut self.wallet, args.clone())
+                .await
+                .map_err(JsError::from)?;
+
+        self.sign_and_process_tx(args.tx, tx, pk).await?;
+
+        Ok(())
+    }
+
+    pub async fn submit_bond(
+        &mut self,
+        tx_msg: &[u8],
+        password: Option<String>,
+    ) -> Result<(), JsError> {
+        let args = tx::bond_tx_args(tx_msg, password)?;
+
+        let (tx, _, pk) =
+            namada::ledger::tx::build_bond(&mut self.client, &mut self.wallet, args.clone())
+                .await
+                .map_err(JsError::from)?;
+
+        self.sign_and_process_tx(args.tx, tx, pk).await?;
+
+        Ok(())
+    }
+
+    pub async fn submit_unbond(
+        &mut self,
+        tx_msg: &[u8],
+        password: Option<String>,
+    ) -> Result<(), JsError> {
+        let args = tx::unbond_tx_args(tx_msg, password)?;
+
+        let (tx, _, pk, _) =
+            namada::ledger::tx::build_unbond(&mut self.client, &mut self.wallet, args.clone())
+                .await
+                .map_err(JsError::from)?;
+
+        self.sign_and_process_tx(args.tx, tx, pk).await?;
+
+        Ok(())
     }
 }
 
diff --git a/packages/shared/lib/src/sdk/tx.rs b/packages/shared/lib/src/sdk/tx.rs
index d428f373d..9a44c29db 100644
--- a/packages/shared/lib/src/sdk/tx.rs
+++ b/packages/shared/lib/src/sdk/tx.rs
@@ -7,6 +7,8 @@ use namada::{
     types::{
         address::Address,
         chain::ChainId,
+        key::common::PublicKey as PK,
+        key::ed25519::PublicKey,
         masp::{ExtendedSpendingKey, PaymentAddress, TransferSource, TransferTarget},
         token::{Amount, DenominatedAmount, Denomination},
         transaction::GasLimit,
@@ -20,6 +22,7 @@ pub struct TxMsg {
     fee_amount: u64,
     gas_limit: u64,
     chain_id: String,
+    public_key: Option<String>,
 }
 
 #[derive(BorshSerialize, BorshDeserialize)]
@@ -175,6 +178,7 @@ pub fn transfer_tx_args(
             ))),
         },
     }?;
+
     let native_token = Address::from_str(&native_token)?;
     let token = Address::from_str(&token)?;
     let amount_str = amount.to_string();
@@ -275,8 +279,8 @@ fn tx_msg_into_args(tx_msg: TxMsg, password: Option<String>) -> Result<args::Tx,
         token,
         fee_amount,
         gas_limit,
-        // TODO: remove all the unused tx codes
         chain_id,
+        public_key,
     } = tx_msg;
 
     let token = Address::from_str(&token)?;
@@ -289,6 +293,13 @@ fn tx_msg_into_args(tx_msg: TxMsg, password: Option<String>) -> Result<args::Tx,
 
     let password = password.map(|pwd| zeroize::Zeroizing::new(pwd));
     let gas_limit = Amount::from(gas_limit);
+    let public_key = match public_key {
+        Some(v) => {
+            let pk = PublicKey::from_str(&v).map_err(JsError::from)?;
+            Some(PK::Ed25519(pk))
+        }
+        _ => None,
+    };
 
     let args = args::Tx {
         dry_run: false,
@@ -306,6 +317,7 @@ fn tx_msg_into_args(tx_msg: TxMsg, password: Option<String>) -> Result<args::Tx,
         signing_key: None,
         signer: None,
         tx_reveal_code_path: PathBuf::from("tx_reveal_pk.wasm"),
+        verification_key: public_key,
         password,
     };
     Ok(args)
diff --git a/packages/types/src/tx/schema/tx.ts b/packages/types/src/tx/schema/tx.ts
index 24d3c47f6..b3e055e98 100644
--- a/packages/types/src/tx/schema/tx.ts
+++ b/packages/types/src/tx/schema/tx.ts
@@ -7,18 +7,22 @@ export class TxMsgValue {
   fee_amount: BN;
   gas_limit: BN;
   chain_id: string;
+  public_key?: string;
 
   constructor(properties: TxProps | SchemaObject<typeof TxMsgSchema>) {
     this.token = properties.token;
-    this.fee_amount = 'feeAmount' in properties ?
-      new BN(properties.feeAmount.toString()) :
-      properties.fee_amount;
-    this.gas_limit = 'gasLimit' in properties ?
-      new BN(properties.gasLimit.toString()) :
-      properties.gas_limit;
-    this.chain_id = 'chainId' in properties ?
-      properties.chainId :
-      properties.chain_id;
+    this.fee_amount =
+      "feeAmount" in properties
+        ? new BN(properties.feeAmount.toString())
+        : properties.fee_amount;
+    this.gas_limit =
+      "gasLimit" in properties
+        ? new BN(properties.gasLimit.toString())
+        : properties.gas_limit;
+    this.chain_id =
+      "chainId" in properties ? properties.chainId : properties.chain_id;
+    this.public_key =
+      "publicKey" in properties ? properties.publicKey : undefined;
   }
 }
 
@@ -31,6 +35,7 @@ export const TxMsgSchema = [
       ["fee_amount", "u64"],
       ["gas_limit", "u64"],
       ["chain_id", "string"],
+      ["public_key", { kind: "option", type: "string" }],
     ],
   },
 ] as const; // needed for SchemaObject to deduce types correctly
diff --git a/packages/types/src/tx/types.ts b/packages/types/src/tx/types.ts
index 45e32a4bf..4eb07f906 100644
--- a/packages/types/src/tx/types.ts
+++ b/packages/types/src/tx/types.ts
@@ -20,6 +20,7 @@ export type TxProps = {
   feeAmount: BigNumber;
   gasLimit: BigNumber;
   chainId: string;
+  publicKey?: string;
 };
 
 export type TransferProps = {