diff --git a/index.d.ts b/index.d.ts
index c756ce0..3feea4f 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -359,6 +359,7 @@ export declare function oracleDelegatedPuzzle(oraclePuzzleHash: Buffer, oracleFe
  * @returns {Promise<Buffer>} The signature.
  */
 export declare function signCoinSpends(coinSpends: Array<CoinSpend>, privateKeys: Array<Buffer>, forTestnet: boolean): Buffer
+export declare function hexSpendBundleToCoinSpends(hex: string): Array<CoinSpend>
 /**
  * Computes the ID (name) of a coin.
  *
diff --git a/index.js b/index.js
index fc7a1ab..25190fc 100644
--- a/index.js
+++ b/index.js
@@ -310,7 +310,7 @@ if (!nativeBinding) {
   throw new Error(`Failed to load native binding`)
 }
 
-const { newLineageProof, newEveProof, Tls, Peer, PeerType, selectCoins, sendXch, morphLauncherId, createServerCoin, mintStore, oracleSpend, addFee, masterPublicKeyToWalletSyntheticKey, masterPublicKeyToFirstPuzzleHash, masterSecretKeyToWalletSyntheticSecretKey, secretKeyToPublicKey, puzzleHashToAddress, addressToPuzzleHash, adminDelegatedPuzzleFromKey, writerDelegatedPuzzleFromKey, oracleDelegatedPuzzle, signCoinSpends, getCoinId, updateStoreMetadata, updateStoreOwnership, meltStore, signMessage, verifySignedMessage, syntheticKeyToPuzzleHash, getCost, getMainnetGenesisChallenge, getTestnet11GenesisChallenge, simulatorNewPuzzle, simulatorNewBlspair, simulatorNewProgram } = nativeBinding
+const { newLineageProof, newEveProof, Tls, Peer, PeerType, selectCoins, sendXch, morphLauncherId, createServerCoin, mintStore, oracleSpend, addFee, masterPublicKeyToWalletSyntheticKey, masterPublicKeyToFirstPuzzleHash, masterSecretKeyToWalletSyntheticSecretKey, secretKeyToPublicKey, puzzleHashToAddress, addressToPuzzleHash, adminDelegatedPuzzleFromKey, writerDelegatedPuzzleFromKey, oracleDelegatedPuzzle, signCoinSpends, hexSpendBundleToCoinSpends, getCoinId, updateStoreMetadata, updateStoreOwnership, meltStore, signMessage, verifySignedMessage, syntheticKeyToPuzzleHash, getCost, getMainnetGenesisChallenge, getTestnet11GenesisChallenge, simulatorNewPuzzle, simulatorNewBlspair, simulatorNewProgram } = nativeBinding
 
 module.exports.newLineageProof = newLineageProof
 module.exports.newEveProof = newEveProof
@@ -334,6 +334,7 @@ module.exports.adminDelegatedPuzzleFromKey = adminDelegatedPuzzleFromKey
 module.exports.writerDelegatedPuzzleFromKey = writerDelegatedPuzzleFromKey
 module.exports.oracleDelegatedPuzzle = oracleDelegatedPuzzle
 module.exports.signCoinSpends = signCoinSpends
+module.exports.hexSpendBundleToCoinSpends = hexSpendBundleToCoinSpends
 module.exports.getCoinId = getCoinId
 module.exports.updateStoreMetadata = updateStoreMetadata
 module.exports.updateStoreOwnership = updateStoreOwnership
diff --git a/src/lib.rs b/src/lib.rs
index bd17733..a8d6cdf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1368,6 +1368,17 @@ pub fn sign_coin_spends(
     sig.to_js()
 }
 
+#[napi]
+pub fn hex_spend_bundle_to_coin_spends(hex: String) -> napi::Result<Vec<CoinSpend>> {
+    let bytes = hex::decode(hex).map_err(js::err)?;
+    let spend_bundle = RustSpendBundle::from_bytes(&bytes).map_err(js::err)?;
+    spend_bundle
+        .coin_spends
+        .into_iter()
+        .map(|cs| cs.to_js())
+        .collect::<Result<Vec<CoinSpend>>>()
+}
+
 #[napi]
 /// Computes the ID (name) of a coin.
 ///
@@ -1615,5 +1626,5 @@ pub fn simulator_new_program(pk: Buffer) -> napi::Result<Buffer> {
     let pk = RustPublicKey::from_js(pk)?;
     let program =
         to_program([AggSigMe::new(pk, b"Hello, world!".to_vec().into())]).map_err(js::err)?;
-    Ok(program.to_js()?)
+    program.to_js()
 }