diff --git a/lib/http/client.js b/lib/http/client.js
index b8bb2664..ecc57104 100644
--- a/lib/http/client.js
+++ b/lib/http/client.js
@@ -624,8 +624,8 @@ HTTPClient.prototype.getWalletBlock = function getWalletBlock(id, height) {
  * @returns {Promise}
  */
 
-HTTPClient.prototype.getWalletCoin = function getWalletCoin(id, account, hash, index) {
-  return this._get(`/wallet/${id}/coin/${hash}/${index}`, { account });
+HTTPClient.prototype.getWalletCoin = function getWalletCoin(id, hash, index) {
+  return this._get(`/wallet/${id}/coin/${hash}/${index}`);
 };
 
 /**
@@ -823,8 +823,8 @@ HTTPClient.prototype.importAddress = function importAddress(id, account, address
  * @returns {Promise}
  */
 
-HTTPClient.prototype.lockCoin = function lockCoin(id, hash, index) {
-  return this._put(`/wallet/${id}/coin/locked`, { hash, index });
+HTTPClient.prototype.lockCoin = function lockCoin(id, hash, index, passphrase) {
+  return this._put(`/wallet/${id}/locked/${hash}/${index}`, { passphrase });
 };
 
 /**
@@ -835,8 +835,8 @@ HTTPClient.prototype.lockCoin = function lockCoin(id, hash, index) {
  * @returns {Promise}
  */
 
-HTTPClient.prototype.unlockCoin = function unlockCoin(id, hash, index) {
-  return this._del(`/wallet/${id}/coin/locked`, { hash, index });
+HTTPClient.prototype.unlockCoin = function unlockCoin(id, hash, index, passphrase) {
+  return this._del(`/wallet/${id}/locked/${hash}/${index}`, { passphrase });
 };
 
 /**
@@ -846,7 +846,7 @@ HTTPClient.prototype.unlockCoin = function unlockCoin(id, hash, index) {
  */
 
 HTTPClient.prototype.getLocked = function getLocked(id) {
-  return this._get(`/wallet/${id}/coin/locked`);
+  return this._get(`/wallet/${id}/locked`);
 };
 
 /**
diff --git a/lib/http/wallet.js b/lib/http/wallet.js
index 2b3174fc..5a48627f 100644
--- a/lib/http/wallet.js
+++ b/lib/http/wallet.js
@@ -232,8 +232,8 @@ HTTPWallet.prototype.getBlock = function getBlock(height) {
  * @see Wallet#getCoin
  */
 
-HTTPWallet.prototype.getCoin = function getCoin(account, hash, index) {
-  return this.client.getWalletCoin(this.id, account, hash, index);
+HTTPWallet.prototype.getCoin = function getCoin(hash, index) {
+  return this.client.getWalletCoin(this.id, hash, index);
 };
 
 /**
diff --git a/lib/wallet/http.js b/lib/wallet/http.js
index b74097af..a9f787e8 100644
--- a/lib/wallet/http.js
+++ b/lib/wallet/http.js
@@ -641,7 +641,7 @@ HTTPServer.prototype.initRouter = function initRouter() {
 
   // Locked coins
   this.get('/:id/locked', async (req, res) => {
-    const locked = this.wallet.getLocked();
+    const locked = await req.wallet.getLocked();
     const result = [];
 
     for (const outpoint of locked)
@@ -660,8 +660,8 @@ HTTPServer.prototype.initRouter = function initRouter() {
     enforce(index != null, 'Index is required.');
 
     const outpoint = new Outpoint(hash, index);
-
-    this.wallet.lockCoin(outpoint);
+    await req.wallet.lockCoin(outpoint);
+    res.send(200, { success: true });
   });
 
   // Unlock coin
@@ -675,7 +675,8 @@ HTTPServer.prototype.initRouter = function initRouter() {
 
     const outpoint = new Outpoint(hash, index);
 
-    this.wallet.unlockCoin(outpoint);
+    await req.wallet.unlockCoin(outpoint);
+    res.send(200, { success: true });
   });
 
   // Wallet Coin