diff --git a/lib/binance/client/rest.rb b/lib/binance/client/rest.rb
index e3a9a59..169baf0 100644
--- a/lib/binance/client/rest.rb
+++ b/lib/binance/client/rest.rb
@@ -9,18 +9,21 @@
 module Binance
   module Client
     class REST
-      BASE_URL = 'https://api.binance.com'.freeze
-
       def initialize(api_key: '', secret_key: '',
-                     adapter: Faraday.default_adapter)
+                     adapter: Faraday.default_adapter,
+                     api_url: '')
         @clients = {}
         @clients[:public]   = public_client adapter
         @clients[:verified] = verified_client api_key, adapter
         @clients[:signed]   = signed_client api_key, secret_key, adapter
         @clients[:withdraw] = withdraw_client api_key, secret_key, adapter
+        @clients[:withdraw_sapi] = withdraw_sapi_client api_key, secret_key, adapter
         @clients[:public_withdraw] = public_withdraw_client adapter
+        @api_url = api_url
       end
 
+      BASE_URL = @api_url.freeze
+
       METHODS.each do |method|
         define_method(method[:name]) do |options = {}|
           response = @clients[method[:client]].send(method[:action]) do |req|
diff --git a/lib/binance/client/rest/clients.rb b/lib/binance/client/rest/clients.rb
index 7831998..1c20737 100644
--- a/lib/binance/client/rest/clients.rb
+++ b/lib/binance/client/rest/clients.rb
@@ -48,6 +48,17 @@ def withdraw_client(api_key, secret_key, adapter)
           conn.adapter adapter
         end
       end
+
+      def withdraw_sapi_client(api_key, secret_key, adapter)
+        Faraday.new(url: "#{BASE_URL}/sapi") do |conn|
+          conn.request :url_encoded
+          conn.response :json, content_type: /\bjson$/
+          conn.headers['X-MBX-APIKEY'] = api_key
+          conn.use TimestampRequestMiddleware
+          conn.use SignRequestMiddleware, secret_key
+          conn.adapter adapter
+        end
+      end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/binance/client/rest/endpoints.rb b/lib/binance/client/rest/endpoints.rb
index 7595e89..93d57d7 100644
--- a/lib/binance/client/rest/endpoints.rb
+++ b/lib/binance/client/rest/endpoints.rb
@@ -26,13 +26,15 @@ class REST
 
         # Withdraw API Endpoints
         withdraw:         'v3/withdraw.html',
+        withdraw_sapi:    'v1/capital/withdraw/apply',
         deposit_history:  'v3/depositHistory.html',
         withdraw_history: 'v3/withdrawHistory.html',
         deposit_address:  'v3/depositAddress.html',
         account_status:   'v3/accountStatus.html',
         system_status:    'v3/systemStatus.html',
         withdraw_fee:     'v3/withdrawFee.html',
-        dust_log:         'v3/userAssetDribbletLog.html'
+        dust_log:         'v3/userAssetDribbletLog.html',
+        all_coin_info:    'v1/capital/config/getall'
       }.freeze
     end
   end
diff --git a/lib/binance/client/rest/methods.rb b/lib/binance/client/rest/methods.rb
index 6ff72ed..fae5f27 100644
--- a/lib/binance/client/rest/methods.rb
+++ b/lib/binance/client/rest/methods.rb
@@ -79,6 +79,9 @@ class REST
         # #withdraw!
         { name: :withdraw!, client: :withdraw,
           action: :post, endpoint: :withdraw },
+        # #withdraw_sapi!
+        { name: :withdraw_sapi!, client: :withdraw_sapi,
+          action: :post, endpoint: :withdraw_sapi },
         # #deposit_history
         { name: :deposit_history, client: :withdraw,
           action: :get, endpoint: :deposit_history },
@@ -99,7 +102,10 @@ class REST
           action: :get, endpoint: :withdraw_fee },
         # dust_log
         { name: :dust_log, client: :withdraw,
-          action: :get, endpoint: :dust_log }
+          action: :get, endpoint: :dust_log },
+        # all_coin_info
+        { name: :all_coin_info, client: :withdraw_sapi,
+          action: :get, endpoint: :all_coin_info }
       ].freeze
     end
   end