diff --git a/config.ru b/config.ru
index b81a99515b98a33da3ad314d4bdcc464f21af0b7..feba6051ee8034a511ae8d76f5043125f8327759 100644
--- a/config.ru
+++ b/config.ru
@@ -26,6 +26,7 @@ end
 use Sentry::Rack::CaptureExceptions
 
 REDIS = Redis.new
+PLANS = Dhall.load("env:PLANS").sync
 BRAINTREE_CONFIG = Dhall.load("env:BRAINTREE_CONFIG").sync
 ELECTRUM = Electrum.new(
 	**Dhall::Coder.load("env:ELECTRUM_CONFIG", transform_keys: :to_sym)
@@ -90,8 +91,21 @@ class CreditCardGateway
 		@customer_id
 	end
 
+	def customer_plan
+		name = DB.exec_params(<<~SQL, [customer_id]).first&.[]("plan_name")
+			SELECT plan_name FROM customer_plans WHERE customer_id=$1 LIMIT 1
+		SQL
+		PLANS.find { |plan| plan[:name].to_s == name }
+	end
+
+	def merchant_account
+		BRAINTREE_CONFIG[:merchant_accounts][customer_plan[:currency]]
+	end
+
 	def client_token
-		@gateway.client_token.generate(customer_id: customer_id)
+		kwargs = {}
+		kwargs[:merchant_account_id] = merchant_account.to_s if merchant_account
+		@gateway.client_token.generate(customer_id: customer_id, **kwargs)
 	end
 
 	def payment_methods?