diff --git a/mintlify/openapi.yaml b/mintlify/openapi.yaml
index e1352fe..a4ce620 100644
--- a/mintlify/openapi.yaml
+++ b/mintlify/openapi.yaml
@@ -5460,6 +5460,10 @@ components:
               type: string
               description: The ISO 4217 currency code
               example: USD
+            platformAccountId:
+              type: string
+              description: Your platform's identifier for the account in your system. This can be used to reference the account by your own identifier.
+              example: ext_acc_123456
             defaultUmaDepositAccount:
               type: boolean
               description: Whether to set the external account as the default UMA deposit account. When set to true, incoming payments to this customer's UMA address will be automatically deposited into this external account. False if not provided. Note that only one external account can be set as the default UMA deposit account for a customer, so if there is already a default UMA deposit account, this will override the existing default UMA deposit account. If there is no default UMA deposit account, incoming UMA payments will be deposited into the primary internal account for the customer.
diff --git a/openapi.yaml b/openapi.yaml
index e1352fe..a4ce620 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -5460,6 +5460,10 @@ components:
               type: string
               description: The ISO 4217 currency code
               example: USD
+            platformAccountId:
+              type: string
+              description: Your platform's identifier for the account in your system. This can be used to reference the account by your own identifier.
+              example: ext_acc_123456
             defaultUmaDepositAccount:
               type: boolean
               description: Whether to set the external account as the default UMA deposit account. When set to true, incoming payments to this customer's UMA address will be automatically deposited into this external account. False if not provided. Note that only one external account can be set as the default UMA deposit account for a customer, so if there is already a default UMA deposit account, this will override the existing default UMA deposit account. If there is no default UMA deposit account, incoming UMA payments will be deposited into the primary internal account for the customer.
diff --git a/openapi/components/schemas/external_accounts/ExternalAccountCreateRequest.yaml b/openapi/components/schemas/external_accounts/ExternalAccountCreateRequest.yaml
index 1975063..5b8a018 100644
--- a/openapi/components/schemas/external_accounts/ExternalAccountCreateRequest.yaml
+++ b/openapi/components/schemas/external_accounts/ExternalAccountCreateRequest.yaml
@@ -14,6 +14,10 @@ allOf:
         type: string
         description: The ISO 4217 currency code
         example: USD
+      platformAccountId:
+        type: string
+        description: Your platform's identifier for the account in your system. This can be used to reference the account by your own identifier.
+        example: ext_acc_123456
       defaultUmaDepositAccount:
         type: boolean
         description: >-