diff --git a/precalc-api.json b/precalc-api.json
index 1e70fb5..1a1a724 100644
--- a/precalc-api.json
+++ b/precalc-api.json
@@ -224,6 +224,10 @@
             "type": "string",
             "description": "Merchant ID"
           },
+          "methodId": {
+            "type": "string",
+            "description": "Payment method type id"
+          },
           "fromCountry": {
             "type": "string",
             "description": "Source country (ISO Alpha2 code)"
@@ -269,9 +273,9 @@
             "type": "string",
             "description": "Merchant ID"
           },
-          "fromCountry": {
+          "methodId": {
             "type": "string",
-            "description": "Source country (ISO Alpha2 code)"
+            "description": "Payment method type id"
           },
           "fromCurrency": {
             "type": "string",
@@ -281,10 +285,6 @@
             "type": "number",
             "description": "Source amount (one of fromAmount and toAmount must be specified)"
           },
-          "toCountry": {
-            "type": "string",
-            "description": "Destination country (ISO Alpa2 code)"
-          },
           "toCurrency": {
             "type": "string",
             "description": "Destination currency (ISO code)"
@@ -292,12 +292,6 @@
           "toAmount": {
             "type": "number",
             "description": "Destination amount (one of fromAmount and toAmount must be specified)"
-          },
-          "externalId": {
-            "maxLength": 1000,
-            "minLength": 0,
-            "type": "string",
-            "description": "Merchant's marketing ID (this ID will be placed at utm_campaign further)"
           }
         },
         "description": "Request for payment calculation (either 'fromAmount' or 'toAmount' must be specified)"