diff --git a/src/main/java/go/kr/project/api/config/properties/VmisProperties.java b/src/main/java/go/kr/project/api/config/properties/VmisProperties.java
index 47c2cd1..f965726 100644
--- a/src/main/java/go/kr/project/api/config/properties/VmisProperties.java
+++ b/src/main/java/go/kr/project/api/config/properties/VmisProperties.java
@@ -28,27 +28,61 @@ public class VmisProperties {
         public static class ApiProps {
             @NotNull
             private UrlProps url = new UrlProps();
-            // 구/신 API 선택 플래그 (YML flag)
-            private boolean useOldBasic = false;   // true = /old-basic, false = /new-basic
-            private boolean useNewLedger = true;   // 현재는 신규 원부만 사용
 
             @Data
             public static class UrlProps {
                 @NotBlank
                 private String base = "http://localhost:8081/api/v1/vehicles"; // 기본 Base URL
-                // 구/신 API 엔드포인트 경로 (신규 요구사항 반영)
-                @NotBlank
-                private String oldBasic = "/old-basic";   // 구 자동차기본정보
-                @NotBlank
-                private String newBasic = "/new-basic";   // 신 자동차기본정보
-                @NotBlank
-                private String newLedger = "/new-ledger"; // 신 자동차등록원부(갑)
+
+                @NotNull
+                private ApiTypeProps basic = new ApiTypeProps();  // 자동차기본정보 API 설정
+
+                @NotNull
+                private ApiTypeProps ledger = new ApiTypeProps(); // 자동차등록원부(갑) API 설정
+
+                @Data
+                public static class ApiTypeProps {
+                    @NotBlank
+                    private String oldOrNew = "new";  // API 버전 선택 ("old" 또는 "new")
+
+                    @NotBlank
+                    private String oldUrl = "/old-basic";  // 구 API 엔드포인트
+
+                    @NotBlank
+                    private String newUrl = "/new-basic";  // 신 API 엔드포인트
+
+                    // 선택된 API URL 반환
+                    public String getSelectedUrl() {
+                        return "old".equalsIgnoreCase(oldOrNew) ? oldUrl : newUrl;
+                    }
+                }
 
                 // 외부 VMIS-interface 호출용 전체 URL 조합 헬퍼
-                // 구/신 URL 조합 헬퍼
-                public String buildOldBasicUrl() { return join(base, oldBasic); }
-                public String buildNewBasicUrl() { return join(base, newBasic); }
-                public String buildNewLedgerUrl() { return join(base, newLedger); }
+                // YAML 설정(old-or-new)에 따라 자동으로 선택
+                public String buildBasicUrl() {
+                    return join(base, basic.getSelectedUrl());
+                }
+
+                public String buildLedgerUrl() {
+                    return join(base, ledger.getSelectedUrl());
+                }
+
+                // 명시적으로 old/new 버전 선택 (하위 호환성 및 명시적 호출용)
+                public String buildOldBasicUrl() {
+                    return join(base, basic.getOldUrl());
+                }
+
+                public String buildNewBasicUrl() {
+                    return join(base, basic.getNewUrl());
+                }
+
+                public String buildOldLedgerUrl() {
+                    return join(base, ledger.getOldUrl());
+                }
+
+                public String buildNewLedgerUrl() {
+                    return join(base, ledger.getNewUrl());
+                }
 
                 private String join(String base, String path) {
                     String b = base;