diff --git a/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpApiController.java b/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpApiController.java
index df06370..d354d17 100644
--- a/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpApiController.java
+++ b/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpApiController.java
@@ -32,11 +32,139 @@ public class ObpApiController extends BaseRestController {
     }
 
     /**
-     * 전체 API 목록 조회
+     * OBP API 전체 목록 조회 (v2)
      *
      * @param pretty true면 JSON 들여쓰기 적용
      * @return JSON Array
      */
+    @RequestMapping(value = "/api/apis.json", produces = JSON_CONTENT_TYPE)
+    @ResponseBody
+    public String getApisV2(@RequestParam(value = "pretty", required = false) Boolean pretty) {
+        log.debug("OBP API 목록 조회 요청 (v2): pretty={}", pretty);
+        long startTime = System.currentTimeMillis();
+
+        DataSourceContextHolder.setDataSourceType(
+                DataSourceTypeManager.getDataSourceType(DataSourceTypeManager.APIGW));
+
+        try {
+            List<ObpApiDTO> apis = obpApiService.findAllApis();
+
+            String json = toJson(apis, pretty);
+
+            long elapsed = System.currentTimeMillis() - startTime;
+            log.info("OBP API 목록 조회 완료 (v2): count={}, size={}, elapsed={}ms",
+                    apis.size(), getFormattedJsonSize(json), elapsed);
+
+            return json;
+
+        } catch (Exception e) {
+            log.error("OBP API 목록 조회 실패 (v2)", e);
+            throw e;
+        }
+    }
+
+    /**
+     * OBP API 목록 조회 (providerCode 검증)
+     *
+     * @param providerCode Provider 코드 (KJB만 허용, 대소문자 무시)
+     * @param pretty       true면 JSON 들여쓰기 적용
+     * @return JSON Array
+     */
+    @RequestMapping(
+        value = "/api/apis.json",
+        params = "providerCode",
+        produces = JSON_CONTENT_TYPE
+    )
+    @ResponseBody
+    public String getApisByProvider(
+            @RequestParam("providerCode") String providerCode,
+            @RequestParam(value = "pretty", required = false) Boolean pretty) {
+
+        log.debug("OBP API 목록 조회 요청 (provider): providerCode={}, pretty={}", providerCode, pretty);
+        long startTime = System.currentTimeMillis();
+
+        // 1. providerCode 검증
+        ProviderCodeValidator.validateProviderCode(providerCode);
+
+        // 2. 데이터소스 설정
+        DataSourceContextHolder.setDataSourceType(
+                DataSourceTypeManager.getDataSourceType(DataSourceTypeManager.APIGW));
+
+        try {
+            List<ObpApiDTO> apis = obpApiService.findAllApis();
+
+            String json = toJson(apis, pretty);
+
+            long elapsed = System.currentTimeMillis() - startTime;
+            log.info("OBP API 목록 조회 완료 (provider): providerCode={}, count={}, size={}, elapsed={}ms",
+                    providerCode, apis.size(), getFormattedJsonSize(json), elapsed);
+
+            return json;
+
+        } catch (Exception e) {
+            log.error("OBP API 목록 조회 실패 (provider): providerCode={}", providerCode, e);
+            throw e;
+        }
+    }
+
+    /**
+     * OBP API 목록 조회 (기관별, v2)
+     *
+     * @param providerCode Provider 코드 (KJB만 허용, 대소문자 무시)
+     * @param partnerCode  기관코드 (OBP 파트너코드)
+     * @param pretty       true면 JSON 들여쓰기 적용
+     * @return JSON Array (기관 미존재 시 빈 배열)
+     */
+    @RequestMapping(
+        value = "/api/apis.json",
+        params = {"providerCode", "partnerCode"},
+        produces = JSON_CONTENT_TYPE
+    )
+    @ResponseBody
+    public String getApisByProviderAndPartner(
+            @RequestParam("providerCode") String providerCode,
+            @RequestParam("partnerCode") String partnerCode,
+            @RequestParam(value = "pretty", required = false) Boolean pretty) {
+
+        log.debug("OBP API 목록 조회 요청 (provider+partner): providerCode={}, partnerCode={}, pretty={}",
+                providerCode, partnerCode, pretty);
+        long startTime = System.currentTimeMillis();
+
+        // 1. providerCode 검증
+        ProviderCodeValidator.validateProviderCode(providerCode);
+
+        // 2. 데이터소스 설정
+        DataSourceContextHolder.setDataSourceType(
+                DataSourceTypeManager.getDataSourceType(DataSourceTypeManager.APIGW));
+
+        try {
+            // 3. 기관별 API 조회
+            List<ObpApiDTO> apis = obpApiService.findApisByOrgCode(partnerCode);
+
+            String json = toJson(apis, pretty);
+
+            long elapsed = System.currentTimeMillis() - startTime;
+            log.info("OBP API 목록 조회 완료 (provider+partner): providerCode={}, partnerCode={}, count={}, size={}, elapsed={}ms",
+                    providerCode, partnerCode, apis.size(), getFormattedJsonSize(json), elapsed);
+
+            return json;
+
+        } catch (Exception e) {
+            log.error("OBP API 목록 조회 실패 (provider+partner): providerCode={}, partnerCode={}",
+                    providerCode, partnerCode, e);
+            throw e;
+        }
+    }
+
+    /**
+     * 전체 API 목록 조회
+     *
+     * @param pretty true면 JSON 들여쓰기 적용
+     * @return JSON Array
+     * @deprecated Use {@link #getApisV2(Boolean)} or {@link #getApisByProvider(String, Boolean)} instead.
+     *             Will be removed in next major version.
+     */
+    @Deprecated
     @RequestMapping(
             value = "/kjb/apis.json",
             produces = JSON_CONTENT_TYPE
@@ -78,7 +206,11 @@ public class ObpApiController extends BaseRestController {
      * @param orgCode 기관코드 (OBP 파트너코드)
      * @param pretty true면 JSON 들여쓰기 적용
      * @return JSON Array (기관 미존재 시 빈 배열)
+     * @deprecated Use {@link #getApisByProviderAndPartner(String, String, Boolean)} instead.
+     *             Migrate to /api/apis.json?providerCode=KJB&partnerCode={orgCode}
+     *             Will be removed in next major version.
      */
+    @Deprecated
     @RequestMapping(
             value = "/kjb/{orgCode}/apis.json",
             produces = JSON_CONTENT_TYPE
diff --git a/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpGwMetricController.java b/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpGwMetricController.java
index 81dc55b..4efd759 100644
--- a/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpGwMetricController.java
+++ b/src/main/java/com/eactive/eai/rms/onl/apim/obp/ObpGwMetricController.java
@@ -1,5 +1,8 @@
 package com.eactive.eai.rms.onl.apim.obp;
 
+import com.eactive.eai.rms.onl.common.exception.BizException;
+import com.eactive.eai.rms.common.datasource.DataSourceContextHolder;
+import com.eactive.eai.rms.common.datasource.DataSourceTypeManager;
 import com.eactive.eai.rms.onl.apim.common.BaseRestController;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -11,6 +14,7 @@ import org.springframework.web.bind.annotation.ResponseBody;
 
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
 import java.util.List;
 
 /**
@@ -25,7 +29,10 @@ public class ObpGwMetricController extends BaseRestController {
     private static final Logger log = LoggerFactory.getLogger(ObpGwMetricController.class);
 
     private static final DateTimeFormatter PATH_FORMATTER =
-            DateTimeFormatter.ofPattern("yyyy-MM-dd_HH:mm:ss"); 
+            DateTimeFormatter.ofPattern("yyyy-MM-dd_HH:mm:ss");
+
+    private static final DateTimeFormatter QUERY_PARAM_FORMATTER =
+            DateTimeFormatter.ofPattern("yyyyMMddHHmmss"); 
 
     private final ObpGwMetricManService obpGwMetricManService;
 
@@ -33,13 +40,79 @@ public class ObpGwMetricController extends BaseRestController {
         this.obpGwMetricManService = obpGwMetricManService;
     }
 
+    /**
+     * 특정 시간대 이후의 GwMetric 데이터 조회 (v2)
+     *
+     * @param timeslice    조회 시작 시간대 (형식: yyyyMMddHHmmss)
+     * @param providerCode Provider 코드 (KJB만 허용, 대소문자 무시)
+     * @param pretty       true면 JSON 들여쓰기 적용
+     * @return JSON Array (해당 시간대 이후의 모든 지표)
+     */
+    @RequestMapping(
+        value = "/api/metrics/after-timeslice.json",
+        produces = JSON_CONTENT_TYPE
+    )
+    @ResponseBody
+    public String getGwMetricsAfterTimesliceV2(
+            @RequestParam("timeslice") String timeslice,
+            @RequestParam("providerCode") String providerCode,
+            @RequestParam(value = "pretty", required = false) Boolean pretty) {
+
+        log.debug("GwMetric after-timeslice 조회 요청 (v2): timeslice={}, providerCode={}, pretty={}",
+                timeslice, providerCode, pretty);
+        long startTime = System.currentTimeMillis();
+
+        try {
+            // 1. providerCode 검증
+            ProviderCodeValidator.validateProviderCode(providerCode);
+
+            // 2. timeslice 파싱 (새 형식: yyyyMMddHHmmss)
+            LocalDateTime targetTime;
+            try {
+                targetTime = LocalDateTime.parse(timeslice, QUERY_PARAM_FORMATTER);
+            } catch (DateTimeParseException e) {
+                throw new BizException(
+                    String.format("Invalid timeslice format. Expected 'yyyyMMddHHmmss', got: %s", timeslice), e);
+            }
+
+            // 3. 시간을 정각으로 truncate
+            LocalDateTime timesliceHour = targetTime.withMinute(0).withSecond(0).withNano(0);
+
+            // 4. 데이터소스 설정 (MONITORING)
+            DataSourceContextHolder.setDataSourceType(
+                    DataSourceTypeManager.getDataSourceType(DataSourceTypeManager.MONITORING));
+
+            // 5. 데이터 조회
+            List<ObpGwMetricAfterDTO> metrics = obpGwMetricManService.findByTimesliceAfter(timesliceHour);
+
+            // 6. JSON 변환
+            String json = toJson(metrics, pretty);
+
+            long elapsed = System.currentTimeMillis() - startTime;
+            log.info("GwMetric after-timeslice 조회 완료 (v2): timeslice={}, providerCode={}, count={}, size={}, elapsed={}ms",
+                    timeslice, providerCode, metrics.size(), getFormattedJsonSize(json), elapsed);
+
+            return json;
+
+        } catch (BizException e) {
+            throw e;
+        } catch (Exception e) {
+            log.error("GwMetric after-timeslice 조회 실패 (v2): timeslice={}, providerCode={}",
+                    timeslice, providerCode, e);
+            throw new BizException("Failed to retrieve metrics: " + e.getMessage(), e);
+        }
+    }
+
     /**
      * 특정 시간대의 GwMetric 데이터 조회
      *
      * @param datetime 조회 시간대 (형식: yyyy-MM-dd_HH:mm:ss)
      * @param pretty   true면 JSON 들여쓰기 적용
      * @return JSON Array
+     * @deprecated Use {@link #getGwMetricsAfterTimesliceV2(String, String, Boolean)} instead.
+     *             Will be removed in next major version.
      */
+    @Deprecated
     @RequestMapping(
             value = "/kjb/gw-metrics/{datetime}.json",
             produces = JSON_CONTENT_TYPE
@@ -80,7 +153,11 @@ public class ObpGwMetricController extends BaseRestController {
      * @param datetime 조회 시작 시간대 (형식: yyyy-MM-dd_HH:mm:ss)
      * @param pretty   true면 JSON 들여쓰기 적용
      * @return JSON Array (해당 시간대 이후의 모든 지표)
+     * @deprecated Use {@link #getGwMetricsAfterTimesliceV2(String, String, Boolean)} instead.
+     *             Migrate to /api/metrics/after-timeslice.json?timeslice={yyyyMMddHHmmss}&providerCode=KJB
+     *             Will be removed in next major version.
      */
+    @Deprecated
     @RequestMapping(
             value = "/kjb/gw-metrics/after-timeslice/{datetime}.json",
             produces = JSON_CONTENT_TYPE