diff --git a/src/main/java/com/eactive/eai/adapter/http/dynamic/filter/ApiAuthFilter.java b/src/main/java/com/eactive/eai/adapter/http/dynamic/filter/ApiAuthFilter.java
index 569b64b..2babcee 100644
--- a/src/main/java/com/eactive/eai/adapter/http/dynamic/filter/ApiAuthFilter.java
+++ b/src/main/java/com/eactive/eai/adapter/http/dynamic/filter/ApiAuthFilter.java
@@ -109,6 +109,7 @@ public class ApiAuthFilter implements HttpAdapterFilter {
 			return message;
 		}
 
+		boolean isPassScope = false; 
 		switch (eaiMessage.getAuthType()){
 			case "oauth":
 				try {
@@ -127,10 +128,25 @@ public class ApiAuthFilter implements HttpAdapterFilter {
 
 					OAuth2Manager manager = OAuth2Manager.getInstance();
 					HashSet<String> scopeSet = manager.getApiScopeMap().get(apiId);
-					if (!verifyScope(scopeSet, signedJWT)) {
+
+					String[] scopeArr = signedJWT.getJWTClaimsSet().getStringArrayClaim(PAYLOAD_PARAM_NAME_SCOPE);
+					if (scopeArr == null || scopeArr.length == 0) {
 						throw new JwtAuthException(ERROR_AUTHORIZATION_FAIL,
 								String.format("Insufficient [Scope](Allowed Scope=%s)", scopeSet.toString()));
 					}
+					
+					for (String scope : scopeArr) {
+						if (StringUtils.equals(scope, "oob") || StringUtils.equals(scope, "public")) {
+							isPassScope = true;
+						}
+					}
+					
+					if (!isPassScope) {
+						if (!verifyScope(scopeSet, signedJWT)) {
+							throw new JwtAuthException(ERROR_AUTHORIZATION_FAIL,
+									String.format("Insufficient [Scope](Allowed Scope=%s)", scopeSet.toString()));
+						}
+					}
 
 					// header 값으로 전송된 clientId와 토큰 소유 clientId check
 					if (!verifyClientId(prop, signedJWT)) {
@@ -144,26 +160,6 @@ public class ApiAuthFilter implements HttpAdapterFilter {
 					throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Token invalid");
 				}
 				break;
-//			case "bearer":
-//				try {
-//					String token = ApiAuthFilter.extractJWTToken(request);
-//			    	BearerTokenInfo CATokenInfo = CATokenStore.get(token);
-//
-//			    	if (CATokenInfo == null) {
-//						throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Token invalid");
-//			    	}
-//			    	
-//			    	if (CATokenInfo.isExpired()) {
-//						throw new JwtAuthException(ERROR_TOKEN_EXPIRED, "Access token expired");
-//			    	}
-//				} catch (JwtAuthException e) {
-//					logger.debug(e.getMessage());
-//					throw e;
-//				} catch (Exception e) {
-//					logger.error(e.getMessage());
-//					throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Token invalid");
-//				}
-//				break;
 			case "api_key":
 				String apiKeyName = PropManager.getInstance().getProperty("ApiConfig", "api.key.name", "x-api-key");
 				String apiKey = request.getHeader(apiKeyName);
@@ -171,19 +167,22 @@ public class ApiAuthFilter implements HttpAdapterFilter {
 					throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Invalid or missing API key \""+apiKeyName+"\" in Http Header");
 				}
 				prop.setProperty(HttpAdapterServiceSupport.PROPERTIES_NAME_CLIENT_ID, apiKey);
+				isPassScope = true;
 				break;
 			case "none":
 				return message;
 		}
 
-		String clientId = prop.getProperty(HttpAdapterServiceSupport.PROPERTIES_NAME_CLIENT_ID);
-		ClientVO clientVO = OAuth2Manager.getInstance().getClientVO(clientId);
-		if(clientVO == null){
-			throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Unregistered APP");
-		}
+		if (isPassScope) {
+			String clientId = prop.getProperty(HttpAdapterServiceSupport.PROPERTIES_NAME_CLIENT_ID);
+			ClientVO clientVO = OAuth2Manager.getInstance().getClientVO(clientId);
+			if(clientVO == null){
+				throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Unregistered APP");
+			}
 
-		if(clientVO.getApiMap().containsKey(eaiSvcCd) == false){
-			throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Unregistered API ["+eaiSvcCd+"] in ["+clientVO.getClientName()+"] APP");
+			if(clientVO.getApiMap().containsKey(eaiSvcCd) == false){
+				throw new JwtAuthException(ERROR_AUTHENTICATION_FAIL, "Unregistered API ["+eaiSvcCd+"] in ["+clientVO.getClientName()+"] APP");
+			}
 		}
 
 		return message;