diff --git a/src/main/java/itn/let/uat/uia/web/EgovMypageRESTAPIController.java b/src/main/java/itn/let/uat/uia/web/EgovMypageRESTAPIController.java
index 668c64c7..67425bdc 100644
--- a/src/main/java/itn/let/uat/uia/web/EgovMypageRESTAPIController.java
+++ b/src/main/java/itn/let/uat/uia/web/EgovMypageRESTAPIController.java
@@ -247,7 +247,7 @@ public class EgovMypageRESTAPIController{
 		}
 		model.addAttribute("loginVO", loginVO);
 		
-		return "web/api/msg/apiSpec";
+		return "web/api/apiSpec";
 	}
 	
 	/**
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/apiSpec.jsp b/src/main/webapp/WEB-INF/jsp/web/api/apiSpec.jsp
new file mode 100644
index 00000000..24087cb9
--- /dev/null
+++ b/src/main/webapp/WEB-INF/jsp/web/api/apiSpec.jsp
@@ -0,0 +1,149 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
+<%@ taglib prefix="ui" uri="http://egovframework.gov/ctl/ui"%>
+<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
+<script language=javascript>
+$(document).ready(function(){
+	
+});
+
+</script>
+<style>
+
+	.padding_add > p
+	{
+		padding-left: 30px;
+		padding-bottom: 8px;
+	}
+
+	.padding_add > div > p
+	{
+		padding-left: 60px;
+		padding-bottom: 8px;
+	}
+
+
+
+</style>
+<!-- content 영역 -->
+<div class="inner">
+	<!-- send top -->
+	<div class="send_top">
+	
+		<c:import url="./top_tepMenu.jsp" /><!--// tab button -->
+		
+		<!-- tab button -->
+		<div class="api_guide_cont current">
+			<div class="heading">
+				<h2>REST API 개발 가이드</h2>
+			</div>
+			
+			<!--사용안내 내용-->
+			<div class="pay_tab_wrap">
+				<ul class="tabType1">
+					<li class="tab active"><button type="button" onclick="TabType5(this,'1');TabType2(this,'1');$('.list_tab li:nth-child(1)').addClass('active').siblings().removeClass('active');">문자</button></li>
+					<li class="tab"><button type="button" onclick="TabType5(this,'2');TabType2(this,'6');$('.list_tab li:nth-child(1)').addClass('active').siblings().removeClass('active');">카카오톡</button></li>
+				</ul>
+			</div>
+			
+			<div class="api_guide current" id="tab5_1">
+				<div class="list_tab_wrap2 type3">
+					<!-- tab button -->
+					<ul class="list_tab">
+						<li class="tab active"><button type="button" onclick="TabType1(this,'1')">문자보내기</button></li>
+						<li class="tab"><button type="button" onclick="TabType1(this,'2')" id="btnEstimate">문자보내기(대량)</button></li>
+						<li class="tab"><button type="button" onclick="TabType1(this,'3')" id="btnEstimate3">전송내역조회</button></li>
+						<li class="tab"><button type="button" onclick="TabType1(this,'4')" id="btnEstimate4">전송결과조회(상세)</button></li>
+						<li class="tab"><button type="button" onclick="TabType1(this,'5')" id="btnEstimate5">발송가능건수</button></li>
+					</ul><!--// tab button -->
+				</div>
+	
+				<!-- 문자보내기 -->
+				<!-- 문자보내기 -->
+				<!-- 문자보내기 -->
+				<div class="fee_cont current" id="tab1_1">
+					<c:import url="./msg/apiSpec_tab1.jsp" />
+				</div>
+	
+				<!-- 문자보내기(대량) -->
+				<!-- 문자보내기(대량) -->
+				<!-- 문자보내기(대량) -->
+				<div class="fee_cont" id="tab1_2">
+					<c:import url="./msg/apiSpec_tab2.jsp" />
+				</div>
+				
+				<!-- 전송내역조회 -->
+				<div class="fee_cont" id="tab1_3">
+					<c:import url="./msg/apiSpec_tab3.jsp" />
+				</div>
+				<!-- 전송결과조회(상세) -->
+				<div class="fee_cont" id="tab1_4">
+					<c:import url="./msg/apiSpec_tab4.jsp" />
+				</div>
+				<!-- 발송가능건수 -->
+				<div class="fee_cont" id="tab1_5">
+					<c:import url="./msg/apiSpec_tab5.jsp" />
+				</div>
+			</div>
+			
+			
+			<div class="api_guide current" id="tab5_2">
+				<div class="list_tab_wrap2 type3">
+					<!-- tab button -->
+					<ul class="list_tab">
+						
+						<li class="tab active"><button type="button" onclick="TabType2(this,'6');">채널 ID 조회</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'7');">템플릿 ID 조회</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'8');">템플릿상세조회</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'9');">단건보내기</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'10');">대량보내기</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'11');">전송내역조회</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'12');">전송내역조회(상세)</button></li>
+						<li class="tab"><button type="button" onclick="TabType2(this,'13');">발송가능건수</button></li>
+						
+					</ul><!--// tab button -->
+				</div>
+	
+				<!-- 채널 ID 조회 -->
+				<div class="api_guide_con" id="tab2_6">
+					<c:import url="./at/apiSpec_tab1.jsp" />
+				</div>
+	
+				<!-- 템플릿 ID 조회 -->
+				<div class="api_guide_con" id="tab2_7">
+					<c:import url="./at/apiSpec_tab2.jsp" />
+				</div>
+				
+				<!-- 템플릿상세조회 -->
+				<div class="api_guide_con" id="tab2_8">
+					<c:import url="./at/apiSpec_tab3.jsp" />
+				</div>
+				
+				<!-- 단건보내기 -->
+				<div class="api_guide_con" id="tab2_9">
+					<c:import url="./at/apiSpec_tab4.jsp" />
+				</div>
+
+				<!-- 대량보내기 -->
+				<div class="api_guide_con" id="tab2_10">
+					<c:import url="./at/apiSpec_tab5.jsp" />
+				</div>
+
+				<!-- 전송내역조회 -->
+				<div class="api_guide_con" id="tab2_11">
+					<c:import url="./at/apiSpec_tab6.jsp" />
+				</div>
+
+				<!-- 전송내역조회(상세) -->
+				<div class="api_guide_con" id="tab2_12">
+					<c:import url="./at/apiSpec_tab7.jsp" />
+				</div>
+				
+				<!-- 발송가능건수 -->
+				<div class="api_guide_con" id="tab2_13">
+					<c:import url="./at/apiSpec_tab8.jsp" />
+				</div>
+			</div>
+		</div>
+	</div><!--// send top -->
+</div>
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec.jsp b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec.jsp
deleted file mode 100644
index 33381d46..00000000
--- a/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec.jsp
+++ /dev/null
@@ -1,82 +0,0 @@
-<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
-<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
-<%@ taglib prefix="ui" uri="http://egovframework.gov/ctl/ui"%>
-<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
-<script language=javascript>
-$(document).ready(function(){
-	
-});
-
-</script>
-<style>
-
-	.padding_add > p
-	{
-		padding-left: 30px;
-		padding-bottom: 8px;
-	}
-
-	.padding_add > div > p
-	{
-		padding-left: 60px;
-		padding-bottom: 8px;
-	}
-
-
-
-</style>
-<!-- content 영역 -->
-<div class="inner">
-	<!-- send top -->
-	<div class="send_top">
-	
-		<c:import url="../top_tepMenu.jsp" /><!--// tab button -->
-		
-		<!-- tab button -->
-		<div class="api_guide_cont current" id="tab5_1">
-			<div class="heading">
-				<h2>REST API 설명</h2>
-			</div>
-			<div class="pay_tab_wrap">
-				<!-- tab button -->
-				<ul class="tabType1">
-					<li class="tab active"><button type="button" onclick="TabType1(this,'1')">채널ID조회</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'2')">템플릿ID조회</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'3')">템플릿상세조회</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'4')">단건보내기</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'5')">대량보내기</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'6')">전송내역조회</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'7')">전송결과조회(상세)</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'8')">발송가능건수</button></li>
-				</ul><!--// tab button -->
-			</div>
-
-			<!-- 문자보내기 -->
-			<!-- 문자보내기 -->
-			<!-- 문자보내기 -->
-			<div class="fee_cont current" id="tab1_1">
-				<c:import url="./apiSpec_tab1.jsp" />
-			</div>
-
-			<!-- 문자보내기(대량) -->
-			<!-- 문자보내기(대량) -->
-			<!-- 문자보내기(대량) -->
-			<div class="fee_cont" id="tab1_2">
-				<c:import url="./apiSpec_tab2.jsp" />
-			</div>
-			
-			<!-- 전송내역조회 -->
-			<div class="fee_cont" id="tab1_3">
-				<c:import url="./apiSpec_tab3.jsp" />
-			</div>
-			<!-- 전송결과조회(상세) -->
-			<div class="fee_cont" id="tab1_4">
-				<c:import url="./apiSpec_tab4.jsp" />
-			</div>
-			<!-- 발송가능건수 -->
-			<div class="fee_cont" id="tab1_5">
-				<c:import url="./apiSpec_tab5.jsp" />
-			</div>
-		</div>
-	</div><!--// send top -->
-</div>
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab6.jsp b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab6.jsp
new file mode 100644
index 00000000..df406dc3
--- /dev/null
+++ b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab6.jsp
@@ -0,0 +1,195 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
+			
+		  <ul class="info">
+                            <li>- 보유캐시로 발송 가능한 문자의 건수를 단문(SMS), 장문(LMS), 그림(MMS)별로 각각 확인할 수 있습니다.</li>
+                            <li>- 위 문자유형별 발송 가능건수는 개인별로 적용된 단가를 기준으로 산출되며, "첫결제 이벤트"는 적용되지 않습니다.</li>
+                        </ul>
+
+                        <div class="re_cont">
+                            <!--Request-->
+                            <div class="req_title">Request</div>
+                            <div class="box">
+                                <div class="text">
+                                    <h4>Request</h4>
+                                    <table>
+                                        <caption>API Request Http Method, 프로토콜, HOST, Service Port 정보 테이블</caption>
+                                        <colgroup>
+                                            <col style="width:20%;">
+                                            <col style="width:80%;">
+                                        </colgroup>
+                                        <tr>
+                                            <th>Http Method</th>
+                                            <td>POST</td>
+                                        </tr>
+                                        <tr>
+                                            <th>프로토콜</th>
+                                            <td>HTTP/1.1</td>
+                                        </tr>
+                                        <tr>
+                                            <th>HOST</th>
+                                            <td>api.munjaon.co.kr</td>
+                                        </tr>
+                                        <tr>
+                                            <th>Service Port</th>
+                                            <td>443</td>
+                                        </tr>
+                                    </table>
+                                </div>                                
+                            </div>
+                            <div class="type_table">
+                                <table>
+                                    <caption>발송가능 건수 API Request 키 종류 및 설명, 타입, 필수 여부 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:45%;">
+                                        <col style="width:25%">
+                                        <col style="width:10%">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                            <th>필수</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">mberId</span></td>
+                                            <td>사용자 ID</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">accessKey</span></td>
+                                            <td>인증용 API Key</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>                                        
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ HTTPS 프로토콜을 사용하여 POST로 요청합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title">[Example]</div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"mberId"</span>:"String"</p>
+                                        <p>,<span>"accessKey"</span>:"String"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Request-->
+                            <!-- Response-->
+                            <div class="res_title">Response</div>
+                            <div class="type_table">                                
+                                <table>
+                                    <caption>발송가능 건수 API Response 키 종류 및 설명, 타입 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:60%;">
+                                        <col style="width:20%;">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">resultCode</span></td>
+                                            <td>성공 여부("0" 아니면 실패)</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">data</span></td>
+                                            <td>결과값 객체(성공 : 데이터, 실패 : 메시지)</td>
+                                            <td>Object</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longPrice</span></td>
+                                            <td>장문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longSendPsbltEa</span></td>
+                                            <td>장문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].mberMoney</span></td>
+                                            <td>현재 보유 금액</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].message</span></td>
+                                            <td>문자</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].picturePrice</span></td>
+                                            <td>그림문자 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].pictureSendPsbltEa</span></td>
+                                            <td>그림문자 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortPrice</span></td>
+                                            <td>단문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortSendPsbltEa</span></td>
+                                            <td>단문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ JSON 객체로 응답합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_success">O 성공 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"0"</p>
+                                        <p>,<span>"data"</span>&#65371;</p>
+                                        <div class="indent_t1">
+                                            <p><span>"longPrice"</span>:"50"</p> 
+                                            <p>,<span>"longSendPsbltEa"</span>:"19651"</p>
+                                            <p>,<span>"mberMoney"</span>:"982586.7"</p>
+                                            <p>,<span>"message"</span>:null</p>
+                                            <p>,<span>"picturePrice"</span>:"90"</p>    
+                                            <p>,<span>"pictureSendPsbltEa"</span>:"10917"</p>
+                                            <p>,<span>"shortPrice"</span>:"18"</p>
+                                            <p>,<span>"shortSendPsbltEa"</span>:"54588"</p>
+                                        </div>
+                                        <p>&#65373;</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_fail">X 실패 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"5099"</p>
+                                        <p>,<span>"data"</span>:"기타 시스템 오류"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Response-->
+                        </div>         
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab7.jsp b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab7.jsp
new file mode 100644
index 00000000..df406dc3
--- /dev/null
+++ b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab7.jsp
@@ -0,0 +1,195 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
+			
+		  <ul class="info">
+                            <li>- 보유캐시로 발송 가능한 문자의 건수를 단문(SMS), 장문(LMS), 그림(MMS)별로 각각 확인할 수 있습니다.</li>
+                            <li>- 위 문자유형별 발송 가능건수는 개인별로 적용된 단가를 기준으로 산출되며, "첫결제 이벤트"는 적용되지 않습니다.</li>
+                        </ul>
+
+                        <div class="re_cont">
+                            <!--Request-->
+                            <div class="req_title">Request</div>
+                            <div class="box">
+                                <div class="text">
+                                    <h4>Request</h4>
+                                    <table>
+                                        <caption>API Request Http Method, 프로토콜, HOST, Service Port 정보 테이블</caption>
+                                        <colgroup>
+                                            <col style="width:20%;">
+                                            <col style="width:80%;">
+                                        </colgroup>
+                                        <tr>
+                                            <th>Http Method</th>
+                                            <td>POST</td>
+                                        </tr>
+                                        <tr>
+                                            <th>프로토콜</th>
+                                            <td>HTTP/1.1</td>
+                                        </tr>
+                                        <tr>
+                                            <th>HOST</th>
+                                            <td>api.munjaon.co.kr</td>
+                                        </tr>
+                                        <tr>
+                                            <th>Service Port</th>
+                                            <td>443</td>
+                                        </tr>
+                                    </table>
+                                </div>                                
+                            </div>
+                            <div class="type_table">
+                                <table>
+                                    <caption>발송가능 건수 API Request 키 종류 및 설명, 타입, 필수 여부 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:45%;">
+                                        <col style="width:25%">
+                                        <col style="width:10%">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                            <th>필수</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">mberId</span></td>
+                                            <td>사용자 ID</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">accessKey</span></td>
+                                            <td>인증용 API Key</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>                                        
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ HTTPS 프로토콜을 사용하여 POST로 요청합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title">[Example]</div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"mberId"</span>:"String"</p>
+                                        <p>,<span>"accessKey"</span>:"String"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Request-->
+                            <!-- Response-->
+                            <div class="res_title">Response</div>
+                            <div class="type_table">                                
+                                <table>
+                                    <caption>발송가능 건수 API Response 키 종류 및 설명, 타입 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:60%;">
+                                        <col style="width:20%;">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">resultCode</span></td>
+                                            <td>성공 여부("0" 아니면 실패)</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">data</span></td>
+                                            <td>결과값 객체(성공 : 데이터, 실패 : 메시지)</td>
+                                            <td>Object</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longPrice</span></td>
+                                            <td>장문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longSendPsbltEa</span></td>
+                                            <td>장문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].mberMoney</span></td>
+                                            <td>현재 보유 금액</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].message</span></td>
+                                            <td>문자</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].picturePrice</span></td>
+                                            <td>그림문자 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].pictureSendPsbltEa</span></td>
+                                            <td>그림문자 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortPrice</span></td>
+                                            <td>단문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortSendPsbltEa</span></td>
+                                            <td>단문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ JSON 객체로 응답합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_success">O 성공 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"0"</p>
+                                        <p>,<span>"data"</span>&#65371;</p>
+                                        <div class="indent_t1">
+                                            <p><span>"longPrice"</span>:"50"</p> 
+                                            <p>,<span>"longSendPsbltEa"</span>:"19651"</p>
+                                            <p>,<span>"mberMoney"</span>:"982586.7"</p>
+                                            <p>,<span>"message"</span>:null</p>
+                                            <p>,<span>"picturePrice"</span>:"90"</p>    
+                                            <p>,<span>"pictureSendPsbltEa"</span>:"10917"</p>
+                                            <p>,<span>"shortPrice"</span>:"18"</p>
+                                            <p>,<span>"shortSendPsbltEa"</span>:"54588"</p>
+                                        </div>
+                                        <p>&#65373;</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_fail">X 실패 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"5099"</p>
+                                        <p>,<span>"data"</span>:"기타 시스템 오류"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Response-->
+                        </div>         
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab8.jsp b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab8.jsp
new file mode 100644
index 00000000..df406dc3
--- /dev/null
+++ b/src/main/webapp/WEB-INF/jsp/web/api/at/apiSpec_tab8.jsp
@@ -0,0 +1,195 @@
+<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
+			
+		  <ul class="info">
+                            <li>- 보유캐시로 발송 가능한 문자의 건수를 단문(SMS), 장문(LMS), 그림(MMS)별로 각각 확인할 수 있습니다.</li>
+                            <li>- 위 문자유형별 발송 가능건수는 개인별로 적용된 단가를 기준으로 산출되며, "첫결제 이벤트"는 적용되지 않습니다.</li>
+                        </ul>
+
+                        <div class="re_cont">
+                            <!--Request-->
+                            <div class="req_title">Request</div>
+                            <div class="box">
+                                <div class="text">
+                                    <h4>Request</h4>
+                                    <table>
+                                        <caption>API Request Http Method, 프로토콜, HOST, Service Port 정보 테이블</caption>
+                                        <colgroup>
+                                            <col style="width:20%;">
+                                            <col style="width:80%;">
+                                        </colgroup>
+                                        <tr>
+                                            <th>Http Method</th>
+                                            <td>POST</td>
+                                        </tr>
+                                        <tr>
+                                            <th>프로토콜</th>
+                                            <td>HTTP/1.1</td>
+                                        </tr>
+                                        <tr>
+                                            <th>HOST</th>
+                                            <td>api.munjaon.co.kr</td>
+                                        </tr>
+                                        <tr>
+                                            <th>Service Port</th>
+                                            <td>443</td>
+                                        </tr>
+                                    </table>
+                                </div>                                
+                            </div>
+                            <div class="type_table">
+                                <table>
+                                    <caption>발송가능 건수 API Request 키 종류 및 설명, 타입, 필수 여부 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:45%;">
+                                        <col style="width:25%">
+                                        <col style="width:10%">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                            <th>필수</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">mberId</span></td>
+                                            <td>사용자 ID</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">accessKey</span></td>
+                                            <td>인증용 API Key</td>
+                                            <td>String</td>
+                                            <td><span class="select_o">O</span></td>
+                                        </tr>                                        
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ HTTPS 프로토콜을 사용하여 POST로 요청합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title">[Example]</div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"mberId"</span>:"String"</p>
+                                        <p>,<span>"accessKey"</span>:"String"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Request-->
+                            <!-- Response-->
+                            <div class="res_title">Response</div>
+                            <div class="type_table">                                
+                                <table>
+                                    <caption>발송가능 건수 API Response 키 종류 및 설명, 타입 테이블</caption>
+                                    <colgroup>
+                                        <col style="width:20%;">
+                                        <col style="width:60%;">
+                                        <col style="width:20%;">
+                                    </colgroup>
+                                    <thead>
+                                        <tr>
+                                            <th>키</th>
+                                            <th>설명</th>
+                                            <th>타입</th>
+                                        </tr>
+                                    </thead>
+                                    <tbody>
+                                        <tr>
+                                            <td><span class="font_b">resultCode</span></td>
+                                            <td>성공 여부("0" 아니면 실패)</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">data</span></td>
+                                            <td>결과값 객체(성공 : 데이터, 실패 : 메시지)</td>
+                                            <td>Object</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longPrice</span></td>
+                                            <td>장문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].longSendPsbltEa</span></td>
+                                            <td>장문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].mberMoney</span></td>
+                                            <td>현재 보유 금액</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].message</span></td>
+                                            <td>문자</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].picturePrice</span></td>
+                                            <td>그림문자 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].pictureSendPsbltEa</span></td>
+                                            <td>그림문자 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortPrice</span></td>
+                                            <td>단문 단가</td>
+                                            <td>String</td>
+                                        </tr>
+                                        <tr>
+                                            <td><span class="font_b">[data].shortSendPsbltEa</span></td>
+                                            <td>단문 발송 가능 건수</td>
+                                            <td>String</td>
+                                        </tr>
+                                    </tbody>                                    
+                                </table>
+                                <div class="table_info">
+                                    <p>※ JSON 객체로 응답합니다.</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_success">O 성공 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"0"</p>
+                                        <p>,<span>"data"</span>&#65371;</p>
+                                        <div class="indent_t1">
+                                            <p><span>"longPrice"</span>:"50"</p> 
+                                            <p>,<span>"longSendPsbltEa"</span>:"19651"</p>
+                                            <p>,<span>"mberMoney"</span>:"982586.7"</p>
+                                            <p>,<span>"message"</span>:null</p>
+                                            <p>,<span>"picturePrice"</span>:"90"</p>    
+                                            <p>,<span>"pictureSendPsbltEa"</span>:"10917"</p>
+                                            <p>,<span>"shortPrice"</span>:"18"</p>
+                                            <p>,<span>"shortSendPsbltEa"</span>:"54588"</p>
+                                        </div>
+                                        <p>&#65373;</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <div class="box">
+                                <div class="title_t1"><span class="ex">[Example]</span><span class="ex_fail">X 실패 예시</span></div>
+                                <div class="code_view">
+                                    <p>&#65371;</p>
+                                    <div class="indent">
+                                        <p><span>"resultCode"</span>:"5099"</p>
+                                        <p>,<span>"data"</span>:"기타 시스템 오류"</p>
+                                    </div>
+                                    <p class="l_code">&#65373;</p>
+                                </div>
+                            </div>
+                            <!--// Response-->
+                        </div>         
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/msg/apiSpec.jsp b/src/main/webapp/WEB-INF/jsp/web/api/msg/apiSpec.jsp
deleted file mode 100644
index 9bf7db27..00000000
--- a/src/main/webapp/WEB-INF/jsp/web/api/msg/apiSpec.jsp
+++ /dev/null
@@ -1,79 +0,0 @@
-<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
-<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
-<%@ taglib prefix="ui" uri="http://egovframework.gov/ctl/ui"%>
-<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
-<script language=javascript>
-$(document).ready(function(){
-	
-});
-
-</script>
-<style>
-
-	.padding_add > p
-	{
-		padding-left: 30px;
-		padding-bottom: 8px;
-	}
-
-	.padding_add > div > p
-	{
-		padding-left: 60px;
-		padding-bottom: 8px;
-	}
-
-
-
-</style>
-<!-- content 영역 -->
-<div class="inner">
-	<!-- send top -->
-	<div class="send_top">
-	
-		<c:import url="../top_tepMenu.jsp" /><!--// tab button -->
-		
-		<!-- tab button -->
-		<div class="api_guide_cont current" id="tab5_1">
-			<div class="heading">
-				<h2>REST API 설명</h2>
-			</div>
-			<div class="pay_tab_wrap">
-				<!-- tab button -->
-				<ul class="tabType1">
-					<li class="tab active"><button type="button" onclick="TabType1(this,'1')">문자보내기</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'2')" id="btnEstimate">문자보내기(대량)</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'3')" id="btnEstimate3">전송내역조회</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'4')" id="btnEstimate4">전송결과조회(상세)</button></li>
-					<li class="tab"><button type="button" onclick="TabType1(this,'5')" id="btnEstimate5">발송가능건수</button></li>
-				</ul><!--// tab button -->
-			</div>
-
-			<!-- 문자보내기 -->
-			<!-- 문자보내기 -->
-			<!-- 문자보내기 -->
-			<div class="fee_cont current" id="tab1_1">
-				<c:import url="./apiSpec_tab1.jsp" />
-			</div>
-
-			<!-- 문자보내기(대량) -->
-			<!-- 문자보내기(대량) -->
-			<!-- 문자보내기(대량) -->
-			<div class="fee_cont" id="tab1_2">
-				<c:import url="./apiSpec_tab2.jsp" />
-			</div>
-			
-			<!-- 전송내역조회 -->
-			<div class="fee_cont" id="tab1_3">
-				<c:import url="./apiSpec_tab3.jsp" />
-			</div>
-			<!-- 전송결과조회(상세) -->
-			<div class="fee_cont" id="tab1_4">
-				<c:import url="./apiSpec_tab4.jsp" />
-			</div>
-			<!-- 발송가능건수 -->
-			<div class="fee_cont" id="tab1_5">
-				<c:import url="./apiSpec_tab5.jsp" />
-			</div>
-		</div>
-	</div><!--// send top -->
-</div>
diff --git a/src/main/webapp/WEB-INF/jsp/web/api/top_tepMenu.jsp b/src/main/webapp/WEB-INF/jsp/web/api/top_tepMenu.jsp
index 951d4c82..69adc193 100644
--- a/src/main/webapp/WEB-INF/jsp/web/api/top_tepMenu.jsp
+++ b/src/main/webapp/WEB-INF/jsp/web/api/top_tepMenu.jsp
@@ -98,8 +98,8 @@ function customPopup(){
 		
 		<ul class="tabType4">
 			<li class="tab"><button type="button" class="goPage" id="intrdView" data-info="<c:url value="/web/api/intrdView.do" />">문자연동(API)소개</button></li>
-			<li class="tab"><button type="button" class="goPage" id="apiSpec" data-info="<c:url value="/web/api/apiSpec.do" />">문자 사용안내</button></li>
-			<li class="tab"><button type="button" class="goPage" id="apiAtSpec" data-info="<c:url value="/web/api/apiAtSpec.do" />">알림톡 사용안내</button></li>
+			<li class="tab"><button type="button" class="goPage" id="apiSpec" data-info="<c:url value="/web/api/apiSpec.do" />">개발 가이드</button></li>
+<%-- 			<li class="tab"><button type="button" class="goPage" id="apiAtSpec" data-info="<c:url value="/web/api/apiAtSpec.do" />">알림톡 사용안내</button></li> --%>
 			<li class="tab"><button type="button" class="goPage" id="examDown" data-info="<c:url value="/web/api/examDown.do" />">예제 다운로드</button></li>
 			<li class="tab"><button type="button" class="goPage" id="appMgmt" data-info="<c:url value="/web/api/appMgmt.do" />" >신청/관리</button></li>
 	    </ul>