diff --git a/internal/api/handler.go b/internal/api/handler.go
index bba5433c..f8cf7c94 100644
--- a/internal/api/handler.go
+++ b/internal/api/handler.go
@@ -87,7 +87,7 @@ func NewHandler() *gin.Engine {
 		cert := v1.Group("/cert")
 		{
 			cert.GET("/info", certApi.Info)
-			cert.POST("/renew", certApi.Renew)
+			cert.GET("/renew", certApi.Renew)
 		}
 
 		agent := v1.Group("/agent")
diff --git a/internal/api/v1/cert/info.go b/internal/api/v1/cert/info.go
index bc29542c..2f5ede63 100644
--- a/internal/api/v1/cert/info.go
+++ b/internal/api/v1/cert/info.go
@@ -22,7 +22,6 @@ type CertInfo struct {
 // @Summary		Get cert info
 // @Description	Get cert info
 // @Tags			cert
-// @Accept			json
 // @Produce		json
 // @Success		200	{object}	CertInfo
 // @Failure		403	{object}	apitypes.ErrorResponse
diff --git a/internal/api/v1/cert/renew.go b/internal/api/v1/cert/renew.go
index 1ace7800..7d1962f5 100644
--- a/internal/api/v1/cert/renew.go
+++ b/internal/api/v1/cert/renew.go
@@ -17,13 +17,12 @@ import (
 // @BasePath		/api/v1
 // @Summary		Renew cert
 // @Description	Renew cert
-// @Tags			cert
-// @Accept			json
-// @Produce		json
+// @Tags			cert,websocket
+// @Produce		plain
 // @Success		200	{object}	apitypes.SuccessResponse
 // @Failure		403	{object}	apitypes.ErrorResponse
 // @Failure		500	{object}	apitypes.ErrorResponse
-// @Router			/cert/renew [post]
+// @Router			/cert/renew [get]
 func Renew(c *gin.Context) {
 	autocert := config.GetInstance().AutoCertProvider()
 	if autocert == nil {
diff --git a/internal/api/v1/docker/containers.go b/internal/api/v1/docker/containers.go
index f89b13de..0a9c5574 100644
--- a/internal/api/v1/docker/containers.go
+++ b/internal/api/v1/docker/containers.go
@@ -24,7 +24,6 @@ type Container struct {
 // @Summary		Get containers
 // @Description	Get containers
 // @Tags			docker
-// @Accept			json
 // @Produce		json
 // @Success		200	{array}		Container
 // @Failure		403	{object}	apitypes.ErrorResponse
diff --git a/internal/api/v1/docker/info.go b/internal/api/v1/docker/info.go
index 84ee126a..178d64a8 100644
--- a/internal/api/v1/docker/info.go
+++ b/internal/api/v1/docker/info.go
@@ -47,9 +47,8 @@ func toDockerInfo(info dockerSystem.Info) dockerInfo {
 // @Summary		Get docker info
 // @Description	Get docker info
 // @Tags			docker
-// @Accept			json
 // @Produce		json
-// @Success		200	{array}		dockerInfo
+// @Success		200	{object}		dockerInfo
 // @Failure		403	{object}	apitypes.ErrorResponse
 // @Failure		500	{object}	apitypes.ErrorResponse
 // @Router			/docker/info [get]
diff --git a/internal/api/v1/docs/docs.go b/internal/api/v1/docs/docs.go
index 776e977c..56733acd 100644
--- a/internal/api/v1/docs/docs.go
+++ b/internal/api/v1/docs/docs.go
@@ -301,9 +301,6 @@ const docTemplate = `{
         "/cert/info": {
             "get": {
                 "description": "Get cert info",
-                "consumes": [
-                    "application/json"
-                ],
                 "produces": [
                     "application/json"
                 ],
@@ -341,16 +338,14 @@ const docTemplate = `{
             }
         },
         "/cert/renew": {
-            "post": {
+            "get": {
                 "description": "Renew cert",
-                "consumes": [
-                    "application/json"
-                ],
                 "produces": [
-                    "application/json"
+                    "text/plain"
                 ],
                 "tags": [
-                    "cert"
+                    "cert",
+                    "websocket"
                 ],
                 "summary": "Renew cert",
                 "responses": {
@@ -379,9 +374,6 @@ const docTemplate = `{
         "/docker/containers": {
             "get": {
                 "description": "Get containers",
-                "consumes": [
-                    "application/json"
-                ],
                 "produces": [
                     "application/json"
                 ],
@@ -418,9 +410,6 @@ const docTemplate = `{
         "/docker/info": {
             "get": {
                 "description": "Get docker info",
-                "consumes": [
-                    "application/json"
-                ],
                 "produces": [
                     "application/json"
                 ],
@@ -432,10 +421,7 @@ const docTemplate = `{
                     "200": {
                         "description": "OK",
                         "schema": {
-                            "type": "array",
-                            "items": {
-                                "$ref": "#/definitions/ServerInfo"
-                            }
+                            "$ref": "#/definitions/ServerInfo"
                         }
                     },
                     "403": {
diff --git a/internal/api/v1/docs/swagger.json b/internal/api/v1/docs/swagger.json
index 20d040de..f7fc0592 100644
--- a/internal/api/v1/docs/swagger.json
+++ b/internal/api/v1/docs/swagger.json
@@ -297,9 +297,6 @@
     "/cert/info": {
       "get": {
         "description": "Get cert info",
-        "consumes": [
-          "application/json"
-        ],
         "produces": [
           "application/json"
         ],
@@ -338,16 +335,14 @@
       }
     },
     "/cert/renew": {
-      "post": {
+      "get": {
         "description": "Renew cert",
-        "consumes": [
-          "application/json"
-        ],
         "produces": [
-          "application/json"
+          "text/plain"
         ],
         "tags": [
-          "cert"
+          "cert",
+          "websocket"
         ],
         "summary": "Renew cert",
         "responses": {
@@ -377,9 +372,6 @@
     "/docker/containers": {
       "get": {
         "description": "Get containers",
-        "consumes": [
-          "application/json"
-        ],
         "produces": [
           "application/json"
         ],
@@ -417,9 +409,6 @@
     "/docker/info": {
       "get": {
         "description": "Get docker info",
-        "consumes": [
-          "application/json"
-        ],
         "produces": [
           "application/json"
         ],
@@ -431,10 +420,7 @@
           "200": {
             "description": "OK",
             "schema": {
-              "type": "array",
-              "items": {
-                "$ref": "#/definitions/ServerInfo"
-              }
+              "$ref": "#/definitions/ServerInfo"
             }
           },
           "403": {
diff --git a/internal/api/v1/docs/swagger.yaml b/internal/api/v1/docs/swagger.yaml
index 52b486ae..600e81c6 100644
--- a/internal/api/v1/docs/swagger.yaml
+++ b/internal/api/v1/docs/swagger.yaml
@@ -437,11 +437,11 @@ definitions:
     - 1mo
     type: string
     x-enum-comments:
-      MetricsPeriod1mo: '@name MetricsPeriod1mo'
-      MetricsPeriod5m: '@name MetricsPeriod5m'
       MetricsPeriod15m: '@name MetricsPeriod15m'
       MetricsPeriod1d: '@name MetricsPeriod1d'
       MetricsPeriod1h: '@name MetricsPeriod1h'
+      MetricsPeriod1mo: '@name MetricsPeriod1mo'
+      MetricsPeriod5m: '@name MetricsPeriod5m'
     x-enum-varnames:
     - MetricsPeriod5m
     - MetricsPeriod15m
@@ -1452,8 +1452,6 @@ paths:
       x-id: logout
   /cert/info:
     get:
-      consumes:
-      - application/json
       description: Get cert info
       produces:
       - application/json
@@ -1479,12 +1477,10 @@ paths:
       - cert
       x-id: info
   /cert/renew:
-    post:
-      consumes:
-      - application/json
+    get:
       description: Renew cert
       produces:
-      - application/json
+      - text/plain
       responses:
         "200":
           description: OK
@@ -1501,11 +1497,10 @@ paths:
       summary: Renew cert
       tags:
       - cert
+      - websocket
       x-id: renew
   /docker/containers:
     get:
-      consumes:
-      - application/json
       description: Get containers
       produces:
       - application/json
@@ -1530,8 +1525,6 @@ paths:
       x-id: containers
   /docker/info:
     get:
-      consumes:
-      - application/json
       description: Get docker info
       produces:
       - application/json
@@ -1539,9 +1532,7 @@ paths:
         "200":
           description: OK
           schema:
-            items:
-              $ref: '#/definitions/ServerInfo'
-            type: array
+            $ref: '#/definitions/ServerInfo'
         "403":
           description: Forbidden
           schema:
@@ -2124,11 +2115,11 @@ paths:
         name: period
         type: string
         x-enum-comments:
-          MetricsPeriod1mo: '@name MetricsPeriod1mo'
-          MetricsPeriod5m: '@name MetricsPeriod5m'
           MetricsPeriod15m: '@name MetricsPeriod15m'
           MetricsPeriod1d: '@name MetricsPeriod1d'
           MetricsPeriod1h: '@name MetricsPeriod1h'
+          MetricsPeriod1mo: '@name MetricsPeriod1mo'
+          MetricsPeriod5m: '@name MetricsPeriod5m'
         x-enum-varnames:
         - MetricsPeriod5m
         - MetricsPeriod15m