diff --git a/apidocs/openapi.yaml b/apidocs/openapi.yaml
index 281621d2..96e498b4 100644
--- a/apidocs/openapi.yaml
+++ b/apidocs/openapi.yaml
@@ -295,6 +295,8 @@ components:
     RTSPSession:
       type: object
       properties:
+        created:
+          type: string
         remoteAddr:
           type: string
         state:
@@ -313,6 +315,8 @@ components:
     RTMPConn:
       type: object
       properties:
+        created:
+          type: string
         remoteAddr:
           type: string
         state:
@@ -322,6 +326,8 @@ components:
     HLSMuxer:
       type: object
       properties:
+        created:
+          type: string
         lastRequest:
           type: string
 
diff --git a/internal/core/hls_muxer.go b/internal/core/hls_muxer.go
index 75c6a268..fa73a310 100644
--- a/internal/core/hls_muxer.go
+++ b/internal/core/hls_muxer.go
@@ -127,6 +127,7 @@ type hlsMuxer struct {
 
 	ctx             context.Context
 	ctxCancel       func()
+	created         time.Time
 	path            *path
 	ringBuffer      *ringbuffer.RingBuffer
 	lastRequestTime *int64
@@ -173,6 +174,7 @@ func newHLSMuxer(
 		parent:                    parent,
 		ctx:                       ctx,
 		ctxCancel:                 ctxCancel,
+		created:                   time.Now(),
 		lastRequestTime: func() *int64 {
 			v := time.Now().Unix()
 			return &v
@@ -240,6 +242,7 @@ func (m *hlsMuxer) run() {
 
 			case req := <-m.chAPIHLSMuxersList:
 				req.data.Items[m.name] = hlsServerAPIMuxersListItem{
+					Created:     m.created,
 					LastRequest: time.Unix(atomic.LoadInt64(m.lastRequestTime), 0).String(),
 				}
 				close(req.res)
diff --git a/internal/core/hls_server.go b/internal/core/hls_server.go
index dbda6dba..7d0c0178 100644
--- a/internal/core/hls_server.go
+++ b/internal/core/hls_server.go
@@ -12,6 +12,7 @@ import (
 	gopath "path"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/gin-gonic/gin"
 
@@ -27,7 +28,8 @@ func (nilWriter) Write(p []byte) (int, error) {
 }
 
 type hlsServerAPIMuxersListItem struct {
-	LastRequest string `json:"lastRequest"`
+	Created     time.Time `json:"created"`
+	LastRequest string    `json:"lastRequest"`
 }
 
 type hlsServerAPIMuxersListData struct {
diff --git a/internal/core/path.go b/internal/core/path.go
index 3ace7af7..9f29aa93 100644
--- a/internal/core/path.go
+++ b/internal/core/path.go
@@ -67,7 +67,7 @@ type pathParent interface {
 }
 
 type pathRTSPSession interface {
-	IsRTSPSession()
+	isRTSPSession()
 }
 
 type pathReaderState int
diff --git a/internal/core/rtmp_conn.go b/internal/core/rtmp_conn.go
index 752d4f37..a6256ff7 100644
--- a/internal/core/rtmp_conn.go
+++ b/internal/core/rtmp_conn.go
@@ -74,6 +74,7 @@ type rtmpConn struct {
 
 	ctx        context.Context
 	ctxCancel  func()
+	created    time.Time
 	path       *path
 	ringBuffer *ringbuffer.RingBuffer // read
 	state      rtmpConnState
@@ -115,6 +116,7 @@ func newRTMPConn(
 		parent:                    parent,
 		ctx:                       ctx,
 		ctxCancel:                 ctxCancel,
+		created:                   time.Now(),
 	}
 
 	c.log(logger.Info, "opened")
@@ -125,18 +127,11 @@ func newRTMPConn(
 	return c
 }
 
-// Close closes a Conn.
 func (c *rtmpConn) close() {
 	c.ctxCancel()
 }
 
-// ID returns the ID of the Conn.
-func (c *rtmpConn) ID() string {
-	return c.id
-}
-
-// RemoteAddr returns the remote address of the Conn.
-func (c *rtmpConn) RemoteAddr() net.Addr {
+func (c *rtmpConn) remoteAddr() net.Addr {
 	return c.nconn.RemoteAddr()
 }
 
diff --git a/internal/core/rtmp_server.go b/internal/core/rtmp_server.go
index ce6741c3..18f25419 100644
--- a/internal/core/rtmp_server.go
+++ b/internal/core/rtmp_server.go
@@ -7,6 +7,7 @@ import (
 	"net"
 	"strconv"
 	"sync"
+	"time"
 
 	"github.com/aler9/rtsp-simple-server/internal/conf"
 	"github.com/aler9/rtsp-simple-server/internal/externalcmd"
@@ -14,8 +15,9 @@ import (
 )
 
 type rtmpServerAPIConnsListItem struct {
-	RemoteAddr string `json:"remoteAddr"`
-	State      string `json:"state"`
+	Created    time.Time `json:"created"`
+	RemoteAddr string    `json:"remoteAddr"`
+	State      string    `json:"state"`
 }
 
 type rtmpServerAPIConnsListData struct {
@@ -202,8 +204,9 @@ outer:
 			}
 
 			for c := range s.conns {
-				data.Items[c.ID()] = rtmpServerAPIConnsListItem{
-					RemoteAddr: c.RemoteAddr().String(),
+				data.Items[c.id] = rtmpServerAPIConnsListItem{
+					Created:    c.created,
+					RemoteAddr: c.remoteAddr().String(),
 					State: func() string {
 						switch c.safeState() {
 						case rtmpConnStateRead:
@@ -222,7 +225,7 @@ outer:
 		case req := <-s.chAPIConnsKick:
 			res := func() bool {
 				for c := range s.conns {
-					if c.ID() == req.id {
+					if c.id == req.id {
 						delete(s.conns, c)
 						c.close()
 						return true
@@ -266,7 +269,7 @@ func (s *rtmpServer) newConnID() (string, error) {
 
 		alreadyPresent := func() bool {
 			for c := range s.conns {
-				if c.ID() == id {
+				if c.id == id {
 					return true
 				}
 			}
diff --git a/internal/core/rtsp_server.go b/internal/core/rtsp_server.go
index 22fc4594..99d847fa 100644
--- a/internal/core/rtsp_server.go
+++ b/internal/core/rtsp_server.go
@@ -21,8 +21,9 @@ import (
 )
 
 type rtspServerAPISessionsListItem struct {
-	RemoteAddr string `json:"remoteAddr"`
-	State      string `json:"state"`
+	Created    time.Time `json:"created"`
+	RemoteAddr string    `json:"remoteAddr"`
+	State      string    `json:"state"`
 }
 
 type rtspServerAPISessionsListData struct {
@@ -242,7 +243,7 @@ func (s *rtspServer) newSessionID() (string, error) {
 
 		alreadyPresent := func() bool {
 			for _, s := range s.sessions {
-				if s.ID() == id {
+				if s.id == id {
 					return true
 				}
 			}
@@ -408,8 +409,9 @@ func (s *rtspServer) apiSessionsList(req rtspServerAPISessionsListReq) rtspServe
 	}
 
 	for _, s := range s.sessions {
-		data.Items[s.ID()] = rtspServerAPISessionsListItem{
-			RemoteAddr: s.RemoteAddr().String(),
+		data.Items[s.id] = rtspServerAPISessionsListItem{
+			Created:    s.created,
+			RemoteAddr: s.remoteAddr().String(),
 			State: func() string {
 				switch s.safeState() {
 				case gortsplib.ServerSessionStatePrePlay,
@@ -440,7 +442,7 @@ func (s *rtspServer) apiSessionsKick(req rtspServerAPISessionsKickReq) rtspServe
 	defer s.mutex.RUnlock()
 
 	for key, se := range s.sessions {
-		if se.ID() == req.id {
+		if se.id == req.id {
 			se.close()
 			delete(s.sessions, key)
 			se.onClose(liberrors.ErrServerTerminated{})
diff --git a/internal/core/rtsp_session.go b/internal/core/rtsp_session.go
index 8841078a..4b3fce75 100644
--- a/internal/core/rtsp_session.go
+++ b/internal/core/rtsp_session.go
@@ -38,6 +38,7 @@ type rtspSession struct {
 	pathManager     rtspSessionPathManager
 	parent          rtspSessionParent
 
+	created         time.Time
 	path            *path
 	state           gortsplib.ServerSessionState
 	stateMutex      sync.Mutex
@@ -65,6 +66,7 @@ func newRTSPSession(
 		externalCmdPool: externalCmdPool,
 		pathManager:     pathManager,
 		parent:          parent,
+		created:         time.Now(),
 	}
 
 	s.log(logger.Info, "created by %v", s.author.NetConn().RemoteAddr())
@@ -77,13 +79,8 @@ func (s *rtspSession) close() {
 	s.ss.Close()
 }
 
-// IsRTSPSession implements pathRTSPSession.
-func (s *rtspSession) IsRTSPSession() {}
-
-// ID returns the public ID of the session.
-func (s *rtspSession) ID() string {
-	return s.id
-}
+// isRTSPSession implements pathRTSPSession.
+func (s *rtspSession) isRTSPSession() {}
 
 func (s *rtspSession) safeState() gortsplib.ServerSessionState {
 	s.stateMutex.Lock()
@@ -91,8 +88,7 @@ func (s *rtspSession) safeState() gortsplib.ServerSessionState {
 	return s.state
 }
 
-// RemoteAddr returns the remote address of the author of the session.
-func (s *rtspSession) RemoteAddr() net.Addr {
+func (s *rtspSession) remoteAddr() net.Addr {
 	return s.author.NetConn().RemoteAddr()
 }