diff --git a/pkg/internal/http/api/channels_api.go b/pkg/internal/http/api/channels_api.go
index a29b155..b6404c7 100644
--- a/pkg/internal/http/api/channels_api.go
+++ b/pkg/internal/http/api/channels_api.go
@@ -114,6 +114,20 @@ func listOwnedChannel(c *fiber.Ctx) error {
 	return c.JSON(channels)
 }
 
+func listOwnedChannelGlobalWide(c *fiber.Ctx) error {
+	if err := sec.EnsureAuthenticated(c); err != nil {
+		return err
+	}
+	user := c.Locals("user").(authm.Account)
+
+	channels, err := services.ListChannelWithUser(user, 0)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(channels)
+}
+
 func listAvailableChannel(c *fiber.Ctx) error {
 	if err := sec.EnsureAuthenticated(c); err != nil {
 		return err
@@ -142,6 +156,20 @@ func listAvailableChannel(c *fiber.Ctx) error {
 	return c.JSON(channels)
 }
 
+func listAvailableChannelGlobalWide(c *fiber.Ctx) error {
+	if err := sec.EnsureAuthenticated(c); err != nil {
+		return err
+	}
+	user := c.Locals("user").(authm.Account)
+
+	channels, err := services.ListAvailableChannel(database.C, user, 0)
+	if err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+	}
+
+	return c.JSON(channels)
+}
+
 func createChannel(c *fiber.Ctx) error {
 	if err := sec.EnsureGrantedPerm(c, "CreateChannels", true); err != nil {
 		return err
diff --git a/pkg/internal/http/api/index.go b/pkg/internal/http/api/index.go
index dba5a2c..57544f3 100644
--- a/pkg/internal/http/api/index.go
+++ b/pkg/internal/http/api/index.go
@@ -12,6 +12,9 @@ func MapAPIs(app *fiber.App, baseURL string) {
 			quick.Post("/:channelId/reply/:eventId", quickReply)
 		}
 
+		api.Get("/channels/me", listOwnedChannelGlobalWide)
+		api.Get("/channels/me/available", listAvailableChannelGlobalWide)
+
 		channels := api.Group("/channels/:realm").Use(realmMiddleware).Name("Channels API")
 		{
 			channels.Get("/", listChannel)
diff --git a/pkg/internal/services/channels.go b/pkg/internal/services/channels.go
index 8ee7b46..745f58b 100644
--- a/pkg/internal/services/channels.go
+++ b/pkg/internal/services/channels.go
@@ -228,7 +228,9 @@ func ListChannelWithUser(user authm.Account, realmId ...uint) ([]models.Channel,
 	var channels []models.Channel
 	tx := database.C.Where(&models.Channel{AccountID: user.ID})
 	if len(realmId) > 0 {
-		tx = tx.Where("realm_id = ?", realmId)
+		if realmId[0] != 0 {
+			tx = tx.Where("realm_id = ?", realmId)
+		}
 	}
 
 	tx = PreloadDirectChannelMembers(tx)
@@ -255,7 +257,9 @@ func ListAvailableChannel(tx *gorm.DB, user authm.Account, realmId ...uint) ([]m
 
 	tx = tx.Where("id IN ?", idx)
 	if len(realmId) > 0 {
-		tx = tx.Where("realm_id = ?", realmId)
+		if realmId[0] != 0 {
+			tx = tx.Where("realm_id = ?", realmId)
+		}
 	} else {
 		tx = tx.Where("realm_id IS NULL")
 	}