diff --git a/server/service/appconfig.go b/server/service/appconfig.go
index e7b75103e3..7484990603 100644
--- a/server/service/appconfig.go
+++ b/server/service/appconfig.go
@@ -13,6 +13,7 @@ import (
 	"net"
 	"net/http"
 	"net/url"
+	"os"
 
 	"github.com/fleetdm/fleet/v4/server/authz"
 	authz_ctx "github.com/fleetdm/fleet/v4/server/contexts/authz"
@@ -43,6 +44,14 @@ type appConfigResponseFields struct {
 	Logging *fleet.Logging `json:"logging,omitempty"`
 	// SandboxEnabled is true if fleet serve was ran with server.sandbox_enabled=true
 	SandboxEnabled bool `json:"sandbox_enabled,omitempty"`
+	// MDMEnabled is true if fleet serve was ran with FLEET_DEV_MDM_ENABLED=1
+	//
+	// This is used only for UI development, for more details check
+	// https://github.com/fleetdm/fleet/issues/8751
+	//
+	// TODO: remove this flag once the MDM feature is ready for
+	// release.
+	MDMEnabled bool `json:"mdm_enabled,omitempty"`
 
 	Err error `json:"error,omitempty"`
 }
@@ -135,6 +144,12 @@ func getAppConfigEndpoint(ctx context.Context, request interface{}, svc fleet.Se
 			License:         license,
 			Logging:         loggingConfig,
 			SandboxEnabled:  svc.SandboxEnabled(),
+			// Undocumented feature flag for MDM, used only for UI development, for
+			// more details check https://github.com/fleetdm/fleet/issues/8751
+			//
+			// TODO: remove this flag once the MDM feature is ready for
+			// release.
+			MDMEnabled: os.Getenv("FLEET_DEV_MDM_ENABLED") == "1",
 		},
 	}
 	return response, nil