diff --git a/internal/app/http_api.go b/internal/app/http_api.go
index 75ca7f5e..4b92d9b6 100644
--- a/internal/app/http_api.go
+++ b/internal/app/http_api.go
@@ -24,6 +24,7 @@ import (
 	"sub2api-cn-relay-manager/internal/store/sqlite"
 
 	"sub2api-cn-relay-manager/internal/access"
+	"sub2api-cn-relay-manager/internal/metrics"
 )
 
 // 版本信息变量，在构建时通过 -ldflags 注入
@@ -336,6 +337,7 @@ func NewAPIHandlerWithAuth(adminAuth AdminAuthConfig, actions ActionSet) http.Ha
 	mux := http.NewServeMux()
 	mux.HandleFunc("GET /healthz", healthz)
 	mux.HandleFunc("GET /version", handleVersion)
+	mux.Handle("GET /metrics", metrics.Handler())
 	mux.HandleFunc("GET /api/admin/session", func(w http.ResponseWriter, r *http.Request) {
 		handleAdminSessionState(w, r, adminAuth)
 	})