diff --git a/machines/dolomite/common.nix b/machines/dolomite/common.nix
index 3840592..65b10c7 100644
--- a/machines/dolomite/common.nix
+++ b/machines/dolomite/common.nix
@@ -26,6 +26,7 @@
       enable = true;
       node.enable = true;
       blackbox.enable = true;
+      v2ray.enable = true;
     };
 
     custom.monitoring = {
diff --git a/machines/thorite/monitoring.nix b/machines/thorite/monitoring.nix
index dd3b693..981fd14 100644
--- a/machines/thorite/monitoring.nix
+++ b/machines/thorite/monitoring.nix
@@ -165,6 +165,11 @@ in
           hostAddress = "fra-00.coho-tet.ts.net";
           targetAddresses = chinaTargets;
         }
+      ])
+      ++ (mkV2rayScrapes [
+        { address = "la-00.coho-tet.ts.net"; }
+        { address = "hk-00.coho-tet.ts.net"; }
+        { address = "fra-00.coho-tet.ts.net"; }
       ]);
 
   };
diff --git a/modules/nixos/common-settings/proxy-server.nix b/modules/nixos/common-settings/proxy-server.nix
index f82f91f..2384900 100644
--- a/modules/nixos/common-settings/proxy-server.nix
+++ b/modules/nixos/common-settings/proxy-server.nix
@@ -1,5 +1,6 @@
 {
   config,
+  pkgs,
   lib,
   ...
 }:
@@ -114,7 +115,24 @@ let
           }
         ]);
     };
+    experimental = {
+      v2ray_api = {
+        listen = "127.0.0.1:15175";
+        stats = {
+          users = map (u: u.name) users;
+          enabled = true;
+          inbounds = map (p: "sg" + toString p) (lib.range 0 4);
+        };
+      };
+    };
   };
+  sing-box = pkgs.sing-box.overrideAttrs (
+    finalAttrs: previousAttrs: {
+      tags = previousAttrs.tags ++ [
+        "with_v2ray_api"
+      ];
+    }
+  );
 in
 {
   options.commonSettings.proxyServer = {
@@ -166,6 +184,7 @@ in
 
       services.sing-box = {
         enable = true;
+        package = sing-box;
         settings = (
           mkSingConfig (
             map (n: {
diff --git a/modules/nixos/monitor/default.nix b/modules/nixos/monitor/default.nix
index ae366d1..71ec05e 100644
--- a/modules/nixos/monitor/default.nix
+++ b/modules/nixos/monitor/default.nix
@@ -57,6 +57,13 @@ in
             default = "${config.networking.hostName}.coho-tet.ts.net";
           };
         };
+        v2ray = {
+          enable = mkEnableOption "blackbox exporter";
+          listenAddress = mkOption {
+            type = types.str;
+            default = "${config.networking.hostName}.coho-tet.ts.net";
+          };
+        };
       };
     };
   };
diff --git a/modules/nixos/monitor/exporters.nix b/modules/nixos/monitor/exporters.nix
index e3aa561..56750ef 100644
--- a/modules/nixos/monitor/exporters.nix
+++ b/modules/nixos/monitor/exporters.nix
@@ -47,6 +47,13 @@ in
       );
     };
 
+    services.prometheus.exporters.v2ray = mkIf cfg.v2ray.enable {
+      enable = true;
+      listenAddress = cfg.v2ray.listenAddress;
+      port = 9516;
+      v2rayEndpoint = config.services.sing-box.settings.experimental.v2ray_api.listen;
+    };
+
     # gotosocial
     sops.templates."gotosocial_metrics.env" = {
       content = ''
diff --git a/overlays/my-lib/prometheus.nix b/overlays/my-lib/prometheus.nix
index 3642d55..c79f131 100644
--- a/overlays/my-lib/prometheus.nix
+++ b/overlays/my-lib/prometheus.nix
@@ -28,6 +28,36 @@ in
     )
   );
 
+  mkV2rayScrapes = targets: [
+    {
+      job_name = "v2ray-exporter";
+      scheme = "http";
+      static_configs = map (
+        {
+          address,
+          port ? 9516,
+        }:
+        {
+          targets = [ "${address}${mkPort port}" ];
+        }
+      ) targets;
+    }
+    {
+      job_name = "singbox_stat";
+      scheme = "http";
+      metrics_path = "/scrape";
+      static_configs = map (
+        {
+          address,
+          port ? 9516,
+        }:
+        {
+          targets = [ "${address}${mkPort port}" ];
+        }
+      ) targets;
+    }
+  ];
+
   mkCaddyScrapes = targets: [
     {
       job_name = "caddy";