diff --git a/src/lib/instrumentation.ts b/src/lib/instrumentation.ts
index e6eccb4..8a3bdb8 100644
--- a/src/lib/instrumentation.ts
+++ b/src/lib/instrumentation.ts
@@ -1,6 +1,7 @@
 import logger from "../logger.js";
 import config from "../config.js";
 import { createRequire } from "module";
+import { detectRunMode } from "./utils.js";
 const require = createRequire(import.meta.url);
 const packageJson = require("../../package.json");
 import axios from "axios";
@@ -12,6 +13,7 @@ interface MCPEventPayload {
     tool_name: string;
     mcp_client: string;
     success?: boolean;
+    mode?: string;
     error_message?: string;
     error_type?: string;
   };
@@ -58,6 +60,8 @@ export function trackMCP(
       error instanceof Error ? error.constructor.name : "Unknown";
   }
 
+  event.event_properties.mode = detectRunMode();
+
   axios
     .post(instrumentationEndpoint, event, {
       headers: {
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 00cf097..787ad3c 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -1,4 +1,6 @@
 import sharp from "sharp";
+import path from "path";
+import { fileURLToPath } from "url";
 
 export function sanitizeUrlParam(param: string): string {
   // Remove any characters that could be used for command injection
@@ -34,3 +36,14 @@ export async function assertOkResponse(response: Response, action: string) {
     );
   }
 }
+
+export function detectRunMode(): "npx" | "local" | "unknown" {
+  try {
+    const scriptPath = fileURLToPath(import.meta.url);
+    const normalizedPath = path.normalize(scriptPath);
+    const npxPattern = path.sep + "_npx" + path.sep;
+    return normalizedPath.includes(npxPattern) ? "npx" : "local";
+  } catch {
+    return "unknown";
+  }
+}