diff --git a/third_party/excalidraw/.cursor-plugin/plugin.json b/third_party/excalidraw/.cursor-plugin/plugin.json
index d9699ad1b..8c61331c9 100644
--- a/third_party/excalidraw/.cursor-plugin/plugin.json
+++ b/third_party/excalidraw/.cursor-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "excalidraw",
   "displayName": "Excalidraw",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "minClientVersions": {
     "cursor": "3.13.0"
   },
diff --git a/third_party/excalidraw/CHANGELOG.md b/third_party/excalidraw/CHANGELOG.md
index 88ed37b98..726e96e04 100644
--- a/third_party/excalidraw/CHANGELOG.md
+++ b/third_party/excalidraw/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this plugin will be documented here.
 
+## 1.0.1
+
+- Send a static `X-Cursor-Plugin: excalidraw` header so hosts treat the server as anonymous instead of OAuth-gated. Cursor cloud agents previously reported it as needing authentication and never connected, even though the server requires no credentials.
+
 ## 1.0.0 — initial release
 
 - Added the `excalidraw` MCP server pointing at Excalidraw's hosted Streamable HTTP endpoint (`https://mcp.excalidraw.com/mcp`).
diff --git a/third_party/excalidraw/mcp.json b/third_party/excalidraw/mcp.json
index 55f551ef8..10e598470 100644
--- a/third_party/excalidraw/mcp.json
+++ b/third_party/excalidraw/mcp.json
@@ -2,7 +2,10 @@
   "mcpServers": {
     "excalidraw": {
       "type": "http",
-      "url": "https://mcp.excalidraw.com/mcp"
+      "url": "https://mcp.excalidraw.com/mcp",
+      "headers": {
+        "X-Cursor-Plugin": "excalidraw"
+      }
     }
   }
 }