diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 0000000..072780f
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,24 @@
+name: CodeQL
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: "0 6 * * 1"
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: github/codeql-action/init@v3
+        with:
+          languages: javascript-typescript
+      - uses: github/codeql-action/analyze@v3
+        with:
+          category: /language:javascript-typescript
diff --git a/README.md b/README.md
index 15ebd23..e36dc40 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 [![CI](https://github.com/FerrFlow-Org/MCP/actions/workflows/ci.yml/badge.svg)](https://github.com/FerrFlow-Org/MCP/actions/workflows/ci.yml)
 [![npm](https://img.shields.io/npm/v/@ferrflow/mcp)](https://www.npmjs.com/package/@ferrflow/mcp)
 [![Coverage](https://codecov.io/gh/FerrFlow-Org/MCP/branch/main/graph/badge.svg)](https://codecov.io/gh/FerrFlow-Org/MCP)
+[![CodeQL](https://github.com/FerrFlow-Org/MCP/actions/workflows/codeql.yml/badge.svg)](https://github.com/FerrFlow-Org/MCP/actions/workflows/codeql.yml)
 [![License](https://img.shields.io/github/license/FerrFlow-Org/MCP)](LICENSE)
 
 [Model Context Protocol](https://modelcontextprotocol.io) server that lets AI assistants interact with FerrFlow.