diff --git a/README.md b/README.md
index 972ed5f..b0be031 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,8 @@ jobs:
 
 | Input | Description | Default | Required |
 |-------|-------------|---------|----------|
-| `claude-api-key` | Anthropic Claude API key for security analysis | None | Yes |
+| `claude-api-key` | Anthropic Claude API key for security analysis | None | No |
+| `claude-code-oauth-token` | Claude Code OAuth token (alternative to claude-api-key) | None | No |
 | `comment-pr` | Whether to comment on PRs with findings | `true` | No |
 | `upload-results` | Whether to upload results as artifacts | `true` | No |
 | `exclude-directories` | Comma-separated list of directories to exclude from scanning | None | No |
diff --git a/action.yml b/action.yml
index 3c8f3ff..c97e920 100644
--- a/action.yml
+++ b/action.yml
@@ -25,9 +25,13 @@ inputs:
   
   claude-api-key:
     description: 'Anthropic Claude API key for security analysis'
-    required: true
+    required: false
     default: ''
 
+  claude-code-oauth-token:
+    description: "Claude Code OAuth token (alternative to claude-api-key)"
+    required: false
+
   claude-model:
     description: 'Claude model to use for security analysis (e.g., claude-3-sonnet-20240229)'
     required: false
@@ -170,6 +174,7 @@ runs:
         GITHUB_REPOSITORY: ${{ github.repository }}
         PR_NUMBER: ${{ github.event.pull_request.number }}
         ANTHROPIC_API_KEY: ${{ inputs.claude-api-key }}
+        CLAUDE_CODE_OAUTH_TOKEN: ${{ inputs.claude-code-oauth-token }}
         ENABLE_CLAUDE_FILTERING: 'true' 
         EXCLUDE_DIRECTORIES: ${{ inputs.exclude-directories }}
         FALSE_POSITIVE_FILTERING_INSTRUCTIONS: ${{ inputs.false-positive-filtering-instructions }}
@@ -202,6 +207,7 @@ runs:
         echo "Python version: $(python --version)"
         echo "Claude CLI version: $(claude --version 2>&1 || echo 'Claude CLI not found')"
         echo "ANTHROPIC_API_KEY set: $(if [ -n "$ANTHROPIC_API_KEY" ]; then echo 'Yes'; else echo 'No'; fi)"
+        echo "CLAUDE_CODE_OAUTH_TOKEN set: $(if [ -n "CLAUDE_CODE_OAUTH_TOKEN" ]; then echo 'Yes'; else echo 'No'; fi)"
         echo "GITHUB_REPOSITORY: $GITHUB_REPOSITORY"
         echo "PR_NUMBER: $PR_NUMBER"
         echo "Python path: $PYTHONPATH"