ClawGuard MCP Server enables AI security scanning for prompt injection threats directly within MCP-compatible tools (Claude Desktop, Claude Code, Cursor, etc.).

• scan_text: Scan a single text for prompt injection, jailbreak attempts, data exfiltration, social engineering, and encoding attacks — returns a risk score (0–10), severity level, cleanliness status, and detailed threat findings.

• scan_batch: Scan up to 10 texts in a single call, receiving individual scan results for each input.

• get_patterns: Retrieve all 216 detection patterns organized by threat category (prompt_injection, jailbreak, data_exfiltration, social_engineering), including names, severity levels, and descriptions. No API key required.

• get_usage: Check your ClawGuard Shield API usage statistics — tier (free/pro/enterprise), daily request limits, today's usage, and remaining quota.

• health_check: Verify the ClawGuard Shield API is operational and get service info (API version, active pattern count). No API key required.

Detects threats across 15 languages with 99.0% F1 score and covers OWASP LLM + Agentic + MCP Top 10 security threats.

Offers GitHub Action integration for CI/CD security scanning through the related ClawGuard GitHub Action project, enabling automated prompt injection detection in development workflows.

Detects markdown image leaks and other markdown-based data exfiltration attacks through ClawGuard Shield's security patterns, enabling protection against markdown-based threats.

Provides comprehensive coverage of OWASP LLM + Agentic + MCP Top 10 security threats through ClawGuard Shield's detection patterns, enabling security scanning aligned with OWASP standards.

Provides Python package distribution through PyPI for the ClawGuard MCP server and related Shield Python SDK, enabling easy installation and integration into Python environments.

Detects unicode obfuscation attacks as part of ClawGuard Shield's encoding attack detection capabilities, enabling identification of security threats using unicode manipulation.

{
 "mcpServers": {
 "clawguard": {
 "command": "uvx",
 "args": ["clawguard-mcp"],
 "env": {
 "CLAWGUARD_API_KEY": "cgs_your_api_key_here"
 }
 }
 }
}

claude mcp add clawguard -- uvx clawguard-mcp

{
 "is_clean": false,
 "risk_score": 9.2,
 "severity": "CRITICAL",
 "findings": [
 {
 "pattern": "instruction_override",
 "category": "prompt_injection",
 "severity": "CRITICAL",
 "matched_text": "Ignore all previous instructions"
 }
 ]
}

# Clone and install
git clone https://github.com/joergmichno/clawguard-mcp.git
cd clawguard-mcp
uv sync

# Run tests
uv run pytest

# Test with MCP Inspector
npx @modelcontextprotocol/inspector uv --directory . run clawguard-mcp

# Test with Claude Desktop (local dev)
# Add to claude_desktop_config.json:
{
 "mcpServers": {
 "clawguard-dev": {
 "command": "uv",
 "args": ["--directory", "/path/to/clawguard-mcp", "run", "clawguard-mcp"],
 "env": { "CLAWGUARD_API_KEY": "cgs_your_key" }
 }
 }
}