Semgrep

Semgrep MCP Server

The Semgrep MCP Server is a Model Context Protocol (MCP) server for using Semgrep to scan code for security vulnerabilities, leveraging Semgrep's fast, deterministic static analysis tool that semantically understands many languages and comes with over 5,000 rules.

This MCP server integrates the powerful Semgrep static analysis tool with AI assistants like Anthropic Claude, enabling advanced code analysis, security vulnerability detection, and code quality improvements directly through a conversational interface.

Key Capabilities & Value Proposition

Comprehensive Code Analysis

• 6 Powerful Tools: Complete suite of security scanning, custom rule creation, AST analysis, and supported language detection

• Real-time Security Scanning: Quietly check your work, fix risky patterns, and help AI models output safer, cleaner code

• Custom Rule Development: Create and validate bespoke Semgrep rules for project-specific security requirements

• Multi-language Support: Comprehensive coverage across popular programming languages

Seamless AI Integration

• ChatGPT Custom Connectors: Direct integration with ChatGPT for conversational code analysis
• Claude Custom Connectors: Native support for Anthropic Claude through MCP protocol
• Remote MCP Server: Hosted at https://mcp.semgrep.ai/mcp with HTTP Streamable protocol and https://mcp.semgrep.ai/sse with Server Side Events

Enterprise-Grade Security

• 5,000+ Built-in Rules: Leverage Semgrep's extensive rule library for comprehensive security coverage
• Vulnerability Detection: Identify SQL injection, XSS, and other critical security flaws
• Code Quality Enforcement: Maintain consistent coding standards across development teams

Primary Use Cases & Target Audience

For Security Teams

• Application Security (AppSec) Engineers: Enable security teams to partner with developers and shift left organically, without introducing friction, giving confidence that only true, actionable issues are surfaced

• DevSecOps Professionals: Integrate security scanning into CI/CD pipelines through AI-assisted workflows

• Compliance Officers: Ensure code meets security standards and regulatory requirements

For Development Teams

• Software Engineers: Developers using AI-augmented editors with LLM assistance, including those with no software engineering experience creating entire apps, who need security tools that keep up with the pace of AI-generated code

• Code Reviewers: Enhance code review processes with automated security insights

• Technical Leads: Maintain code quality across distributed development teams

For Organizations

• Startups to Enterprise: Scale security practices without dedicated security teams
• Development Agencies: Deliver secure code to clients with automated scanning
• Educational Institutions: Teach secure coding practices through interactive AI assistance

Advanced Features

Tools Available

1. semgrep_rule_schema - Schema validation for custom Semgrep rules
2. get_supported_languages - Query supported programming languages
3. semgrep_scan_with_custom_rule - Execute scans with custom security rules
4. semgrep_scan - Standard security vulnerability scanning
5. security_check - Fast security validation for code commits
6. get_abstract_syntax_tree - AST analysis for deep code understanding

Integration Examples

• Semgrep ChatGPT Connector: Enable ChatGPT to perform security scans during code generation
• Semgrep Claude Integration: Allow Claude to validate code security in real-time conversations
• Remote Semgrep MCP Server: Connect multiple AI assistants to centralized security scanning

Getting Started

Semgrep is especially well positioned to implement MCP integration, as the engine is transparent, extensible, and ultra fast, making it easy for LLMs to interface with Semgrep and leverage it as a tool transforming how security integrates with modern AI-powered development workflows.