Golf

Product Introduction

1. Golf Firewall is a security layer designed to protect companies exposing Model Context Protocol (MCP) servers by blocking malicious or sensitive data leaks, including prompt injections, PII exposure, and credential leaks. It operates as a protocol-aware proxy that inspects and filters traffic between client agents and MCP servers.
2. The core value of Golf lies in consolidating security controls for MCP infrastructure, enabling enterprises to deploy production-ready servers with centralized policy enforcement, real-time threat prevention, and compliance-ready auditing. It eliminates fragmented security measures by acting as a unified gateway for all MCP traffic.

Main Features

1. Golf enforces role-based rate limiting and access controls (RBAC) to prevent abuse of backend resources, ensuring only authorized users and agents interact with specific MCP endpoints.
2. It provides centralized policy management for hardening MCP servers, including automated CORS configuration, security header injection, and MCP spec validation to eliminate misconfigurations.
3. The firewall validates every token against strict MCP specifications, including resource indicator checks, to block unauthorized or malformed credentials before they reach the server.
4. Golf offers detailed audit trails with OpenTelemetry integration, logging all security events, data flows, and policy enforcement actions for compliance and forensic analysis.
5. A unified dashboard visualizes real-time traffic patterns, threat alerts, and policy violations across all MCP servers, enabling rapid incident response.
6. Its high-performance Go-based proxy engine ensures sub-millisecond latency, making security inspection scalable without impacting server responsiveness.

Problems Solved

1. Golf addresses the lack of protocol-aware security for MCP infrastructure, which leaves servers vulnerable to prompt injection, token hijacking, and command execution attacks undetectable by traditional firewalls.
2. It serves enterprises deploying MCP servers in production, particularly those in regulated industries requiring audit trails, least-privilege access, and centralized governance.
3. Typical use cases include securing multi-server MCP deployments, preventing credential leaks in AI agent interactions, and meeting compliance requirements for data flow tracing in financial or healthcare applications.

Unique Advantages

1. Unlike generic API gateways, Golf understands MCP semantics, enabling deep inspection of agent-server interactions to block protocol-specific exploits like tool poisoning and indirect prompt injections.
2. It combines authentication, RBAC, and rate limiting with MCP-specific validations, such as strict resource indicator enforcement and tool call integrity checks, in a single control plane.
3. Competitive advantages include zero-config OpenTelemetry tracing, automatic generation of compliant MCP servers via the open-source golfMCP framework, and enterprise-ready deployment options (self-hosted or managed).

Frequently Asked Questions (FAQ)

1. What is the Golf MCP Firewall? Golf is a protocol-aware security proxy that inspects and filters traffic between AI agents and MCP servers, blocking threats like prompt injection and credential leaks while enforcing centralized access policies.
2. Why use Golf if we already host MCP servers? Hosting multiple unprotected MCP servers creates inconsistent security controls and audit gaps; Golf consolidates threat detection, policy enforcement, and logging across all servers through a single gateway.
3. How does Golf handle compliance requirements? It provides granular audit trails with request/response logging, RBAC enforcement, and data flow tracing to meet standards like GDPR and HIPAA for MCP-based systems.
4. Can Golf scale with large MCP deployments? Yes, its Go-based proxy architecture supports horizontal scaling, maintaining low latency even when managing hundreds of MCP servers with complex security rules.
5. Does Golf require code changes to existing MCP servers? No, it operates as a transparent layer in front of servers, though optional integration with the golfMCP framework automates schema compliance and endpoint hardening.