Golf
The enterprise firewall for MCP providers
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Golf Firewall is a security layer for companies that expose MCP servers to external AI agents. It sits in front of an MCP server and inspects what passes through, blocking prompt injection attempts, leaks of personally identifiable information, and exposure of credentials before that data reaches a customer's agent.
As MCP becomes a common way for agents to call company tools and data, it creates a new attack surface; Golf is aimed at controlling it.
It is aimed at companies building and publishing MCP servers as part of their product who need enterprise-grade controls over what those servers can return and what instructions they will act on.
AI-assisted draft, human-reviewed before publishing — see how we choose & review tools.
Why we picked it
Golf Firewall made the list for arriving right as MCP adoption creates a new attack surface companies haven't dealt with before — inspecting what flows through an MCP server for prompt injection and credential leaks before it reaches an external agent is a genuinely new category, not a rebrand of an old one.
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