When you build the framework most MCP servers run on, you learn quickly that the questions are always the same: Who can call this tool? Under what conditions? Using which credentials? With what audit trail?
Horizon Gateway answers those questions at the infrastructure layer — authentication, access control, and audit logging enforced by the platform, not by prompts.
MCP Access Control
MCP RBAC down to the individual tool. Tie access to identity provider roles and groups so teams only see the tools they should actually use.
Separate permissions for discovering a server, using it, and managing it. Granular MCP governance instead of a binary allow or deny.
Authentication handled at the gateway. OAuth, SSO, and API key controls keep your underlying systems from ever exposing raw credentials to agents.
Every access attempt is logged, showing who called what, when, and whether they were allowed. Usage dashboards and audit trails give security teams the visibility they actually need.
The Risk
Vibe governance is everywhere. Agents with access to billing systems, production databases, and customer credentials — constrained by nothing more than a system prompt asking them to “please be careful.” You already know how that ends.
That's not MCP server security. That's a breach report waiting to be written.
Horizon Gateway turns MCP tools into governed capabilities. Every tool invocation passes through the gateway, where authentication is verified, permissions are enforced, and access is logged. Your agents get exactly the capabilities they need, nothing more and nothing less.
Start free, then layer on enterprise governance as your MCP footprint grows.