Zilla MCP Gateway
Every API you run, served as MCP tools
One governed MCP endpoint for every internal API and remote MCP server. Tools generated from the OpenAPI specs you already maintain. Per-user identity on every call. Deployed inside your perimeter, so prompts, payloads, and credentials never leave it.

The Production gap
MCP works in a demo. Production asks harder questions.
How do hundreds of internal APIs become tools?
The common answer is a wrapper farm: one hand-written MCP server per system, each with its own auth, hosting, and owner.
Who is the user behind the tool call?
Agents authenticate as service accounts. Downstream systems log the agent's credentials, and the human disappears from the audit trail.
What do 400 tools do to a context window?
Every exposed tool costs tokens on every request, whether the agent needs it or not.

The Solution
A transparent proxy, not an execution engine.
Agents connect once. The gateway validates identity, applies authorization, and returns a unified catalog of tools, resources, and prompts across every MCP server and API —namespaced to prevent collisions.
Calls go straight to the real backend. Every MCP method is forwarded end to end. The gateway never terminates the protocol or runs tool logic.






