The Model Context Protocol (MCP) solves a real problem: every LLM integration reinvented its own tool-call format. MCP standardizes discovery and execution. The protocol is the easy part. The perimeter is the rest.
What MCP Hub adds
- A tool registry: each tool has a validated input schema (Zod), a version, and docs.
- Agents connect over stdio or HTTP and list available capabilities.
- Every call is logged (who, what, when) for audit.
Guardrails by default
- Command allow-list: the tool can only call what we declared.
- Sandbox: isolated execution, no network except whitelist.
- Quota: calls / window, to bound agent loops.
Without that, « give me a tool » becomes « give me an interpreter ». MCP makes integration clean; guardrails make it safe.