I’ve got a bus-service API that must speak seamlessly with our AgentKit MCP platform through Zapier. What I need is a clean Zap built around a custom webhook that: • receives POST requests from the bus-service endpoint • authenticates every call via an API-Key header • queries the “trip availability” route supplied by the provider • parses the response and feeds the relevant availability data straight back to AgentKit MCP for the booking flow Once the Zap is live, I’ll run a few sample payloads; as long as the key is recognised, the request is processed, and the availability details appear inside AgentKit, we’re good. Please include concise setup notes so I can refresh the key or adjust endpoints later if required.