A webhook gateway is a management tool that serves as a proxy between webhook providers and consumers, facilitating the multiplexing and de-multiplexing of webhook events. It helps teams by providing a consistent infrastructure to handle webhook traffic efficiently, allowing for endpoint authentication, security, rate limiting, and failure notifications. By decoupling microservices from webhook implementations, webhook gateways enable routing of events to appropriate endpoints, enhancing developer efficiency and providing a scalable solution for peak traffic periods. Similar to API gateways, webhook gateways support multiple broker systems to prevent vendor lock-in, and Convoy is highlighted as the first open-source webhooks gateway designed to handle millions of webhooks effectively.