ngrok.com
ngrok is developer infrastructure that routes and secures traffic to apps, APIs and AI models wherever they run, from localhost to production. It offers an AI Gateway, a gateway to services running anywhere, and localhost sharing. It provides a REST-style API at https://api.ngrok.com, plus client libraries, a CLI and a Terraform provider. A guide covers exposing a local MCP server with a stable public HTTPS URL secured by Traffic Policy.