"LoopBack" matching MCP servers:

Enables developers to expose a selected local loopback web application as a temporary tester link and manage previews, feedback, evidence, and status through MCP tools.

Enables a sandboxed MCP client to use a stdio server that has to run outside the sandbox, by exposing that server over authenticated HTTP on 127.0.0.1. The sandbox only needs to permit a single loopback connection, and access is guarded by a bearer token with loopback-only binding and Host header checks.