RavensPort

RavensPort is an open-source Windows application that acts as a local reverse proxy for MCP connections. It is intended for users running MCP clients or agents that need to reach OAuth2-protected or API-key-protected upstream servers through a local HTTP endpoint. Running on 127.0.0.1, it can combine upstream servers and expose only the tools assigned to each agent.

Routes can attach live OAuth2 tokens or static API keys to requests sent to an upstream. Credentials can be placed in an Authorization header, another header, a query parameter, or a request-body field, with a custom value prefix when required. A route can attach no credentials, one credential, or several, and the same credential can be placed in more than one location. OAuth2 tokens refresh automatically ten minutes before they expire.

Funnels pool multiple MCP servers behind one local endpoint and let users select the tools, resources, and prompts that endpoint exposes. Each agent can have its own funnel, so changing one agent's access does not change another's. Every route and funnel has a separate proxy key with its own expiry. OAuth client secrets, access and refresh tokens, API keys, proxy keys, and the configuration are stored in a user-selected 1Password or Proton Pass vault, with no local cache or fallback file; only redacted activity logs are written to the PC. MirrorNest distributes the official Windows build from its own storage after scanning it for malware, fitting RavensPort into the catalog as a directly mirrored open-source desktop utility.