Module sse_proxy

SSE proxy implementation for MCP servers using Actix Web.

This module provides an HTTP and Server-Sent Events (SSE) proxy for MCP servers built on the Actix Web framework, allowing web clients to interact with MCP servers through a unified REST-like API.

The proxy handles HTTP routing, authentication, and SSE event streaming. It enables clients to:

• Subscribe to SSE events from MCP servers
• Make tool calls to MCP servers via JSON-RPC
• List available servers, tools, and resources
• Retrieve resources from MCP servers

This implementation uses Actix Web for improved performance, reliability, and maintainability compared to the custom HTTP implementation.

Re-exports

pub use self::proxy::SSEProxy;

pub use self::proxy::SSEProxyHandle;

pub use self::proxy::SSEProxyRunnerAccess;

pub use self::types::SSEEvent;

pub use self::types::SSEMessage;

pub use self::types::ServerInfo;

pub use self::types::ServerInfoUpdate;

Modules

actix_error

Actix Web error adapters for MCP Runner errors.

auth

Authentication middleware for the SSE proxy.

events

SSE event management for the Actix Web-based proxy.

handlers

HTTP request handlers for the Actix Web-based SSE proxy.

proxy

SSE proxy implementation for MCP servers using Actix Web.

types

Type definitions for the SSE proxy implementation.