The MCP SDK's EventStore Lives in Memory. Here's What Happens When Your Server Restarts.
A new Python package called `mcp-persist` has been developed to address the lack of durable event storage in the Model Context Protocol (MCP) SDK. The default in-memory EventStore of the SDK is lost upon server restarts or when clients reconnect to different instances, breaking stream resumability. `mcp-persist` offers drop-in backends using SQLite, Redis, or PostgreSQL to ensure event data survives restarts and is accessible across multiple workers, thereby restoring stream resumability. AI
IMPACT Enables more robust and reliable real-time data streaming for applications using the MCP SDK, crucial for AI agent development.