MCP2HTTP is a minimal transport adapter that enables Model Context Protocol (MCP) clients using stdio transport to communicate with MCP servers over stateless HTTP. It bridges the gap between traditional stdio/SSE MCP transport and regular HTTP endpoints, facilitating integration with serverless platforms and legacy systems. The adapter handles basic transport conversion while offering optional session tracking through a client-generated UUID. It also filters server capabilities to reduce unnecessary load and drops notifications to align with HTTP's request/response architecture.