Bringing streamable HTTP transport and Python language support to MCP servers
Apr 30, 2025Jeremy Morrell, Dan Lapid
Summary
Introduced Streamable HTTP transport for MCP, allowing bidirectional communication over a single endpoint and dynamic upgrades to SSE for streaming responses. Added Python language support for building MCP servers on Cloudflare Workers using the Python MCP SDK and FastAPI-MCP. Provided code examples for configuring MCP servers to support both SSE and Streamable HTTP transports concurrently, and for defining tools and resources in Python MCP servers.
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