Support for 2025-03-26 MCP Specification version

[iancanderson]

Today, a new version of the MCP spec was released: https://spec.modelcontextprotocol.io/specification/2025-03-26/changelog/

IMO the most interesting spec update is that SSE is now optional, so it's easier to host a remote HTTP server for cases that don't require streaming (can be stateless): https://spec.modelcontextprotocol.io/specification/2025-03-26/basic/transports/#streamable-http

Are there plans to update this SDK to support the new MCP spec?

BTW thanks for this library! 😄

[a67793581]

I plan to support

[Jinlkj]

pagination functionality supported, please look at this pr:#107 @iancanderson

[tendant]

Created a PR for a streamable HTTP server:

#228

Feedback and suggestions are very welcome.