modelcontextprotocol / modelcontextprotocol/python-sdk
Python SDK v2
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@maxisbey is already working on this.
Since Jan 16, 2026.
enhancement
P1
ready for work
v2
- Dominant language
- Python
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Description
I'll use this issue to add notes about what I think should happen for V2.
- Use snake case instead of camel case on
types.py(#97) - Don't use
RootModelontypes.py- It makes hard to reason about types. - Revisit generic classes, and add more default values for them #1207
- Rethink
ClientSessionGroup. It doesn't have a user-friendly API. - Rename
FastMCPtoMCPServer. - https://github.com/modelcontextprotocol/python-sdk/issues/12
I'll lock the issue, so only maintainers can comment, and I can focus on the things that I really think should be here.
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