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Support mcp SDK 2.0, which renamed FastMCP to MCPServer #23

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Merged
jph00 merged 1 commit into from
Aug 1, 2026
+3 −2
Merged

Support mcp SDK 2.0, which renamed FastMCP to MCPServer #23

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3 changes: 2 additions & 1 deletion clikernel/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -223,7 +223,8 @@ def _shutdown(signum, frame):


async def _serve(w, name, docs, instructions=None, eager=False):
from mcp.server.fastmcp import FastMCP
try: from mcp.server.mcpserver import MCPServer as FastMCP # mcp>=2 renamed FastMCP
except ImportError: from mcp.server.fastmcp import FastMCP # mcp 1.x
# When `eager`, start the worker before building the server so its banner (including startup output) is
# forwarded as the `instructions` field -- read once, at initialize; a later restart won't refresh what the
# client sees. Otherwise the worker stays unlaunched until first use and `instructions` is the static text.
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2 changes: 1 addition & 1 deletion pyproject.toml
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Expand Up @@ -19,7 +19,7 @@ dependencies = [
"ipython>=9.15.0",
"execnb>=0.2.9",
"fastcore",
"mcp",
"mcp>=1.2",
]

[project.optional-dependencies]
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