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23 lines
864 B
Text
23 lines
864 B
Text
---
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title: mcp_operations
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sidebarTitle: mcp_operations
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---
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# `fastmcp.server.mixins.mcp_operations`
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MCP protocol handler setup and wire-format handlers for FastMCP Server.
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## Classes
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### `MCPOperationsMixin` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/mixins/mcp_operations.py#L44" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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Mixin providing MCP protocol handler setup and wire-format handlers.
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Note: Methods registered with SDK decorators (e.g., _list_tools_mcp, _call_tool_mcp)
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cannot use `self: FastMCP` type hints because the SDK's `get_type_hints()` fails
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to resolve FastMCP at runtime (it's only available under TYPE_CHECKING). When
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type hints fail to resolve, the SDK falls back to calling handlers with no arguments.
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These methods use untyped `self` to avoid this issue.
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