fastmcp.tools.tool

Functions

default_serializer

default_serializer(data: Any) -> str

Classes

Tool

Internal tool registration info.

Methods:

to_mcp_tool

to_mcp_tool(self, **overrides: Any) -> MCPTool

from_function

from_function(fn: Callable[..., Any], name: str | None = None, description: str | None = None, tags: set[str] | None = None, annotations: ToolAnnotations | None = None, exclude_args: list[str] | None = None, serializer: Callable[[Any], str] | None = None, enabled: bool | None = None) -> FunctionTool

Create a Tool from a function.

from_tool

from_tool(cls, tool: Tool, transform_fn: Callable[..., Any] | None = None, name: str | None = None, transform_args: dict[str, ArgTransform] | None = None, description: str | None = None, tags: set[str] | None = None, annotations: ToolAnnotations | None = None, serializer: Callable[[Any], str] | None = None, enabled: bool | None = None) -> TransformedTool

FunctionTool

Methods:

from_function

from_function(cls, fn: Callable[..., Any], name: str | None = None, description: str | None = None, tags: set[str] | None = None, annotations: ToolAnnotations | None = None, exclude_args: list[str] | None = None, serializer: Callable[[Any], str] | None = None, enabled: bool | None = None) -> FunctionTool

Create a Tool from a function.

ParsedFunction

Methods:

from_function

from_function(cls, fn: Callable[..., Any], exclude_args: list[str] | None = None, validate: bool = True) -> ParsedFunction