`fastmcp.prompts.function_prompt`

Standalone @prompt decorator for FastMCP.

Functions

`prompt`

prompt(name_or_fn: str | Callable[..., Any] | None = None) -> Any

Standalone decorator to mark a function as an MCP prompt. Returns the original function with metadata attached. Register with a server using mcp.add_prompt().

Classes

`DecoratedPrompt`

Protocol for functions decorated with @prompt.

`PromptMeta`

Metadata attached to functions by the @prompt decorator.

`FunctionPrompt`

A prompt that is a function. Methods:

`from_function`

from_function(cls, fn: Callable[..., Any]) -> FunctionPrompt

Create a Prompt from a function. Args:

fn: The function to wrap
metadata: PromptMeta object with all configuration. If provided, individual parameters must not be passed.
name, title, etc.: Individual parameters for backwards compatibility. Cannot be used together with metadata parameter.

The function can return:

str: wrapped as single user Message
list[Message | str]: converted to list[Message]
PromptResult: used directly

`render`

render(self, arguments: dict[str, Any] | None = None) -> PromptResult

Render the prompt with arguments.

⌘I

fastmcp.apps

fastmcp.cli

fastmcp.client

fastmcp.experimental

fastmcp.prompts

fastmcp.resources

fastmcp.server

fastmcp.tools

fastmcp.utilities

function_prompt

`fastmcp.prompts.function_prompt`

Functions

`prompt`

Classes

`DecoratedPrompt`

`PromptMeta`

`FunctionPrompt`

`from_function`

`render`

​fastmcp.prompts.function_prompt

​Functions

​prompt

​Classes

​DecoratedPrompt

​PromptMeta

​FunctionPrompt

​from_function

​render

`fastmcp.prompts.function_prompt`

Functions

`prompt`

Classes

`DecoratedPrompt`

`PromptMeta`

`FunctionPrompt`

`from_function`

`render`