fastmcp/docs/python-sdk/fastmcp-prompts-prompt.mdx
2025-06-20 12:59:11 -05:00

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---
title: prompt
sidebarTitle: prompt
---
# `fastmcp.prompts.prompt`
Base classes for FastMCP prompts.
## Functions
### `Message`
```python
Message(content: str | MCPContent, role: Role | None = None, **kwargs: Any) -> PromptMessage
```
A user-friendly constructor for PromptMessage.
## Classes
### `PromptArgument`
An argument that can be passed to a prompt.
### `Prompt`
A prompt template that can be rendered with parameters.
**Methods:**
#### `to_mcp_prompt`
```python
to_mcp_prompt(self, **overrides: Any) -> MCPPrompt
```
Convert the prompt to an MCP prompt.
#### `from_function`
```python
from_function(fn: Callable[..., PromptResult | Awaitable[PromptResult]], name: str | None = None, description: str | None = None, tags: set[str] | None = None, enabled: bool | None = None) -> FunctionPrompt
```
Create a Prompt from a function.
The function can return:
- A string (converted to a message)
- A Message object
- A dict (converted to a message)
- A sequence of any of the above
### `FunctionPrompt`
A prompt that is a function.
**Methods:**
#### `from_function`
```python
from_function(cls, fn: Callable[..., PromptResult | Awaitable[PromptResult]], name: str | None = None, description: str | None = None, tags: set[str] | None = None, enabled: bool | None = None) -> FunctionPrompt
```
Create a Prompt from a function.
The function can return:
- A string (converted to a message)
- A Message object
- A dict (converted to a message)
- A sequence of any of the above