fastmcp/docs/python-sdk/fastmcp-prompts-prompt_manager.mdx
2025-08-20 16:22:03 -04:00

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---
title: prompt_manager
sidebarTitle: prompt_manager
---
# `fastmcp.prompts.prompt_manager`
## Classes
### `PromptManager` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L21" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Manages FastMCP prompts.
**Methods:**
#### `mount` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L45" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
mount(self, server: MountedServer) -> None
```
Adds a mounted server as a source for prompts.
#### `has_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L91" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
has_prompt(self, key: str) -> bool
```
Check if a prompt exists.
#### `get_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L96" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompt(self, key: str) -> Prompt
```
Get prompt by key.
#### `get_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L103" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_prompts(self) -> dict[str, Prompt]
```
Gets the complete, unfiltered inventory of all prompts.
#### `list_prompts` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L109" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
list_prompts(self) -> list[Prompt]
```
Lists all prompts, applying protocol filtering.
#### `add_prompt_from_fn` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L116" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_prompt_from_fn(self, fn: Callable[..., PromptResult | Awaitable[PromptResult]], name: str | None = None, description: str | None = None, tags: set[str] | None = None) -> FunctionPrompt
```
Create a prompt from a function.
#### `add_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L136" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
add_prompt(self, prompt: Prompt) -> Prompt
```
Add a prompt to the manager.
#### `render_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/prompts/prompt_manager.py#L154" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
render_prompt(self, name: str, arguments: dict[str, Any] | None = None) -> GetPromptResult
```
Internal API for servers: Finds and renders a prompt, respecting the
filtered protocol path.