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25d550caf1Co-authored-by: marvin-context-protocol[bot] <225465937+marvin-context-protocol[bot]@users.noreply.github.com>
66 lines
2.1 KiB
Text
66 lines
2.1 KiB
Text
---
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title: prompts_as_tools
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sidebarTitle: prompts_as_tools
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---
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# `fastmcp.server.transforms.prompts_as_tools`
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Transform that exposes prompts as tools.
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This transform generates tools for listing and getting prompts, enabling
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clients that only support tools to access prompt functionality.
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The generated tools route through `ctx.fastmcp` at runtime, so all server
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middleware (auth, visibility, rate limiting, etc.) applies to prompt
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operations exactly as it would for direct `prompts/get` calls.
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Example:
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```python
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from fastmcp import FastMCP
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from fastmcp.server.transforms import PromptsAsTools
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mcp = FastMCP("Server")
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mcp.add_transform(PromptsAsTools(mcp))
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# Now has list_prompts and get_prompt tools
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```
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## Classes
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### `PromptsAsTools` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/transforms/prompts_as_tools.py#L38" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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Transform that adds tools for listing and getting prompts.
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Generates two tools:
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- `list_prompts`: Lists all prompts
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- `get_prompt`: Gets a specific prompt with optional arguments
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The generated tools route through the server at runtime, so auth,
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middleware, and visibility apply automatically.
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This transform should be applied to a FastMCP server instance, not
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a raw Provider, because the generated tools need the server's
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middleware chain for auth and visibility filtering.
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**Methods:**
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#### `list_tools` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/transforms/prompts_as_tools.py#L75" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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list_tools(self, tools: Sequence[Tool]) -> Sequence[Tool]
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```
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Add prompt tools to the tool list.
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#### `get_tool` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/server/transforms/prompts_as_tools.py#L83" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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get_tool(self, name: str, call_next: GetToolNext) -> Tool | None
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```
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Get a tool by name, including generated prompt tools.
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