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56 lines
1.5 KiB
Text
56 lines
1.5 KiB
Text
---
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title: generative
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sidebarTitle: generative
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---
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# `fastmcp.apps.generative`
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GenerativeUI — a Provider that adds LLM-generated UI capabilities.
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Registers tools and resources from ``prefab_ui.generative`` so that an
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LLM can write Prefab Python code, execute it in a sandbox, and render
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the result as a streaming interactive UI.
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Requires ``fastmcp[apps]`` (prefab-ui).
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Usage::
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from fastmcp import FastMCP
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from fastmcp.apps.generative import GenerativeUI
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mcp = FastMCP("My Server")
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mcp.add_provider(GenerativeUI())
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## Classes
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### `GenerativeUI` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/apps/generative.py#L53" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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A Provider that adds generative UI capabilities to a server.
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Registers:
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- A ``generate_ui`` tool that accepts Prefab Python code, executes
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it in a Pyodide sandbox, and returns the rendered PrefabApp.
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Supports streaming via ``ontoolinputpartial``.
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- A ``components`` tool that searches the Prefab component library.
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- The generative renderer resource with CSP for Pyodide CDN access.
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Example::
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from fastmcp import FastMCP
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from fastmcp.apps.generative import GenerativeUI
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mcp = FastMCP("My Server")
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mcp.add_provider(GenerativeUI())
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**Methods:**
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#### `lifespan` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/apps/generative.py#L196" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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lifespan(self) -> AsyncIterator[None]
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```
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