Option to mount SSE server to existing ASGI server#312
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Kludex merged 5 commits intomodelcontextprotocol:mainfrom Mar 19, 2025
Merged
Option to mount SSE server to existing ASGI server#312Kludex merged 5 commits intomodelcontextprotocol:mainfrom
Kludex merged 5 commits intomodelcontextprotocol:mainfrom
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Fixes modelcontextprotocol#311 Add option to mount SSE server to an existing ASGI server. * Add a new method `sse_app` in `src/mcp/server/fastmcp/server.py` to return an instance of the SSE server app. * Update the `run_sse_async` method in `src/mcp/server/fastmcp/server.py` to use the new `sse_app` method. * Update the documentation in `README.md` to include instructions on how to mount the SSE server to an existing ASGI server. * Fix the example in `README.md` to use `app.mount('/', mcp.sse_app())` instead. --- For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/modelcontextprotocol/python-sdk/issues/311?shareId=XXXX-XXXX-XXXX-XXXX).
Kludex
previously approved these changes
Mar 18, 2025
* Add `sse_app` method to return an instance of the SSE server app * Update `run_sse_async` method to use the new `sse_app` method Update `README.md` to include instructions for mounting SSE server * Add section on mounting the SSE server to an existing ASGI server
Kludex
previously approved these changes
Mar 18, 2025
| from fastapi import FastAPI | ||
| from mcp.server.fastmcp import FastMCP | ||
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| app = FastAPI() |
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Can you use starlette and link to the starlette docs about mounting instead?
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Sure. It seems more natural to use the Starlette example.
Kludex
previously approved these changes
Mar 18, 2025
Kludex
approved these changes
Mar 19, 2025
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Thanks @comfuture :) |
conorbranagan
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Mar 26, 2025
Small docs fix for modelcontextprotocol#312. The [actual code](https://github.com/comfuture/python-sdk/blob/d29e0e9ca33445285c04bc53bcebdda3b1986181/src/mcp/server/fastmcp/server.py#L22-L23) uses `starlette.routing` which is the correct package name.
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Fixes #311
Add option to mount SSE server to an existing ASGI server.
sse_appinsrc/mcp/server/fastmcp/server.pyto return an instance of the SSE server app.run_sse_asyncmethod insrc/mcp/server/fastmcp/server.pyto use the newsse_appmethod.README.mdto include instructions on how to mount the SSE server to an existing ASGI server.README.mdto useapp.mount('/', mcp.sse_app())instead.For more details, open the Copilot Workspace session.