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Simplify proxy load

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This commit is contained in:
Jeremiah Lowin 2025-07-19 16:08:18 -04:00
commit ed57b4cd42
2 changed files with 9 additions and 10 deletions
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8
src/fastmcp/cli/cli.py
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@ -292,10 +292,10 @@ def run(
"""Run an MCP server or connect to a remote one.
The server can be specified in four ways:
1. Module approach: server.py - runs the module directly, looking for an object named 'mcp', 'server', or 'app'
2. Import approach: server.py:app - imports and runs the specified server object
3. URL approach: http://server-url - connects to a remote server and creates a proxy
4. MCPConfig file: mcp.json - runs as a proxy server for the MCP Servers in the MCPConfig file
1. Module approach: "server.py" - runs the module directly, looking for an object named 'mcp', 'server', or 'app'
2. Import approach: "server.py:app" - imports and runs the specified server object
3. URL approach: "http://server-url" - connects to a remote server and creates a proxy
4. MCPConfig file: "mcp.json" - runs as a proxy server for the MCP Servers in the MCPConfig file
Server arguments can be passed after -- :
fastmcp run server.py -- --config config.json --debug

11
src/fastmcp/cli/run.py
View file

@ -1,6 +1,7 @@
"""FastMCP run command implementation with enhanced type hints."""
import importlib.util
import json
import re
import sys
from pathlib import Path
@ -146,13 +147,11 @@ def create_client_server(url: str) -> Any:
def create_mcp_config_server(mcp_config_path: Path) -> FastMCP[None]:
"""Create a FastMCP server from a MCPConfig."""
from fastmcp import FastMCP
from fastmcp.client import Client
from fastmcp.client.transports import MCPConfigTransport
from fastmcp.mcp_config import MCPConfig
mcp_config = MCPConfig.from_file(mcp_config_path)
client = Client[MCPConfigTransport](mcp_config)
server = FastMCP.as_proxy(client)
with mcp_config_path.open() as src:
mcp_config = json.load(src)
server = FastMCP.as_proxy(mcp_config)
return server