cli

fastmcp.utilities.cli

Functions

is_already_in_uv_subprocess

is_already_in_uv_subprocess() -> bool

Check if we’re already running in a FastMCP uv subprocess.

load_and_merge_config

load_and_merge_config(server_spec: str | None, **cli_overrides) -> tuple[MCPServerConfig, str]

Load config from server_spec and apply CLI overrides.

This consolidates the config parsing logic that was duplicated across run, inspect, and dev commands.

Args:

• server_spec: Python file, config file, URL, or None to auto-detect
• cli_overrides: CLI arguments that override config values

Returns:

• Tuple of (MCPServerConfig, resolved_server_spec)

log_server_banner

log_server_banner(server: FastMCP[Any]) -> None

Creates and logs a formatted banner with server information and logo.