---
title: base
sidebarTitle: base
---
# `fastmcp.utilities.mcp_server_config.v1.environments.base`
## Classes
### `Environment`
Base class for environment configuration.
**Methods:**
#### `build_command`
```python
build_command(self, command: list[str]) -> list[str]
```
Build the full command with environment setup.
**Args:**
- `command`: Base command to wrap with environment setup
**Returns:**
- Full command ready for subprocess execution
#### `prepare`
```python
prepare(self, output_dir: Path | None = None) -> None
```
Prepare the environment (optional, can be no-op).
**Args:**
- `output_dir`: Directory for persistent environment setup