> ## Documentation Index
> Fetch the complete documentation index at: https://gofastmcp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# base

# `fastmcp.utilities.mcp_server_config.v1.environments.base`

## Classes

### `Environment` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/utilities/mcp_server_config/v1/environments/base.py#L7" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

Base class for environment configuration.

**Methods:**

#### `build_command` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/utilities/mcp_server_config/v1/environments/base.py#L13" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python theme={"theme":{"light":"snazzy-light","dark":"dark-plus"}}
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` <sup><a href="https://github.com/PrefectHQ/fastmcp/blob/main/src/fastmcp/utilities/mcp_server_config/v1/environments/base.py#L23" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python theme={"theme":{"light":"snazzy-light","dark":"dark-plus"}}
prepare(self, output_dir: Path | None = None) -> None
```

Prepare the environment (optional, can be no-op).

**Args:**

* `output_dir`: Directory for persistent environment setup