# mountable.io MCP server

> Provides a shared POSIX filesystem for AI agents and teams to manage persistent files across Linux and macOS environments.

- Repository: https://github.com/writeitai/mountable
- Page: https://hostedmcp.org/servers/writeitai/mountable
- Transport: stdio
- Stars: 3
- License: Apache-2.0
- Latest version: 0.10.0

## Install

### Claude Code

```sh
claude mcp add --env MOUNTABLE_API_KEY=<YOUR_MOUNTABLE_API_KEY> mountable -- npx -y mountable-cli
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "mountable": {
      "command": "npx",
      "args": [
        "-y",
        "mountable-cli"
      ],
      "env": {
        "MOUNTABLE_API_KEY": "<YOUR_MOUNTABLE_API_KEY>"
      }
    }
  }
}
```

### VS Code (`.vscode/mcp.json`)

```json
{
  "servers": {
    "mountable": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mountable-cli"
      ],
      "env": {
        "MOUNTABLE_API_KEY": "<YOUR_MOUNTABLE_API_KEY>"
      }
    }
  }
}
```

### Claude Desktop (`claude_desktop_config.json`)

```json
{
  "mcpServers": {
    "mountable": {
      "command": "npx",
      "args": [
        "-y",
        "mountable-cli"
      ],
      "env": {
        "MOUNTABLE_API_KEY": "<YOUR_MOUNTABLE_API_KEY>"
      }
    }
  }
}
```

### Codex (`~/.codex/config.toml`)

```toml
[mcp_servers.mountable]
command = "npx"
args = ["-y", "mountable-cli"]

[mcp_servers.mountable.env]
MOUNTABLE_API_KEY = "<YOUR_MOUNTABLE_API_KEY>"
```

### Gemini CLI (`~/.gemini/settings.json`)

```json
{
  "mcpServers": {
    "mountable": {
      "command": "npx",
      "args": [
        "-y",
        "mountable-cli"
      ],
      "env": {
        "MOUNTABLE_API_KEY": "<YOUR_MOUNTABLE_API_KEY>"
      }
    }
  }
}
```

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `MOUNTABLE_API_KEY` | yes | yes | A management key (mtblm_) to create filesystems, keys and grants, or an API key (mtbl_) for tickets and webhooks. Stays on the MCP host. |
| `BACKEND_KEY` | no | no |  |
| `FS_ID` | no | no |  |

## FAQ

### How do I use mountable.io with an MCP client?

You can run the command `mountable mcp` to start the MCP server over stdio.

### Does mounting require special software on macOS?

No, mounting on macOS requires no additional software installed and does not require sudo.

### How can I provide credentials to a provisioning service?

You can set the MOUNTABLE_API_KEY environment variable with a management key to manage filesystems, API keys, and grants.