HOPX MCP Server

Model Context Protocol (MCP) server for HOPX. Enables AI assistants to execute code in isolated cloud containers.

MCP Name: io.github.hopx-ai/hopx-mcp

Installation

uvx hopx-mcp

Get your API key at hopx.ai.

Capabilities

• Execute Python, JavaScript, Bash, and Go in isolated containers

• Data analysis with pandas, numpy, matplotlib (pre-installed)

• File operations and system commands

• Background processes and long-running tasks

Containers auto-destroy after use.

Configuration

Get API Key

Sign up at hopx.ai.

Configure IDE

Add MCP server configuration to your IDE:

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "hopx-sandbox": {
      "command": "uvx",
      "args": ["hopx-mcp"],
      "env": {
        "HOPX_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart Claude Desktop after configuration.

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "hopx-sandbox": {
      "command": "uvx",
      "args": ["hopx-mcp"],
      "env": {
        "HOPX_API_KEY": "your-api-key-here"
      }
    }
  }
}

Add to .vscode/mcp.json:

{
  "mcpServers": {
    "hopx-sandbox": {
      "command": "uvx",
      "args": ["hopx-mcp"],
      "env": {
        "HOPX_API_KEY": "your-api-key-here"
      }
    }
  }
}

Configuration format varies by IDE. Add these parameters:

• Command: uvx

• Args: ["hopx-mcp"]

• Environment: HOPX_API_KEY=your-api-key-here

Usage

Quick Execution

execute_code_isolated(
    code='print("Hello, World!")',
    language='python',
    timeout=30
)

Returns:

{
    'stdout': 'Hello, World!\n',
    'exit_code': 0,
    'execution_time': 0.123,
    'sandbox_id': '1762778786mxaco6r2'
}

Persistent Sandbox

For multiple operations in the same environment:

# Create sandbox
sandbox = create_sandbox(
    template_id='code-interpreter',
    timeout_seconds=3600
)

sandbox_id = sandbox['id']

# Run operations
execute_code(sandbox_id, 'import pandas as pd')
execute_code(sandbox_id, 'df = pd.read_csv("data.csv")')
file_write(sandbox_id, '/workspace/output.txt', 'results')
content = file_read(sandbox_id, '/workspace/output.txt')

# Cleanup
delete_sandbox(sandbox_id)

Available Tools

Sandbox Management:

• create_sandbox() - Create sandbox

• list_sandboxes() - List sandboxes

• delete_sandbox() - Terminate sandbox

Code Execution:

• execute_code_isolated() - One-shot execution (recommended)

• execute_code() - Execute in existing sandbox

• execute_code_background() - Long-running tasks

• execute_code_async() - Webhook callbacks for 30+ min tasks

File Operations:

• file_read(), file_write(), file_list()

• file_exists(), file_remove(), file_mkdir()

Commands:

• run_command() - Execute shell commands

• run_command_background() - Background processes

Environment:

• env_get(), env_set(), env_clear()

Supported Languages

• Python 3.11+ - pandas, numpy, matplotlib, scipy, scikit-learn, requests

• JavaScript/Node.js 20 - Standard libraries

• Bash - Unix utilities, git, curl, wget

• Go - Compilation support

Features

• Sandbox creation: ~200ms

• Container startup: ~0.1s

• Auto-cleanup: 600s (configurable)

• Internet access: Enabled by default

• Isolation: Complete per execution

• Authentication: JWT-based

Environment Variables

Required:

HOPX_API_KEY=your-api-key

Optional:

HOPX_BASE_URL=https://api.hopx.dev  # default

Troubleshooting

"401 Unauthorized"

API key not set or invalid.

Solution:

echo $HOPX_API_KEY  # Verify key is set

"Template not found"

Invalid template name.

Solution:

templates = list_templates(limit=20)  # Browse available templates

Slow First Execution

Container initializes in ~3 seconds after creation.

Cause: VM authentication setup Solution: Subsequent operations are immediate

Limitations

• Synchronous execution: Max 300 seconds

• Sandbox lifetime: Default 10 minutes (configurable)

• Template-specific language support

Security

Protected:

• Local system isolated from container execution

• Containers isolated from each other

• Auto-cleanup prevents resource leaks

• JWT authentication per sandbox

Considerations:

• Containers have internet access by default

• Code executed in HOPX cloud

• Follow your security policies for sensitive data

Support

• Documentation: docs.hopx.ai

• Issues: GitHub

• Email: support@hopx.ai

License

MIT License. See LICENSE for details.

HOPX Terms of Service: hopx.ai/terms

Technical Details

Built with:

• hopx-ai SDK v0.2.7

• FastMCP framework

• Model Context Protocol

Website | Documentation | GitHub