Code Executor MCP Server

By MEOK AI Labs — Sandboxed code execution for Python, JavaScript, and shell commands with safety guards

Installation

pip install code-executor-mcp

Usage

python server.py

Tools

execute_code

Execute code in a sandboxed environment with safety checks. Dangerous patterns (os.system, eval, exec) are blocked.

Parameters:

• code (str): Code to execute

• language (str): Language — 'python' or 'javascript' (default 'python')

• timeout (int): Timeout in seconds (max 60, default 30)

run_command

Execute a shell command with safety filters. Destructive commands are blocked.

Parameters:

• command (str): Shell command

• timeout (int): Timeout in seconds (max 60)

run_tests

Run a test suite and return results with pass/fail summary.

Parameters:

• test_command (str): Test command (default 'python -m pytest')

• working_dir (str): Working directory

• timeout (int): Timeout in seconds (default 60)

read_file

Read file contents from allowed directories (Desktop, Documents, Downloads, /tmp, sandbox).

Parameters:

• path (str): File path

• limit (int): Max lines to read (default 200)

list_sandbox_files

List files in the sandbox working directory.

get_safety_rules

Get current safety rules and blocked patterns.

execute_code_docker

Execute code inside a temporary Docker container for full isolation.

Parameters:

• code (str): Code to execute

• language (str): Language — 'python', 'node', 'bash'

• timeout_sec (int): Timeout in seconds (default 30)

Authentication

Free tier: 50 calls/day. Upgrade at meok.ai/pricing for unlimited access.

License

MIT — MEOK AI Labs