Python Code Validator MCP server

What it does

A hosted MCP server that performs static analysis, security scanning, and sandboxed execution of Python code. It exposes three tools—validate, repair, and execute—useful for developers and AI coding agents who want to verify that generated Python code is both safe and functionally correct against stated assertions.

• Run lint, type checks, and a security scan on a generated Python function before including it in a codebase.
• Provide assert or doctest examples as intent and let the service repair a buggy function until all examples pass in a sandboxed container.
• Integrate validation into CI to annotate pull request diffs with errors and block merges on syntax errors or unsafe patterns.

Tools this server exposes

Tool	Does
validate_python	Runs static checks—syntax, lint, type inference, security policy, bandit, and credential scan—on submitted Python code and returns a scored verdict.
repair_python	Attempts to fix Python code so that all provided assert or doctest examples pass, returning the corrected code only when every example is satisfied.
execute_python	Runs Python code and its provided examples inside a network-isolated, read-only container sandbox and reports whether each example produces the expected result.

Before you enable it

An MCP server runs with whatever access you give it. Start with a development account rather than production, and check which tools the server exposes before you let an agent call them unattended.