GenPark Safe Eval Expression AST Sandbox

A zero-dependency MCP server that safely evaluates and validates mathematical and boolean expressions by parsing them into an AST.

What you can do

• Evaluate mathematical expressions safely by parsing them into an abstract syntax tree instead of executing raw code.
• Validate boolean and mathematical expressions before use, catching malformed input.
• No tool list is published, so exact tool names and argument shapes are not documented in the supplied material.

When to use it

Worth adding when an assistant needs to compute or check arithmetic or boolean expressions from untrusted or model-generated text without running arbitrary code, for example validating formulas or conditions in a workflow.

Requirements

Runs as a local process on the user's desktop via stdio, distributed as an MCPB package. No authentication, environment variables or headers are declared. Desktop only; not available as a web executable.