metacall

Enables direct function calls between languages like Python and JavaScript with minimal code, as shown in the README example where a Python sum function is invoked from JavaScript.

Supports over a dozen languages from modern ones like Rust to legacy systems like Cobol, allowing integration of diverse codebases without rewriting.

Can be integrated as a library into existing applications, facilitating incremental adoption of polyglot features without full architectural overhauls.

Runs on multiple operating systems, ensuring broad deployment flexibility in varied environments, as indicated by its cross-platform design.