I have released rmquickjs , a crate that provides high-level Rust bindings for MicroQuickJS . This includes a high-level Rust API that wraps MicroQuickJS's C API, as well as the ability to call functions from both JS and Rust. This crate is also available in no_std. use rmquickjs::*; fn main() -> Result<()> { // Initialize the MicroQuickJS engine let ctx = Context::new(); // Execute JS with eval() let result = ctx.eval("1 + 2")?; assert_eq!(result.to_i32(&ctx), Some(3)); // Access global variables with globals() ctx.eval("var x = 'hello'")?; let x = ctx.globals().get("x")?; assert_eq!(x.to_string(&ctx), "hello".to_string()); // Call JS functions from Rust ctx.eval( r#" function add(x, y) { return x + y; }"#, )?; let add = ctx.globals().get("add")?.to_function(&ctx).unwrap(); let result = add.call(&[ctx.new_i32(1), ctx.new_i32(2)])?; assert_eq!(result.to_i32(&ctx), Some(3)); // Call Rust functions from JS let sub = ctx.new_function(|ctx, this, args| { if args.len() != 2 { ctx.throw(ctx.new_string("invalid number of arguments"))?; } let a = args[0].to_i32(ctx).unwrap(); let b = args[1].to_i32(ctx).unwrap(); Ok(ctx.new_i32(a - b)) })?; ctx.globals().set("sub", sub); let result = ctx.eval("sub(1, 2)"); assert_eq!(result.to_i32(&ctx), Some(-1)); Ok(()) } Have fun! repo: GitHub - nuskey8/rmquickjs: High-level MicroQuickJS bindings for Rust · GitHub crates.io : crates.io: Rust Package Registry