SqPlus : An easy to use binding system, utility classes and functions
Squadd The package of SQuirrel's ADDitions contains an advanced, template-based binding utility and a lot of useful classes.
DXSquirrel Is a simple application that wraps a very small portion of Direct3D. Is a good example of how to wrap C++ objects to squirrel (works with squirrel 2.x).
jkBind easy and elegant template-based C++ classes and functions binding system. Can be used to wrap classes into script virtual machines, such as Squirrel or Lua.
sqrat a C++ library for Squirrel that facilitates exposing classes and other native functionality to Squirrel scripts. It is similar to SqPlus, both in functionality and syntax, but seeks to address several issues present in other binding libraries.
Tools
SQDEV : An eclipse based development environment and remote debugger
SQDBG : A remote debugger library to work with SQDEV