Cymbeline is an Python application server framework that includes functionality such as database and arbitrary object pooling, Web servers (including SSL), a persistent object repository, and a text console. It was originally designed as an administrative shell for an embedded system, but has since morphed into a more general purpose, run anywhere toolkit.
Tntnet is a Web application server for generating Web applications in C++. HTML pages with some additional tags for inclusion of C++ code are compiled into shared libraries and served from tntnet. It resembles PHP, JSP, or Mason, but the programming language used is C++, and the pages are compiled into native code before serving. Tntnet is fully multithreaded and supports HTTP keep-alive for best performance. Its dynamic pages are faster than static pages with other Web servers, while creating Web applications is simple.
KLone is a fully-featured, multi-platform framework which allows dynamic Web pages to be written in C/C++ (with the usual <% /* code */ %> style). The pages can then be embedded (in compressed and/or encrypted form) into a single executable that also contains KLone's high-performance HTTP/S server. Given its nature, it can be linked natively to any C/C++ library (database, XML, graphics, etc.), without an intermediate layer, and it is especially suited for low-resource (embedded) systems.
CAILogin is an image-based user verification program for Web page logins. It has no special dependencies, so it's suitable for embedded systems which lack "big" interpreted languages, such as PHP, Python, or Perl. It features a command line interface, which allows it to be very seamlessly integrated into shell scripts. It works by generating images of random numbers, on which it applies several obscuration filters. The end result is an image from which it is very difficult to extract the displayed number with current AI technologies.
uRadiusLib is a full, small, and easy to use C RADIUS client library. It includes full AAA example code with complete attribute sets. It provides AAA via a very easy C API for your applications. It is based on the Cistron and Livingstone radiusd code. It was originally designed to be used in embedded Linux applications with uClibC/Buildroot or similar, but can be used anywhere.