OpenCPU is a system for embedded scientific computing and reproducible research. The OpenCPU server provides a reliable and interoperable HTTP API for data analysis based on R.
The OpenCPU JavaScript client library provides the most seamless integration of R and JavaScript available today.
OpenCPU uses standard R packaging to develop, ship and deploy web applications. Several open source example apps are available from Github.
Installing your own OpenCPU server is super easy and only takes a few minutes.
More at https://www.opencpu.org/