The repl.it Code Evaluation API allows developers to run codes in builder applications or browsers. It provides two distinctive interface options; the HTTP interface and Websocket interface. The HTTP interface allows a user to execute a particular code or numerous files using single API calls. The Websocket interface, on the other hand, facilitates the execution of codes in stateful environments. This makes it possible for users to alternate the calls for defining and accessing variables. The repl.it Code Evaluation API stands out as a secure, multi-lingual, and interactive cloud-compliant solution that is flexible to a variety of devices and platforms. Its paid packages include the Standard Plan, Unlimited Plan, and Large Plan that charge monthly costs of $149, $300, and $1,300, respectively. There is also a free plan, although it offers limited runs compared tot eh paid options. The API is a full release and is accompanied by sufficient documentation.