Polycephaly is a Python module that allows you to easily create programs that are capable of parallel operations at the I/O and CPU levels. Email-like syntax for inter-process communications without external dependencies. Message routing through multiple backends. Message filters and callbacks. FIFO.

patchbay.pub is a free web service you can use to implement things like static site hosting, file sharing, cross-platform notifications, webhooks handling, smart home event routing, IoT reporting, job queues, chat systems, bots, etc, all completely cgi-bin and requiring no account creation or authentication. Most implementations need nothing but curl and simple bash snippets.

Github repo for a basic server: https://github.com/patchbay-pub/patchbay-simple-server

Github repo for CLI tools: https://github.com/patchbay-pub/patchbay

An online microblogging site for IoT stuff. Publish and subscribe to arbitrary data. Does not require an account to use (strangely), just publish and go. Has a REST API, responds with JSON. Stores one day of data history by default. You need to pay to get more storage. Realtime capable. Can alert on certain conditions. Multiple client libraries, including python modules.