The Hyper Text Coffee Pot Control Protocol (HTCPCP for short) is a protocol for controlling, monitoring, and diagnosing coffee pots.
HTCPCP is specified in the jocular RFC 2324, published on 1 April 1998. Although the RFC describing the protocol is an April Fools' Day joke and not to be taken seriously, it specifies the protocol itself accurately enough for it to be a real, non-fictional protocol. The editor Emacs actually includes a fully functional implementation of it, and a number of bug reports exist complaining about Mozilla's lack of support for the protocol. Ten years after the pu...