CoAP
RFC 7252 The Constrained Application Protocol (CoAP)
UDPっぽいデータグラム指向トランスポート上で動作する組み込みなど向け軽量通信? REST準拠っぽい
RFC 9482 Constrained Application Protocol (CoAP) Transfer for the Certificate Management Protocol (CMP)
https://tex2e.github.io/rfc-translater/html/rfc9482.html
RFC 8323 CoAP (Constrained Application Protocol) over TCP, TLS, and WebSockets
RFC 7959 Block-Wise Transfers in the Constrained Application Protocol (CoAP)
RFC 6690 Constrained RESTful Environments (CoRE) Link Format
Cinstrained RESTful Environments (CoRE)