Metasmoke is a web dashboard for SmokeDetector, a bot that detects spam on the Stack Exchange network.
If you're looking to develop using the metasmoke API, there's documentation available in the wiki. You'll need an API key to access any of the routes; ping a metasmoke admin in Charcoal HQ.
Metasmoke is a pretty niche project, and we don't expect many people to make use of the entire thing as a whole. However, if you want to use the code, go right ahead - metasmoke is licensed under CC0. A small attribution is appreciated, but entirely non-compulsory.