Pi Agent extension that bridges MCP servers to the LLM via two dynamic-context tools (CallMcpTool + FetchMcpResource). Filesystem-is-everything: each MCP server is described by meta.json + tools/*.json, loaded into context on session start.
The Stan Math Library is a C++ template library for automatic differentiation of any order using forward, reverse, and mixed modes. It includes a range of built-in functions for probabilistic modeling, linear algebra, and equation solving.
RunAPI Suno SDK for text-to-music, lyric generation and blending, cover audio, music extension, stem separation, voice validation phrase, custom voice, and related audio workflows in JavaScript, Python, Ruby, Go, Java, and PHP