Octos is an open-source AI agent platform that provides an API-first operating system for deploying and managing AI agents. It runs as a single 31MB Rust binary and offers ~140 REST endpoints for chat, sessions, profiles, skills, swarm coordination, and pipeline workflows. The system supports multiple LLM providers, multi-tenant isolation with 200+ profiles on standard hardware, and defines agent workflows as DOT graphs with per-node model routing.