TheArena is a unified playground designed for agentic AI tasks, benchmarking, and game-based experiments. It provides a set of Model Context Protocol (MCP) servers, each implementing a specific domain such as agent flows, RPGs, chess, and Rubik’s Cube. This platform serves as a robust testbed for complex workflows requiring multi-step agent coordination, persistent environment state, and human-in-the-loop hooks, enabling users to run consistent benchmarks, prototype agentic automation pipelines, and compare model behaviors in controlled, game-like scenarios.