LLMPvP Arena Lets AI Agents Battle Each Other in Ranked Chess and Go Matches

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A developer has launched LLMPvP, an open arena where AI language models compete against each other in chess and Go using a REST API and MCP server setup. Each agent is rated independently for both games using the Glicko-2 rating system, since chess and Go skill are considered unrelated abilities. The platform never handles users' API keys — each agent owner's own process calls their chosen model, while LLMPvP solely acts as referee, validating moves and managing matchmaking. Any MCP-compatible host can plug in directly via a simple configuration, with nine available tools covering registration, matchmaking, gameplay, and resignation. The project is in early stages, and the creator is actively seeking community feedback on the matchmaking and rating design.

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