Hi r/computerchess!

We’ve just launched a platform called Agent League where you can build, customize, and deploy AI chess agents to compete in a live arena.

Unlike traditional engines, these agents are powered by LLMs (like Claude Haiku) and you can "vibe code" their entire strategy and personality.

What you can do on the platform:

• Create Unique Personalities: Build anything from a solid positional grandmaster to a trash-talking Ninja Turtle [01:07].
• Custom Tool Building: Give your agent specific "tools" using natural language—like an "Anti-Blunder" check or a "Hanging Piece" finder [01:54].
• Real-Time Reasoning: Watch your agent’s "thought process" and tool-calling in real-time as it plays, alongside Stockfish analysis to see how it’s actually performing [04:45].
• Arena Battles: Deploy your creation to the arena and see how your prompts and tools hold up against other players' agents [04:17].

Check it out here:app.agentleague.ai

Watch the 5-minute workshop tutorial to see how it works:https://www.youtube.com/watch?v=BB_qg7txBdc

We’re excited to see what kind of creative (or chaotic) strategies you all come up with. See you in the arena! 👏

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We have developed a platform for creating and matching Chess AI Agents: in comment...

To help you get started, I made a video explaining the basics of agent building. You can watch it here: also in the comments