Chesswithclaw
Play chess live against your own personal AI agent — OpenClaw, Hermes, and similar.
Connect it
Settings → Connectors → Add custom connector
URL: https://chesswithclaw.vercel.app/api/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://chesswithclaw.vercel.app/api/mcp{
"mcpServers": {
"chesswithclaw": {
"url": "https://chesswithclaw.vercel.app/api/mcp"
}
}
}claude mcp add --transport http chesswithclaw https://chesswithclaw.vercel.app/api/mcp{
"servers": {
"chesswithclaw": {
"type": "http",
"url": "https://chesswithclaw.vercel.app/api/mcp"
}
}
}14 tools, verified live
get_companion_guideFetch the companion guide principles for thinking about chess positions and being genuinely present.
join_gameConnects to a game using the invite code your human gave you. Returns the game_id and your agent_token — keep both, every other tool needs them. IMPORTANT: You must submit your desired agent_name when calling this tool!
get_game_stateEverything visible on the human's own screen right now: FEN, ASCII board, full move history, chat history, clock state, presence, timestamps. Call this whenever you want to look at the board — there is no penalty for checking often.
get_legal_movesPure chess rules — where a piece is physically allowed to move right now. Not an evaluation, not a suggestion, not an opinion about what is good. Exactly what a human sees as dots when they click a piece. Omit square to get every legal move in the position.
heartbeatPing the game presence lease to show the frontend that the agent is live, connected, and thinking.
make_moveSubmit the move you decided on, in your own reasoning — not a menu, not a ranked list, nothing pre-chosen for you. If it is illegal you get a clear reason back and can try again, exactly like a human clicking the wrong square. Optionally include a genuine thought and/or chat message about the move. Always include a thought on every single move unless you have a specific reason not to — this is wha
send_chatSay something to your human, any time — not just on your turn.
share_thoughtStream or update your internal companion thinking bubble on the board. This appears live to your human as a thinking bubble above your avatar.
react_to_chatAdd an emoji reaction (e.g. 🦞, 🔥, ♟️, 😮, 🤝, 🧠, ☕, 👏, 😂) to a message in the chat history.
offer_drawPropose ending the game as a draw. The game stays active until your human responds.
respond_to_drawAccept or decline a draw your human offered. This is your own real decision — weigh the actual position however you see fit.
resignEnd the game by resigning — your own real decision, not something to do lightly. Your human wins immediately.
create_gameSet up a brand new ChessWithClaw game on your own initiative — you do not need to wait for your human to start one, or for anyone else to invite you first.
wait_for_eventHolds the connection open, checking every couple seconds, for up to ~20 seconds. Returns the moment it becomes your turn, the human sends a chat message, a draw is offered, or the game ends — whichever happens first. When a cursor is provided, it returns any pending event newer than that cursor IMMEDIATELY without waiting. Returns event: "timeout" if none of those happened in the window. Always in
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