MCP server for interacting with the Scryfall MTG API
BetterChess is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Chess MCP for Claude: engine analysis, attack maps, game review. One URL, no install.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http betterchess-mcp https://mcp.betterchess.co
# 2 — ask your agent for something these tools do
# chess_analyse, chess_attacks, chess_rig and 1 more
BetterChess costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http betterchess-mcp https://mcp.betterchess.coReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
4 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Returns an engine evaluation of a chess position: the strongest candidate moves with their scores, and the position's checkable facts — side to move, whether that side is in check, undefended pieces and the pieces attacking them, and the material balance. Accepts a FEN, a PGN, or a list of SAN moves from the starting position. Also reports what the OPPONENT would play if it were their turn, which
| Parameter | Type | Required | Notes |
|---|---|---|---|
| fen | string | no | FEN of the position. |
| pgn | string | no | PGN; the position after the final move is used. |
| moves | array | no | SAN moves from the start, e.g. ["e4","e5"]. |
| multipv | number | no | How many candidate moves (1-5, default 3). |
| considering | string | no | A move you are thinking of playing, in SAN, e.g. "Ng5". Returns the evaluation after it and the line that refutes it. |
| traps | boolean | no | Also scan the captures and checks available to the side to move and return the ones that lose, each with its refutation. Slower — several extra searches. |
Returns the exact list of squares attacked by the piece standing on a given square in a chess position, together with that piece's type and colour. Returns an empty list when the square is unoccupied. Accepts a FEN, a PGN, or a list of SAN moves from the starting position.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| fen | string | no | FEN of the position. |
| pgn | string | no | PGN; the position after the final move is used. |
| moves | array | no | SAN moves from the start, e.g. ["e4","e5"]. |
| square | string | yes | The square, e.g. "d5". |
Returns the JavaScript source of the in-page coaching rig for a chess.com bot game, to be run in that page by the browser's javascript tool. Once running, the page exposes window.__coachWait(ms) (resolves with events and board status), window.__coachWatch.status() (moves, fen, turn, myTurn, result) and window.__coach (beginDraw, play, dashed, label, step, say) for drawing on the board. Also return
No parameter schema on file.
Replays a finished game ply by ply with the engine and returns the moves where the evaluation swung by more than a threshold (default 1.5 pawns). Each entry gives the move number, the side that moved, the move played, the engine's preferred move, the size of the swing in pawns, the evaluation before and after, and the FEN of the resulting position. Accepts a PGN or a list of SAN moves, and can be
| Parameter | Type | Required | Notes |
|---|---|---|---|
| pgn | string | no | The finished game as PGN. |
| moves | array | no | Or SAN moves from the start. |
| colour | string | no | "white" or "black" — whose mistakes to report. Default both. |
| threshold | number | no | Swing in pawns that counts as a turning point. Default 1.5. |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install BetterChess or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.0.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish BetterChess can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.