Chessigma

Name: Chessigma
Author: mehdi-bh

by mehdi-bhversion 2.0.0i★ –iRuns in the cloud

Registry namecom.chessigma/chessigma

Install

Overview

Description from the maker (original English)

Chess opening guides and names, FEN and PGN checks, the daily chess puzzle and Elo estimates.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://www.chessigma.com/api/mcp

Run this in your terminal

claude mcp add --transport http chessigma https://www.chessigma.com/api/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "chessigma": {
      "url": "https://www.chessigma.com/api/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "chessigma": {
      "type": "http",
      "url": "https://www.chessigma.com/api/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://www.chessigma.com/api/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain chessigma.com (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

More stars than 0% of the other 32371 servers in this category
Published to the registry more recently than 53% of the other 32371 servers in this category
Basic checks equal to or better than 100% of the other 32371 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Chessigma safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (2.0.0) reached the registry 34 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Opencu

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

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Runs on your computer★ 440MITUpdated 14 months ago

Install

Remote Desktop Commander

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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Opencu

by Daily-AC

Independent local computer-use engine and MCP server for macOS, Windows, Linux and Android

Runs on your computerUpdated today

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Chessigma MCP server

Chess tools for Claude, ChatGPT and any MCP client, from Chessigma: opening guides, the opening behind any moves, position and game facts, review links for Chess.com and Lichess games, the daily puzzle and Elo estimates. Read-only, no account, no sign-in.

Server URL: https://www.chessigma.com/api/mcp (Streamable HTTP, no authentication)
Documentation: https://www.chessigma.com/developers/mcp

The server runs on chessigma.com, so there is nothing to install. This repository holds its public description and the server.json published to the official MCP Registry.

Connect

Claude (web, desktop and mobile apps): add Chessigma from Claude's connector directory, or search for Chessigma in Customize > Connectors. No account or sign-in.

Claude Code

claude mcp add --transport http chessigma https://www.chessigma.com/api/mcp

Cursor (~/.cursor/mcp.json)

{ "mcpServers": { "chessigma": { "url": "https://www.chessigma.com/api/mcp" } } }

VS Code (.vscode/mcp.json)

{ "servers": { "chessigma": { "type": "http", "url": "https://www.chessigma.com/api/mcp" } } }

ChatGPT and other clients: add a remote MCP server with the URL above, Streamable HTTP, no authentication.

Tools

Tool	What it does
`get_opening_guide`	Chessigma's guide to an opening by name: main line, key variations and the ideas for each side. Popular openings have a full guide; any of about 3,700 catalogued names returns its ECO code and moves.
`identify_opening`	Names the opening of a move sequence or PGN: ECO code, how long it followed theory, and the first move that left it.
`analyze_position`	Reads a FEN: side to move, check, mate or stalemate, every legal move, the material count and the opening name.
`analyze_game`	Summarizes a PGN: players, result, opening, how the game ended and the final position.
`review_online_game`	Turns a public Chess.com live game or Lichess game link into a link to its move-by-move review on Chessigma.
`get_daily_puzzle`	Today's puzzle, or any day's since 1 January 2024: the position, the solution and a link to play it.
`calculate_elo`	Estimates the rating change after one game with the Elo formula, with K-factor defaults for FIDE, Chess.com and Lichess.

The tools state facts from the rules of chess, an opening catalogue and Chessigma's puzzle archive; they do not run an engine. For engine analysis, their links open the Chessigma analysis board, where Stockfish runs in your browser.

Try asking

Teach me the Caro-Kann: main line, key variations and the ideas for both sides.
What opening is 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6?
Is Black checkmated here? r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4
Review this game for me: https://www.chess.com/game/live/173765478164
Show me today's chess puzzle and let me try to solve it.
I'm rated 1500 and just beat a 1650. How much Elo do I gain?

Privacy and limits

No tool writes data, calls an AI model or fetches another site while it runs, and the input you send is not stored. For rate limiting, each request's time, method, path, IP address and user agent are logged. All callers share 300 requests per minute. Details: privacy policy and terms.

Support

mehdi@chessigma.com

License

The contents of this repository are under the MIT License. The Chessigma name and logo are not.

Chessigma

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Opencu

README from the maker

Chessigma MCP server

Connect

Tools

Try asking

Privacy and limits

Support

License