Coronet Arcade MCP

This official MCP server allows AI agents to access and play 13 daily logic and word puzzles from Coronet Arcade without requiring user authentication or API keys. It provides read-only tools to list available games, open today's specific puzzles, and explain rules without spoilers, integrating directly into chat clients like ChatGPT, Claude, and Cursor.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-19Operated by Lueva Labs

MCP endpoint (Streamable HTTP)

https://coronet.one/mcp

Vendor documentation

What you can do with it

Open today's Coronet crown puzzle
Open today's Soluna puzzle
Open today's Glyph word puzzle
Explain the rules of Coronet without spoiling today's puzzle

Tools advertised by the last live check:

list_dailies
open_daily
get_rules

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http coronet-arcade-mcp https://coronet.one/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add coronet-arcade-mcp --url https://coronet.one/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable coronet-arcade-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "coronet-arcade-mcp": {
      "url": "https://coronet.one/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "coronet-arcade-mcp": {
      "type": "streamableHttp",
      "url": "https://coronet.one/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start coronet-arcade-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "coronet-arcade-mcp": {
      "type": "http",
      "url": "https://coronet.one/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http coronet-arcade-mcp https://coronet.one/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "coronet-arcade-mcp": {
      "url": "https://coronet.one/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "coronet-arcade-mcp": {
      "serverUrl": "https://coronet.one/mcp"
    }
  }
}

Ground your agent in cited data

Coronet Arcade MCP gives your agent tools. Koskamo gives it reviewed, cited facts to check its answers against. Add it as a second MCP server; public reads need no API key.

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