horizOn MCP Server

by projectmakersdeio.github.ProjectMakersDE/horizon-mcpv1.7.0

Docs, live API tools and prompts for the horizOn game backend in Godot, Unity and Unreal.

0Node.jsstdioofficial registry

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Active7d ago

Install horizOn MCP server

claude mcp add horizon -e HORIZON_API_KEY='<horizon-api-key>' -e HORIZON_ACCOUNT_API_KEY='<horizon-account-api-key>' -- npx -y horizon-mcp

{
  "mcpServers": {
    "horizon": {
      "command": "npx",
      "args": [
        "-y",
        "horizon-mcp"
      ],
      "env": {
        "HORIZON_API_KEY": "<horizon-api-key>",
        "HORIZON_ACCOUNT_API_KEY": "<horizon-account-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "horizon": {
      "command": "npx",
      "args": [
        "-y",
        "horizon-mcp"
      ],
      "env": {
        "HORIZON_API_KEY": "<horizon-api-key>",
        "HORIZON_ACCOUNT_API_KEY": "<horizon-account-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "horizon": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "horizon-mcp"
      ],
      "env": {
        "HORIZON_API_KEY": "<horizon-api-key>",
        "HORIZON_ACCOUNT_API_KEY": "<horizon-account-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "horizon": {
      "command": "npx",
      "args": [
        "-y",
        "horizon-mcp"
      ],
      "env": {
        "HORIZON_API_KEY": "<horizon-api-key>",
        "HORIZON_ACCOUNT_API_KEY": "<horizon-account-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
HORIZON_API_KEY	—	yes	horizOn project API key for the live API tools. The documentation works without it.
HORIZON_ACCOUNT_API_KEY	—	yes	horizOn account key for the dashboard admin tools.
HORIZON_BASE_URL	—	—	API base URL.

Freshness

Active — last maintenance signal 7d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-02 · 7d ago · GitHub
Latest release
2026-10-02 · 7d ago · GitHub · v1.7.0
Package published
no data · npm/PyPI
Registry entry updated
2026-10-02 · 7d ago · official registry · v1.7.0

FAQ

›How do I install the horizOn MCP server in Claude Code?

Run: claude mcp add horizon -e HORIZON_API_KEY='<horizon-api-key>' -e HORIZON_ACCOUNT_API_KEY='<horizon-account-api-key>' -- npx -y horizon-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does horizOn require an API key?

Yes. It expects HORIZON_API_KEY, HORIZON_ACCOUNT_API_KEY, of which 2 are secrets.

›Can I use horizOn as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is horizOn in the official MCP registry?

Yes, as io.github.ProjectMakersDE/horizon-mcp.

Install horizOn MCP server

Install in Claude Code

Install in Cursor

Install in Claude Desktop

Install in VS Code

Install in Windsurf

Configuration

Freshness

FAQ

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