Signupgenius MCP Server

by chrischallio.github.chrischall/signupgenius-mcpv2.1.8

SignUpGenius for Claude — sign-ups, slots, groups, and RSVPs. Free accounts or Pro API key.

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Active3d ago

Install Signupgenius MCP server

claude mcp add signupgenius -e SIGNUPGENIUS_PASSWORD='<signupgenius-password>' -e SIGNUPGENIUS_USER_KEY='<signupgenius-user-key>' -- npx -y signupgenius-mcp

{
  "mcpServers": {
    "signupgenius": {
      "command": "npx",
      "args": [
        "-y",
        "signupgenius-mcp"
      ],
      "env": {
        "SIGNUPGENIUS_PASSWORD": "<signupgenius-password>",
        "SIGNUPGENIUS_USER_KEY": "<signupgenius-user-key>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "signupgenius": {
      "command": "npx",
      "args": [
        "-y",
        "signupgenius-mcp"
      ],
      "env": {
        "SIGNUPGENIUS_PASSWORD": "<signupgenius-password>",
        "SIGNUPGENIUS_USER_KEY": "<signupgenius-user-key>"
      }
    }
  }
}

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

{
  "servers": {
    "signupgenius": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "signupgenius-mcp"
      ],
      "env": {
        "SIGNUPGENIUS_PASSWORD": "<signupgenius-password>",
        "SIGNUPGENIUS_USER_KEY": "<signupgenius-user-key>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "signupgenius": {
      "command": "npx",
      "args": [
        "-y",
        "signupgenius-mcp"
      ],
      "env": {
        "SIGNUPGENIUS_PASSWORD": "<signupgenius-password>",
        "SIGNUPGENIUS_USER_KEY": "<signupgenius-user-key>"
      }
    }
  }
}

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

Configuration

Variable	Required	Secret	Description
SIGNUPGENIUS_EMAIL	—	—	SignUpGenius login email (recommended). Pair with SIGNUPGENIUS_PASSWORD for session mode — works on free accounts. No SSO/2FA.
SIGNUPGENIUS_PASSWORD	—	yes	SignUpGenius password (recommended) — required iff SIGNUPGENIUS_EMAIL is set.
SIGNUPGENIUS_USER_KEY	—	yes	SignUpGenius Pro API key (Pro Tools > API Management). Required only for slot REPORTS — Pro subscription needed.
SIGNUPGENIUS_NAME	—	—	Friendly account name used in startup logs.
SIGNUPGENIUS_BASE_URL	—	—	Override the default JSON API base (v2/k for key mode, v3 for session mode).
SIGNUPGENIUS_LEGACY_BASE_URL	—	—	Session mode only: override the host for legacy /SUGboxAPI.cfm calls. Defaults to https://www.signupgenius.com.
SIGNUPGENIUS_LOGIN_URL	—	—	Session mode only: override the login-form host. Defaults to https://www.signupgenius.com.
SIGNUPGENIUS_DISABLE_FETCHPROXY	—	—	Set to 1 to skip the fetchproxy browser-extension fallback (missing creds become a hard error — useful in headless CI).
SIGNUPGENIUS_SESSION_CACHE	—	—	Set to false to disable the on-disk session cache and re-authenticate on every process start. Defaults to enabled.
SIGNUPGENIUS_SESSION_FILE	—	—	Absolute path for the session cache file. Defaults to $MCP_DATA_DIR/.signupgenius-mcp/session.json.

Freshness

Active — last maintenance signal 3d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-07 · 3d ago · GitHub
Latest release
2026-10-07 · 3d ago · GitHub · v2.1.8
Package published
no data · npm/PyPI
Registry entry updated
2026-10-07 · 3d ago · official registry · v2.1.8

FAQ

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

Run: claude mcp add signupgenius -e SIGNUPGENIUS_PASSWORD='<signupgenius-password>' -e SIGNUPGENIUS_USER_KEY='<signupgenius-user-key>' -- npx -y signupgenius-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Signupgenius require an API key?

Yes. It expects SIGNUPGENIUS_PASSWORD, SIGNUPGENIUS_USER_KEY, of which 2 are secrets.

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

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

›Is Signupgenius in the official MCP registry?

Yes, as io.github.chrischall/signupgenius-mcp.