Astrocal MCP Server

by astrocal-devdev.astrocal/mcp-serverv0.1.6

AI-native scheduling: check availability, book meetings, cancel and reschedule via MCP

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security

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freshness

Maintained58d ago

Install Astrocal MCP server

claude mcp add astrocal -e ASTROCAL_API_KEY='<astrocal-api-key>' -- npx -y @astrocal/mcp-server

{
  "mcpServers": {
    "astrocal": {
      "command": "npx",
      "args": [
        "-y",
        "@astrocal/mcp-server"
      ],
      "env": {
        "ASTROCAL_API_KEY": "<astrocal-api-key>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "astrocal": {
      "command": "npx",
      "args": [
        "-y",
        "@astrocal/mcp-server"
      ],
      "env": {
        "ASTROCAL_API_KEY": "<astrocal-api-key>"
      }
    }
  }
}

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

{
  "servers": {
    "astrocal": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@astrocal/mcp-server"
      ],
      "env": {
        "ASTROCAL_API_KEY": "<astrocal-api-key>"
      }
    }
  }
}

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

{
  "mcpServers": {
    "astrocal": {
      "command": "npx",
      "args": [
        "-y",
        "@astrocal/mcp-server"
      ],
      "env": {
        "ASTROCAL_API_KEY": "<astrocal-api-key>"
      }
    }
  }
}

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

Configuration

Variable	Required	Secret	Description
ASTROCAL_API_KEY	yes	yes	Your Astrocal API key (create one at https://astrocal.dev/dashboard/connect)
ASTROCAL_API_URL	—	—	Custom API base URL (defaults to https://api.astrocal.dev)
ASTROCAL_DEFAULT_EVENT_TYPE_ID	—	—	Default event type ID when not specified in tool calls

Remote endpoints

streamable-httphttps://api.astrocal.dev/mcp

Freshness

Maintained — last maintenance signal 58d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-08-12 · 58d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-06-24 · 4mo ago · official registry · v0.1.6

FAQ

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

Run: claude mcp add astrocal -e ASTROCAL_API_KEY='<astrocal-api-key>' -- npx -y @astrocal/mcp-server. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Astrocal require an API key?

Yes. It expects ASTROCAL_API_KEY, of which 1 is a secret.

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

Yes — it offers both a hosted endpoint and a local stdio package.

›Is Astrocal in the official MCP registry?

Yes, as dev.astrocal/mcp-server.