How to Use the Fantastical MCP in Windsurf

Q: How does Cascade use Fantastical to resolve scheduling conflicts in Windsurf?

Cascade runs listevents to scan your calendar for overlapping blocks. If it finds a conflict, it uses updateevent to move things around without asking you for manual confirmation.

Q: Can I create task reminders using Fantastical and Windsurf?

Yes. Cascade calls createreminder to add tasks to your synced Apple Reminders or Todoist lists. It reads your current codebase TODOs and turns them into scheduled tasks instantly.

Q: What happens when an event is deleted?

The deleteevent tool permanently removes the entry from Fantastical. The change immediately syncs to your underlying Google Calendar, iCloud, or Outlook account.

Cascade handles your schedule. It parses natural language, manages proposals, and updates your calendar directly inside Windsurf.

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Connect Fantastical MCP to Windsurf

Create your Vinkius account to connect Fantastical to Windsurf and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Fantastical with Windsurf

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Perplexity

Cascade schedules meetings using natural language

The `create_event` tool lets Windsurf use this MCP Server to parse raw text like "lunch with Sarah tomorrow at 1" into a structured calendar entry. Cascade doesn't just write the event; it scans your active editor context to pull names and project details, then passes them straight to Fantastical. If a conflict pops up, Cascade uses `list_events` to check your availability. It then runs `update_event` to push things out, keeping you focused on writing code instead of dragging boxes around a calendar GUI.

Automated proposal tracking inside the Windsurf IDE

This MCP Server exposes `list_proposals` so Cascade can track active scheduling invites without you leaving your workspace. It checks which invitees have responded and which slots are still pending. When a proposal is finalized, the agent updates your local environment. Cascade chains these queries autonomously, keeping your team syncs aligned with your current branch commits.

Instant availability checks during deep work

The `list_openings` tool lets Cascade pull your Fantastical scheduling pages to see when you are actually free. It maps these openings against your local task list to protect your coding blocks. You specify your preferred work hours in Cascade. The agent then calls `get_opening` to make sure external clients can only book times that don't interrupt your current development sprint.

Setup guide

Set up Fantastical MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the Fantastical MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my Fantastical payment history." If connected, Cascade will call the Fantastical tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

{
  "mcpServers": {
    "fantastical-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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Common questions about Fantastical MCP in Windsurf

Cascade runs `list_events` to scan your calendar for overlapping blocks. If it finds a conflict, it uses `update_event` to move things around without asking you for manual confirmation.

Yes. Cascade calls `create_reminder` to add tasks to your synced Apple Reminders or Todoist lists. It reads your current codebase TODOs and turns them into scheduled tasks instantly.

Open your Settings, go to Cascade, and add the server configuration under the mcpServers key. You can also use the built-in MCP Marketplace for a one-click installation.

The `delete_event` tool permanently removes the entry from Fantastical. The change immediately syncs to your underlying Google Calendar, iCloud, or Outlook account.

Your calendar events, reminders, and scheduling proposals are processed locally in a secure V8 sandbox. Vinkius handles the authorization token, meaning your raw Fantastical credentials are never exposed to the LLM or stored on external servers.

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