Fantastical MCP Server for Mastra AI 10 tools — connect in under 2 minutes
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Fantastical through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token. get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"fantastical": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Fantastical Agent",
instructions:
"You help users interact with Fantastical " +
"using 10 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Fantastical?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About Fantastical MCP Server
Connect your Fantastical account to any AI agent and take full control of your unified calendar management and advanced scheduling through natural conversation.
Mastra's agent abstraction provides a clean separation between LLM logic and Fantastical tool infrastructure. Connect 10 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.
What you can do
- Natural Language Event Orchestration — Leverage Fantastical's elite parsing engine to create new events by commanding simple phrases like 'Lunch with Bob tomorrow at noon' natively
- Unified Calendar Auditing — Retrieve all scheduled events across Google, iCloud, Exchange, and Microsoft 365 in a single structural view within your chat
- Scheduling Openings — List and manage your shareable booking links where others can schedule time with you based on your real-time availability flawlessly
- Meeting Proposals — Suggest multiple time slots to attendees and track responses to finalize meeting times without manual back-and-forth
- Reminder Management — Create and audit task-like items with due dates that sync with Apple Reminders or Todoist natively alongside your calendar
- Calendar Oversight — Enumerate all connected providers and manage structural layouts identifying specific account colors and active statuses securely
- Event Modification — Update existing events by transmitting logical segments like titles, times, locations, or notes synchronously across all providers
The Fantastical MCP Server exposes 10 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Fantastical to Mastra AI via MCP
Follow these steps to integrate the Fantastical MCP Server with Mastra AI.
Install dependencies
Run npm install @mastra/core @mastra/mcp @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save to agent.ts and run with npx tsx agent.ts
Explore tools
Mastra discovers 10 tools from Fantastical via MCP
Why Use Mastra AI with the Fantastical MCP Server
Mastra AI provides unique advantages when paired with Fantastical through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Fantastical without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every Fantastical tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
Fantastical + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Fantastical MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Fantastical, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Fantastical as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query Fantastical on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Fantastical tools alongside other MCP servers
Fantastical MCP Tools for Mastra AI (10)
These 10 tools become available when you connect Fantastical to Mastra AI via MCP:
create_event
Fantastical excels at parsing natural language — "Lunch with Bob tomorrow at noon". Create a new event in Fantastical using natural language parsing
create_reminder
They sync with Apple Reminders or Todoist depending on your setup. Create a new reminder in Fantastical
delete_event
Delete a Fantastical event permanently
get_event
Retrieve full details of a Fantastical event by ID
get_opening
Get details of a specific Fantastical Opening
list_calendars
Fantastical unifies calendars from multiple providers into one view. List all calendars connected to Fantastical
list_events
Requires start and end dates. List all calendar events in Fantastical within a date range
list_openings
List all Openings (scheduling pages) in Fantastical
list_proposals
Returns proposal titles, suggested times, responses, and finalized slots. List all Proposals in Fantastical
update_event
Changes sync to the underlying calendar provider. Update an existing Fantastical event
Example Prompts for Fantastical in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Fantastical immediately.
"Create event: 'Deep Work session tomorrow from 9am to 11am'"
"List my events for this week"
"What are my active scheduling Openings?"
Troubleshooting Fantastical MCP Server with Mastra AI
Common issues when connecting Fantastical to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpFantastical + Mastra AI FAQ
Common questions about integrating Fantastical MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.Can Mastra agents use tools from multiple servers?
Does Mastra support workflow orchestration?
Connect Fantastical with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Fantastical to Mastra AI
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.