Cal.com MCP Server for Mastra AIGive Mastra AI instant access to 12 tools to Cancel Booking, Create New Booking, Get Available Slots, and more
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect Cal.com through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
Ask AI about this App Connector for Mastra AI
The Cal.com app connector for Mastra AI is a standout in the Loved By Devs category — giving your AI agent 12 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
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: {
"calcom-alternative": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "Cal.com Agent",
instructions:
"You help users interact with Cal.com " +
"using 12 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with Cal.com?"
);
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 Cal.com MCP Server
Connect your Cal.com account to any AI agent and take full control of your professional scheduling infrastructure and meeting lifecycle through natural conversation.
Mastra's agent abstraction provides a clean separation between LLM logic and Cal.com tool infrastructure. Connect 12 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
- Meeting Orchestration — List and manage your meeting lifecycle programmatically, including creating new bookings and cancelling or rescheduling existing ones in real-time
- Availability Intelligence — Programmatically find free time slots for specific event types and date ranges to coordinate perfectly timed meetings
- Template Management — Access and monitor your complete directory of event types (templates) to ensure your high-fidelity scheduling options are always current
- Rule & Schedule Monitoring — Access your directory of availability schedules and working hours to oversee your time management programmatically
- Operational Visibility — Access high-fidelity metadata for your user profile and active webhooks directly through your agent for instant reporting
The Cal.com MCP Server exposes 12 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.
All 12 Cal.com tools available for Mastra AI
When Mastra AI connects to Cal.com through Vinkius, your AI agent gets direct access to every tool listed below — spanning meeting-automation, booking-infrastructure, availability-management, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.
Remove meeting
Schedule a meeting
Find free times
Get meeting info
Get template info
Get user settings
Get event configs
List working hours
List scheduled meetings
List booking templates
Update booking time
Check connection
Connect Cal.com to Mastra AI via MCP
Follow these steps to wire Cal.com into Mastra AI. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install dependencies
npm install @mastra/core @mastra/mcp @ai-sdk/openaiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.ts and run with npx tsx agent.tsExplore tools
Why Use Mastra AI with the Cal.com MCP Server
Mastra AI provides unique advantages when paired with Cal.com through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Cal.com 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 Cal.com 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
Cal.com + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the Cal.com MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query Cal.com, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed Cal.com as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query Cal.com on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using Cal.com tools alongside other MCP servers
Example Prompts for Cal.com in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with Cal.com immediately.
"List all my upcoming bookings for the next 7 days."
"Find available slots for a 'Discovery Call' tomorrow between 9 AM and 12 PM."
"Cancel my booking ID '12345' because of a conflict."
Troubleshooting Cal.com MCP Server with Mastra AI
Common issues when connecting Cal.com to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpCal.com + Mastra AI FAQ
Common questions about integrating Cal.com 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.