Can I cancel a booking using the agent?

Yes! Use the `cancel_booking` tool with the Booking ID. Your agent will trigger the cancellation in Cal.com, notifying all participants automatically.

How do I see the list of all my upcoming meetings?

Simply ask the agent to `list_bookings`. It will retrieve the list of all scheduled meetings from your Cal.com account, including start times and attendee details.

Does the integration allow creating a new event type?

Yes. Use the `create_event_type` action and provide the title, slug, and duration. The new scheduling template will be created in your account instantly.

Cal.com MCP Server for Pydantic AI 10 tools — connect in under 2 minutes

Name: Cal.com
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 10 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect Cal.com through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to Cal.com "
            "(10 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in Cal.com?"
    )
    print(result.data)

asyncio.run(main())

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Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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 orchestrate your scheduling, booking management, and availability through natural conversation.

Pydantic AI validates every Cal.com tool response against typed schemas, catching data inconsistencies at build time. Connect 10 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.

What you can do

Booking Oversight — List all your bookings and retrieve detailed metadata, including attendee info and statuses.
Event Type Management — List and retrieve detailed metadata for all your event types (templates).
Instant Scheduling — Create new bookings directly from your workspace for specific event types and times.
Availability Coordination — Access and monitor your schedules and memberships within organizations.
Booking Lifecycle — Cancel existing bookings using natural language when plans change.
Account Insights — Retrieve core profile information for the authenticated user.

The Cal.com MCP Server exposes 10 tools through the Vinkius. Connect it to Pydantic 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 Cal.com to Pydantic AI via MCP

Follow these steps to integrate the Cal.com MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 10 tools from Cal.com with type-safe schemas

Why Use Pydantic AI with the Cal.com MCP Server

Pydantic AI provides unique advantages when paired with Cal.com through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your Cal.com integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your Cal.com connection logic from agent behavior for testable, maintainable code

Cal.com + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the Cal.com MCP Server delivers measurable value.

Type-safe data pipelines: query Cal.com with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple Cal.com tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query Cal.com and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock Cal.com responses and write comprehensive agent tests

Cal.com MCP Tools for Pydantic AI (10)

These 10 tools become available when you connect Cal.com to Pydantic AI via MCP:

cancel_booking

This action cannot be undone. Cancel an existing booking

create_booking

The start time must be within an available slot. Create a new booking on a specific event type

create_event_type

Create a new event type (meeting template)

get_booking

Get detailed information about a specific booking

get_current_user

com profile information including name, email, timezone, and default schedule. Retrieve the authenticated user profile

get_event_type

Get detailed configuration of a specific event type

get_schedules

Each event type references one schedule. List all availability schedules

list_bookings

Use to audit your calendar schedule. List all bookings on your Cal.com account

list_event_types

Use to discover bookable event types. List all event types (meeting templates)

list_memberships

List organization and team memberships

Example Prompts for Cal.com in Pydantic AI

Ready-to-use prompts you can give your Pydantic AI agent to start working with Cal.com immediately.

"List all my upcoming bookings in Cal.com."

"Show the event types I have configured."

"Cancel booking with ID 99283."

Troubleshooting Cal.com MCP Server with Pydantic AI

Common issues when connecting Cal.com to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

Cal.com + Pydantic AI FAQ

Common questions about integrating Cal.com MCP Server with Pydantic AI.

How does Pydantic AI discover MCP tools?

Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.

Does Pydantic AI validate MCP tool responses?

Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.

Can I switch LLM providers without changing MCP code?

Absolutely. Pydantic AI abstracts the model layer. your Cal.com MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.