# How to integrate Google Calendar MCP with Claude Agent SDK

```json
{
  "title": "How to integrate Google Calendar MCP with Claude Agent SDK",
  "toolkit": "Google Calendar",
  "toolkit_slug": "googlecalendar",
  "framework": "Claude Agent SDK",
  "framework_slug": "claude-agents-sdk",
  "url": "https://composio.dev/toolkits/googlecalendar/framework/claude-agents-sdk",
  "markdown_url": "https://composio.dev/toolkits/googlecalendar/framework/claude-agents-sdk.md",
  "updated_at": "2026-05-12T10:13:51.567Z"
}
```

## Introduction

This guide walks you through connecting Google Calendar to the Claude Agent SDK using the Composio tool router. By the end, you'll have a working Google Calendar agent that can create a meeting with the marketing team, list all events scheduled for next week, delete tomorrow’s canceled event from your calendar through natural language commands.
This guide will help you understand how to give your Claude Agent SDK agent real control over a Google Calendar account through Composio's Google Calendar MCP server.
Before we dive in, let's take a quick look at the key ideas and tools involved.

## Also integrate Google Calendar with

- [ChatGPT](https://composio.dev/toolkits/googlecalendar/framework/chatgpt)
- [OpenAI Agents SDK](https://composio.dev/toolkits/googlecalendar/framework/open-ai-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/googlecalendar/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/googlecalendar/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/googlecalendar/framework/codex)
- [Cursor](https://composio.dev/toolkits/googlecalendar/framework/cursor)
- [VS Code](https://composio.dev/toolkits/googlecalendar/framework/vscode)
- [OpenCode](https://composio.dev/toolkits/googlecalendar/framework/opencode)
- [OpenClaw](https://composio.dev/toolkits/googlecalendar/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/googlecalendar/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/googlecalendar/framework/cli)
- [Google ADK](https://composio.dev/toolkits/googlecalendar/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/googlecalendar/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/googlecalendar/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/googlecalendar/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/googlecalendar/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/googlecalendar/framework/crew-ai)

## TL;DR

Here's what you'll learn:
- Get and set up your Claude/Anthropic and Composio API keys
- Install the necessary dependencies
- Initialize Composio and create a Tool Router session for Google Calendar
- Configure an AI agent that can use Google Calendar as a tool
- Run a live chat session where you can ask the agent to perform Google Calendar operations

## What is Claude Agent SDK?

The Claude Agent SDK is Anthropic's official framework for building AI agents powered by Claude. It provides a streamlined interface for creating agents with MCP tool support and conversation management.
Key features include:
- Native MCP Support: Built-in support for Model Context Protocol servers
- Permission Modes: Control tool execution permissions
- Streaming Responses: Real-time response streaming for interactive applications
- Context Manager: Clean async context management for sessions

## What is the Google Calendar MCP server, and what's possible with it?

The Google Calendar MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Google Calendar account. It provides structured and secure access to your calendars and events, so your agent can schedule meetings, create or modify events, list upcoming appointments, and manage calendars—all on your behalf.
- Automated event creation and scheduling: Easily instruct your agent to add new events, meetings, or reminders with specific times, attendees, and details.
- Event listing and agenda overview: Have your agent list all upcoming, past, or filtered events on any of your calendars to keep you on top of your schedule.
- Calendar management and customization: Direct your agent to create new calendars, update calendar details, or even insert calendars into your list for better organization.
- Event updating and deletion: Let your agent modify existing events or remove events that are no longer needed, keeping your calendar up to date.
- Complete calendar clearing: Ask your agent to clear all events from a primary calendar or delete secondary calendars entirely when you need a fresh start.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `GOOGLECALENDAR_ACL_DELETE` | Delete ACL Rule | Deletes an access control rule from a Google Calendar. Use when you need to remove sharing permissions for a user, group, or domain. |
| `GOOGLECALENDAR_ACL_GET` | Get ACL Rule | Retrieves a specific access control rule for a calendar. Use when you need to check permissions for a specific user, group, or domain. |
| `GOOGLECALENDAR_ACL_INSERT` | Create ACL Rule | Creates an access control rule for a calendar. Use when you need to grant sharing permissions to a user, group, or domain. |
| `GOOGLECALENDAR_ACL_LIST` | List ACL Rules | Retrieves the list of access control rules (ACLs) for a specified calendar, providing the necessary 'rule_id' values required for updating specific ACL rules. |
| `GOOGLECALENDAR_ACL_PATCH` | Patch ACL Rule | Updates an existing access control rule for a calendar using patch semantics (partial update). This allows modifying specific fields without affecting other properties. IMPORTANT: The ACL rule must already exist on the calendar. This action cannot create new rules. If you receive a 404 Not Found error, the rule does not exist - use ACL insert to create it first, or use ACL list to verify available rules. Each patch request consumes three quota units. For domain-type ACL rules, if PATCH fails with 500 error, this action will automatically fallback to UPDATE method. |
| `GOOGLECALENDAR_ACL_UPDATE` | Update ACL Rule | Updates an access control rule for the specified calendar. |
| `GOOGLECALENDAR_ACL_WATCH` | Watch ACL Changes | Tool to watch for changes to ACL resources. Use when you need to set up real-time notifications for access control list modifications on a calendar. |
| `GOOGLECALENDAR_BATCH_EVENTS` | Batch Events | Execute up to 1000 event mutations (create/patch/delete) in one Google Calendar HTTP batch request with per-item status/results. Use this to materially reduce round-trips for bulk operations like migrations, cleanup, or large-scale updates. |
| `GOOGLECALENDAR_CALENDAR_LIST_DELETE` | Remove Calendar from List | Tool to remove a calendar from the user's calendar list. Use when you need to unsubscribe from or hide a calendar from the user's list. |
| `GOOGLECALENDAR_CALENDAR_LIST_GET` | Get Single Calendar by ID | Retrieves metadata for a SINGLE specific calendar from the user's calendar list by its calendar ID. This action requires a calendarId parameter and returns details about that one calendar only. NOTE: This does NOT list all calendars. To list all calendars in the user's calendar list, use GOOGLECALENDAR_CALENDAR_LIST_LIST instead. |
| `GOOGLECALENDAR_CALENDAR_LIST_INSERT` | Insert Calendar into List | Inserts an existing calendar into the user's calendar list, making it visible in the UI. Calendars (e.g., newly created ones) won't appear in the list or UI until explicitly inserted. |
| `GOOGLECALENDAR_CALENDAR_LIST_PATCH` | Patch Calendar List Entry | Updates an existing calendar on the user's calendar list using patch semantics. This method allows partial updates, modifying only the specified fields. |
| `GOOGLECALENDAR_CALENDAR_LIST_UPDATE` | Update Calendar List Entry | Updates a calendar list entry's display/subscription settings (color, visibility, reminders, selection) for the authenticated user — does not modify the underlying calendar resource (title, timezone, etc.). To modify the calendar itself, use GOOGLECALENDAR_CALENDARS_UPDATE. |
| `GOOGLECALENDAR_CALENDAR_LIST_WATCH` | Watch Calendar List | Watch for changes to CalendarList resources using push notifications. Use this to receive real-time updates when calendar list entries are modified. |
| `GOOGLECALENDAR_CALENDARS_DELETE` | Delete Calendar | Deletes a secondary calendar that you own or have delete permissions on. Deletion is permanent and irreversible — verify the correct calendar_id before calling. You cannot delete your primary calendar or calendars you only have read/write access to. Use calendarList.list to find calendars with owner accessRole. For primary calendars, use calendars.clear instead. Parallel calls may trigger userRateLimitExceeded; sequence bulk deletions. |
| `GOOGLECALENDAR_CALENDARS_UPDATE` | Update Calendar | Full PUT-style update that overwrites all calendar metadata fields; unspecified optional fields are cleared. Use GOOGLECALENDAR_PATCH_CALENDAR to update only a subset of fields. Mutates the underlying calendar resource (title, description, timeZone, etc.); use GOOGLECALENDAR_CALENDAR_LIST_UPDATE to change per-user display properties like color. |
| `GOOGLECALENDAR_CHANNELS_STOP` | Stop Channel | Tool to stop watching resources through a notification channel. Use when you need to discontinue push notifications for a specific channel subscription. |
| `GOOGLECALENDAR_CLEAR_CALENDAR` | Clear Calendar | Clears a primary calendar by deleting all events from it. The calendar itself is preserved; only its events are removed. Primary calendars cannot be deleted entirely. |
| `GOOGLECALENDAR_COLORS_GET` | Get Color Definitions | Returns the color definitions for calendars and events. Use when you need to retrieve the available color palette for styling calendars or events. |
| `GOOGLECALENDAR_CREATE_EVENT` | Create Event | Create a Google Calendar event using start_datetime plus duration fields. The organizer is added as an attendee unless exclude_organizer is True. By default adds Google Meet link (works for Workspace, gracefully falls back for personal Gmail). Attendees can be email strings (required) or objects with email and optional fields. No conflict checking is performed; use GOOGLECALENDAR_FREE_BUSY_QUERY to detect overlaps before creating. Returns event id and htmlLink nested under data.response_data. Example: { "start_datetime": "2025-01-16T13:00:00", "timezone": "America/New_York", "event_duration_hour": 1, "event_duration_minutes": 30, "summary": "Client sync", "attendees": ["required@example.com", {"email": "optional@example.com", "optional": true}] } |
| `GOOGLECALENDAR_DELETE_EVENT` | Delete event | Deletes a specified event by `event_id` from a Google Calendar (`calendar_id`); idempotent — a 404 for an already-deleted event is a no-op. Bulk deletions may trigger `rateLimitExceeded` or `userRateLimitExceeded`; cap concurrency to 5–10 requests and apply exponential backoff. |
| `GOOGLECALENDAR_DUPLICATE_CALENDAR` | Create a calendar | Creates a new, empty Google Calendar with the specified title (summary). Newly created calendars default to UTC timezone; use GOOGLECALENDAR_PATCH_CALENDAR afterward to set the desired timeZone if needed. |
| `GOOGLECALENDAR_EVENTS_GET` | Get Event | Retrieves a SINGLE event by its unique event_id (REQUIRED). This action does NOT list or search events - it fetches ONE specific event when you already know its ID. If you want to list events within a time range, search for events, or filter by criteria like time_min/time_max, use GOOGLECALENDAR_EVENTS_LIST instead. |
| `GOOGLECALENDAR_EVENTS_IMPORT` | Import Event | Tool to import an event as a private copy to a calendar. Use when you need to add an existing event to a calendar using its iCalUID. Only events with eventType='default' can be imported. |
| `GOOGLECALENDAR_EVENTS_INSTANCES` | Get Event Instances | Returns instances of the specified recurring event. Use timeMin/timeMax to constrain the window; omitting bounds can return large result sets and is quota-heavy. On high-volume calls, 403 rateLimitExceeded or 429 too_many_requests may occur; apply exponential backoff (1s, 2s, 4s) before retrying. |
| `GOOGLECALENDAR_EVENTS_LIST` | List Events | Returns events on the specified calendar. TIMEZONE WARNING: When using timeMin/timeMax with UTC timestamps (ending in 'Z'), the time window is interpreted in UTC regardless of the calendar's timezone. For example, querying '2026-01-19T00:00:00Z' to '2026-01-20T00:00:00Z' on a calendar in America/Los_Angeles (UTC-8) covers 2026-01-18 4pm to 2026-01-19 4pm local time, potentially missing events on the intended local date. To query for a specific local date, use timestamps with the appropriate timezone offset in timeMin/timeMax (e.g., '2026-01-19T00:00:00-08:00' for PST). |
| `GOOGLECALENDAR_EVENTS_LIST_ALL_CALENDARS` | List Events from All Calendars | Return a unified event list across all calendars in the user's calendar list for a given time range. Use when you need a single view of all events across multiple calendars. An inverted or incorrect time range silently returns empty results rather than an error. An empty `items` list means no events matched the filters—adjust `time_min`, `time_max`, or `q` before concluding no events exist. |
| `GOOGLECALENDAR_EVENTS_MOVE` | Move Event | Moves an event to another calendar, i.e., changes an event's organizer. |
| `GOOGLECALENDAR_EVENTS_WATCH` | Watch Events | Watch for changes to Events resources. Watch channels expire; persist the channel `id` per `calendarId` to re-establish watches after expiration or restarts. |
| `GOOGLECALENDAR_FIND_EVENT` | Find event | Finds events in a specified Google Calendar using text query, time ranges (event start/end, last modification), and event types. Ensure `timeMin` is not chronologically after `timeMax` if both are provided. Results may span multiple pages; always follow `nextPageToken` until absent to avoid silently missing events. Validate the correct match from results by checking summary, start.dateTime, and organizer.email before using event_id for mutations. An empty `items` array means no events matched — widen filters rather than treating it as an error. |
| `GOOGLECALENDAR_FIND_FREE_SLOTS` | Find free slots | Finds both free and busy time slots in Google Calendars for specified calendars within a defined time range. If `time_min` is not provided, defaults to the current timestamp in the specified timezone. If `time_max` is not provided, defaults to 23:59:59 of the day specified in `time_min` (if provided), otherwise defaults to 23:59:59 of the current day in the specified timezone. Returns busy intervals and calculates free slots by finding gaps between busy periods; `time_min` must precede `time_max` if both are provided. This action retrieves free and busy time slots for the specified calendars over a given time period. It analyzes the busy intervals from the calendars and provides calculated free slots based on the gaps in the busy periods. Returned free slots are unfiltered by duration; callers must filter intervals to those fully containing the required meeting length. No event metadata (titles, descriptions, links) is returned; use GOOGLECALENDAR_EVENTS_LIST for event details. |
| `GOOGLECALENDAR_GET_CALENDAR` | Get Google Calendar | Retrieves a specific Google Calendar, identified by `calendar_id`, to which the authenticated user has access. Response includes `timeZone` (IANA format, e.g., 'America/Los_Angeles') — use it directly when constructing `timeMin`/`timeMax` in other tools to avoid DST errors. An empty `defaultReminders` list is valid (no defaults configured). Insufficient `accessRole` may omit fields like `defaultReminders` and `colorId`. |
| `GOOGLECALENDAR_GET_CURRENT_DATE_TIME` | Get current date and time | Gets the current date and time, allowing for a specific timezone offset. Call this tool first before computing relative dates (e.g., 'tomorrow', 'next Monday') to avoid off-by-one-day errors across timezones. |
| `GOOGLECALENDAR_LIST_BUILDINGS` | List Buildings | Lists all buildings for a Google Workspace customer account with full details including addresses, coordinates, and floor names. Use this action when you need to retrieve the complete list of physical building locations configured in Google Workspace Calendar resources. This is useful for workspace administrators managing conference room and resource scheduling across multiple office buildings. Requires Google Workspace administrator privileges with Directory API access. |
| `GOOGLECALENDAR_LIST_CALENDAR_RESOURCES` | List Calendar Resources | Retrieves calendar resources (such as conference rooms) from a Google Workspace domain using the Admin SDK Directory API. Use this action when you need to list available meeting rooms, conference spaces, or other bookable calendar resources in an organization. The action supports filtering by resource category, capacity, building location, and other criteria. IMPORTANT: This requires Admin SDK Directory API access and appropriate admin permissions - it is NOT available for personal Gmail accounts, only Google Workspace domains. |
| `GOOGLECALENDAR_LIST_CALENDARS` | List Google Calendars | Retrieves calendars from the user's Google Calendar list, with options for pagination and filtering. Loop through all pages using nextPageToken until absent to avoid missing calendars. Use the primary flag and accessRole field from the response to identify calendars — display names are not valid calendar_id values. Read access (listing) does not imply write OAuth scopes. |
| `GOOGLECALENDAR_PATCH_CALENDAR` | Patch Calendar | Partially updates (PATCHes) an existing Google Calendar, modifying only the fields provided. At least one of summary, description, location, or timezone must be provided. Empty strings for `description` or `location` clear them. |
| `GOOGLECALENDAR_PATCH_EVENT` | Patch Event | Update specified fields of an existing event in a Google Calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar_id` and `event_id` are valid and the user has write access to the calendar. |
| `GOOGLECALENDAR_QUICK_ADD` | Quick Add Event | Parses natural language text to quickly create a basic Google Calendar event with its title, date, and time, suitable for simple scheduling; does not support direct attendee addition or recurring events, and `calendar_id` must be valid if not 'primary'. |
| `GOOGLECALENDAR_REMOVE_ATTENDEE` | Remove attendee from event | Removes an attendee from a specified event in a Google Calendar; the calendar and event must exist. Concurrent calls on the same event can overwrite attendee lists — apply changes sequentially per event. |
| `GOOGLECALENDAR_SETTINGS_GET` | Get Calendar Setting | Tool to return a single user setting for the authenticated user. Use when you need to retrieve a specific calendar setting value. |
| `GOOGLECALENDAR_SETTINGS_LIST` | List Settings | Returns all user settings for the authenticated user. Results include multiple settings keyed by id (e.g., `timeZone`); locate a specific setting by its `id` field. `timeZone` values are IANA identifiers (e.g., `America/New_York`) — use directly in datetime and event logic; align with `timeZone` from GOOGLECALENDAR_GET_CALENDAR for consistent notification times. |
| `GOOGLECALENDAR_SETTINGS_WATCH` | Watch Settings | Watch for changes to Settings resources. |
| `GOOGLECALENDAR_UPDATE_EVENT` | Update Google event | Updates an existing event in Google Calendar. REQUIRES event_id - you MUST first search for the event using GOOGLECALENDAR_FIND_EVENT or GOOGLECALENDAR_EVENTS_LIST to obtain the event_id. This is a full PUT replacement: omitted fields (including attendees, reminders, recurrence, conferencing) are cleared. Always provide the complete desired event state. Use GOOGLECALENDAR_PATCH_EVENT instead for partial edits. |

## Supported Triggers

| Trigger slug | Name | Description |
|---|---|---|
| `GOOGLECALENDAR_ATTENDEE_RESPONSE_CHANGED_TRIGGER` | Attendee Response Changed | Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status. |
| `GOOGLECALENDAR_EVENT_CANCELED_DELETED_TRIGGER` | Event Canceled or Deleted | Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp. |
| `GOOGLECALENDAR_EVENT_STARTING_SOON_TRIGGER` | Event Starting Soon | Triggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available. |
| `GOOGLECALENDAR_GOOGLE_CALENDAR_EVENT_CHANGE_TRIGGER` | Calendar Event Changes | **SOON TO BE DEPRECATED** - Use Calendar Event Sync (polling trigger) instead. Real-time webhook trigger for calendar event changes. Returns event metadata only. For full event data, use Calendar Event Sync (polling trigger). |
| `GOOGLECALENDAR_GOOGLE_CALENDAR_EVENT_CREATED_TRIGGER` | Event Created | Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info. |
| `GOOGLECALENDAR_GOOGLE_CALENDAR_EVENT_SYNC_TRIGGER` | Calendar Event Sync | Polling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook). |
| `GOOGLECALENDAR_GOOGLE_CALENDAR_EVENT_UPDATED_TRIGGER` | Event Updated | Triggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values. |

## Creating MCP Server - Stand-alone vs Composio SDK

The Google Calendar MCP server is an implementation of the Model Context Protocol that connects your AI agent to Google Calendar. It provides structured and secure access so your agent can perform Google Calendar operations on your behalf through a secure, permission-based interface.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before starting, make sure you have:
- Composio API Key and Claude/Anthropic API Key
- Primary know-how of Claude Agents SDK
- A Google Calendar account
- Some knowledge of Python

### 1. Getting API Keys for Claude/Anthropic and Composio

Claude/Anthropic API Key
- Go to the [Anthropic Console](https://console.anthropic.com/settings/organization/api-keys) and create an API key. You'll need credits to use the models.
- Keep the API key safe.
Composio API Key
- Log in to the [Composio dashboard](https://dashboard.composio.dev?utm_source=toolkits&utm_medium=framework_docs).
- Navigate to your API settings and generate a new API key.
- Store this key securely as you'll need it for authentication.

### 2. Install dependencies

No description provided.
```python
pip install composio-anthropic claude-agent-sdk python-dotenv
```

```typescript
npm install @anthropic-ai/claude-agent-sdk @composio/core dotenv
```

### 3. Set up environment variables

Create a .env file in your project root.
What's happening:
- COMPOSIO_API_KEY authenticates with Composio
- USER_ID identifies the user for session management
- ANTHROPIC_API_KEY authenticates with Anthropic/Claude
```bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
ANTHROPIC_API_KEY=your_anthropic_api_key_here
```

### 4. Import dependencies

No description provided.
```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

dotenv.config();
```

### 5. Create a Composio instance and Tool Router session

No description provided.
```python
async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Google Calendar
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["googlecalendar"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")
```

```typescript
async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });

  // Create Tool Router session for Google Calendar
  const session = await composio.create(USER_ID, {
    toolkits: ['googlecalendar'],
  });
  const mcpUrl = session?.mcp.url;
```

### 6. Configure Claude Agent with MCP

No description provided.
```python
# Configure remote MCP server for Claude
options = ClaudeAgentOptions(
    permission_mode="bypassPermissions",
    mcp_servers={
        "composio": {
            "type": "http",
            "url": url,
            "headers": {
                "x-api-key": os.getenv("COMPOSIO_API_KEY")
            }
        }
    },
    system_prompt="You are a helpful assistant with access to Google Calendar tools via Composio.",
    max_turns=10
)
```

```typescript
const options: Options = {
  permissionMode: 'bypassPermissions',
  mcpServers: {
    composio: {
      type: 'http',
      url: mcpUrl,
      headers: { 'x-api-key': COMPOSIO_API_KEY }
    }
  },
  systemPrompt: 'You are a helpful assistant with access to Google Calendar tools via Composio.',
  maxTurns: 10,
};
```

### 7. Create client and start chat loop

No description provided.
```python
# Create client with context manager
async with ClaudeSDKClient(options=options) as client:
    print("\nChat started. Type 'exit' or 'quit' to end.\n")

    # Main chat loop
    while True:
        user_input = input("You: ").strip()
        if user_input.lower() in {"exit", "quit"}:
            print("Goodbye!")
            break

        # Send query
        await client.query(user_input)

        # Receive and print response
        print("Claude: ", end="", flush=True)
        async for message in client.receive_response():
            if hasattr(message, "content"):
                for block in message.content:
                    if hasattr(block, "text"):
                        print(block.text, end="", flush=True)
        print()
```

```typescript
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}
```

### 8. Run the application

No description provided.
```python
if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Complete Code

```python
import asyncio
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

async def chat_with_remote_mcp():
    api_key = os.getenv("COMPOSIO_API_KEY")
    if not api_key:
        raise RuntimeError("COMPOSIO_API_KEY is not set")

    composio = Composio(api_key=api_key)

    # Create Tool Router session for Google Calendar
    mcp_server = composio.create(
        user_id=os.getenv("USER_ID"),
        toolkits=["googlecalendar"]
    )

    url = mcp_server.mcp.url

    if not url:
        raise ValueError("Session URL not found")

    # Configure remote MCP server for Claude
    options = ClaudeAgentOptions(
        permission_mode="bypassPermissions",
        mcp_servers={
            "composio": {
                "type": "http",
                "url": url,
                "headers": {
                    "x-api-key": os.getenv("COMPOSIO_API_KEY")
                }
            }
        },
        system_prompt="You are a helpful assistant with access to Google Calendar tools via Composio.",
        max_turns=10
    )

    # Create client with context manager
    async with ClaudeSDKClient(options=options) as client:
        print("\nChat started. Type 'exit' or 'quit' to end.\n")

        # Main chat loop
        while True:
            user_input = input("You: ").strip()
            if user_input.lower() in {"exit", "quit"}:
                print("Goodbye!")
                break

            # Send query
            await client.query(user_input)

            # Receive and print response
            print("Claude: ", end="", flush=True)
            async for message in client.receive_response():
                if hasattr(message, "content"):
                    for block in message.content:
                        if hasattr(block, "text"):
                            print(block.text, end="", flush=True)
            print()

if __name__ == "__main__":
    asyncio.run(chat_with_remote_mcp())
```

```typescript
import 'dotenv/config';
import readline from 'node:readline';
import { Composio } from '@composio/core';
import { query, type Options } from "@anthropic-ai/claude-agent-sdk";

async function chat() {
  const { COMPOSIO_API_KEY, USER_ID } = process.env;
  if (!COMPOSIO_API_KEY || !USER_ID) {
    throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
  }

  const composio = new Composio({ apiKey: COMPOSIO_API_KEY });
  const session = await composio.create(USER_ID, {
    toolkits: ['googlecalendar']
  });
  const mcp_url = session?.mcp.url;

  const options: Options = {
    permissionMode: 'bypassPermissions',
    mcpServers: {
      composio: {
        type: 'http',
        url: mcp_url,
        headers: { 'x-api-key': COMPOSIO_API_KEY }
      }
    },
    systemPrompt: 'You are a helpful assistant with access to Google Calendar tools via Composio.',
    maxTurns: 10,
  };

  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
    prompt: 'You: '
  });

  console.log('\nChat started. Type "exit" to quit.\n');

  let isProcessing = false;

  async function ask(prompt: string) {
    isProcessing = true;
    rl.pause();

    process.stdout.write('Claude is thinking...');
    const stream = query({ prompt, options });

    let firstChunk = true;
    for await (const msg of stream) {
      const content = (msg as any).message?.content || (msg as any).content;
      if (Array.isArray(content)) {
        for (const block of content) {
          if (block.type === 'text' && block.text) {
            if (firstChunk) {
              process.stdout.write('\r\x1b[K');
              process.stdout.write('Claude: ');
              firstChunk = false;
            }
            process.stdout.write(block.text);
          }
        }
      }
    }
    process.stdout.write('\n\n');

    isProcessing = false;
    rl.resume();
    rl.prompt();
  }

  rl.on('line', async (line) => {
    if (isProcessing) return;

    const input = line.trim();
    if (input === 'exit') {
      rl.close();
      process.exit(0);
    }
    if (input) await ask(input);
    else rl.prompt();
  });

  await ask('What can you help me with?');
}

try {
  await chat();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

## Conclusion

You've successfully built a Claude Agent SDK agent that can interact with Google Calendar through Composio's Tool Router.
Key features:
- Native MCP support through Claude's agent framework
- Streaming responses for real-time interaction
- Permission bypass for smooth automated workflows
You can extend this by adding more toolkits, implementing custom business logic, or building a web interface around the agent.

## How to build Google Calendar MCP Agent with another framework

- [ChatGPT](https://composio.dev/toolkits/googlecalendar/framework/chatgpt)
- [OpenAI Agents SDK](https://composio.dev/toolkits/googlecalendar/framework/open-ai-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/googlecalendar/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/googlecalendar/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/googlecalendar/framework/codex)
- [Cursor](https://composio.dev/toolkits/googlecalendar/framework/cursor)
- [VS Code](https://composio.dev/toolkits/googlecalendar/framework/vscode)
- [OpenCode](https://composio.dev/toolkits/googlecalendar/framework/opencode)
- [OpenClaw](https://composio.dev/toolkits/googlecalendar/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/googlecalendar/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/googlecalendar/framework/cli)
- [Google ADK](https://composio.dev/toolkits/googlecalendar/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/googlecalendar/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/googlecalendar/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/googlecalendar/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/googlecalendar/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/googlecalendar/framework/crew-ai)

## Related Toolkits

- [Apaleo](https://composio.dev/toolkits/apaleo) - Apaleo is a cloud-based property management platform for hospitality businesses. It centralizes reservations, billing, and daily operations for smoother hotel management.
- [Appointo](https://composio.dev/toolkits/appointo) - Appointo is an appointment booking platform for Shopify stores. It lets businesses add online scheduling to their websites with zero coding.
- [Bart](https://composio.dev/toolkits/bart) - Bart is the Bay Area Rapid Transit system, providing fast public transportation across the San Francisco Bay Area. It helps commuters and travelers get real-time schedule info, plan routes, and stay updated on service changes.
- [Bookingmood](https://composio.dev/toolkits/bookingmood) - Bookingmood is commission-free booking software for rental businesses. It lets you manage reservations and sync bookings directly on your website.
- [Booqable](https://composio.dev/toolkits/booqable) - Booqable is a rental software platform for managing inventory, bookings, and reservations. It helps businesses streamline rentals and keep track of every item with ease.
- [Cal](https://composio.dev/toolkits/cal) - Cal is a meeting scheduling platform that offers shareable booking links and real-time calendar syncing. It streamlines the process of finding mutual availability to make scheduling effortless.
- [Calendarhero](https://composio.dev/toolkits/calendarhero) - Calendarhero is a powerful scheduling platform that streamlines your calendar management across multiple services. It helps you efficiently schedule, reschedule, and organize meetings without the back-and-forth.
- [Calendly](https://composio.dev/toolkits/calendly) - Calendly is an appointment scheduling tool that automates meeting invitations, availability checks, and reminders. It helps individuals and teams avoid endless email back-and-forth when booking meetings.
- [Etermin](https://composio.dev/toolkits/etermin) - eTermin is an online appointment scheduling platform for businesses to manage bookings. It streamlines client appointments, saving time and reducing scheduling conflicts.
- [Evenium](https://composio.dev/toolkits/evenium) - Evenium is an all-in-one platform for managing professional events, from planning to analysis. It helps teams simplify event logistics, boost engagement, and track every detail in one place.
- [Eventee](https://composio.dev/toolkits/eventee) - Eventee is a user-friendly event management platform for mobile and web. It boosts attendee engagement for in-person, virtual, and hybrid events.
- [Eventzilla](https://composio.dev/toolkits/eventzilla) - Eventzilla is an event management platform for creating, promoting, and running events. It streamlines ticketing, registration, and attendee coordination for organizers.
- [Humanitix](https://composio.dev/toolkits/humanitix) - Humanitix is a not-for-profit ticketing platform that donates 100% of profits to charity. It empowers event organizers to make social impact with every ticket sold.
- [Lodgify](https://composio.dev/toolkits/lodgify) - Lodgify is an all-in-one vacation rental software for property managers and owners. It centralizes bookings, guest messaging, and channel synchronization in one dashboard.
- [Planyo Online Booking](https://composio.dev/toolkits/planyo_online_booking) - Planyo Online Booking is a flexible reservation system for managing bookings by day, hour, or event. It streamlines scheduling for any business needing reservations.
- [Scheduleonce](https://composio.dev/toolkits/scheduleonce) - Scheduleonce is a scheduling platform for capturing, qualifying, and engaging with inbound leads. It streamlines appointment booking and follow-ups for faster lead conversion.
- [Supersaas](https://composio.dev/toolkits/supersaas) - Supersaas is a flexible appointment scheduling platform for businesses and individuals. It streamlines bookings, reminders, and calendar management in one place.
- [Sympla](https://composio.dev/toolkits/sympla) - Sympla is a platform for managing in-person and online events, ticket sales, and registrations. It streamlines event setup, attendee tracking, and digital content delivery.
- [Gmail](https://composio.dev/toolkits/gmail) - Gmail is Google's email service with powerful spam protection, search, and G Suite integration. It keeps your inbox organized and makes communication fast and reliable.
- [Google Drive](https://composio.dev/toolkits/googledrive) - Google Drive is a cloud storage platform for uploading, sharing, and collaborating on files. It's perfect for keeping your documents accessible and organized across devices.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Google Calendar MCP?

With a standalone Google Calendar MCP server, the agents and LLMs can only access a fixed set of Google Calendar tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Google Calendar and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Agent SDK?

Yes, you can. Claude Agent SDK fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Google Calendar tools.

### Can I manage the permissions and scopes for Google Calendar while using Tool Router?

Yes, absolutely. You can configure which Google Calendar scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Google Calendar data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)