AI Native Calendarhero Integration
- Supports both Calendarhero MCP and direct API based integrations
- Structured, LLM-friendly schemas for reliable tool execution
- Rich coverage for reading, writing, and querying your Calendarhero data
Calendarhero MCP server for AI agents and assistants
Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Calendarhero MCP or direct API to schedule meetings, fetch availability, reschedule events, and automate reminders through natural language.
Api Key
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.
38 Tools
Try Calendarhero now
Type what you want done — sign in and watch it run live in the Tool Router playground.
TOOL ROUTER PLAYGROUND
Calendarhero
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TOOLS
Supported Tools
Every Calendarhero action and event your agent gets out of the box.
SETUP GUIDE
Connect Calendarhero MCP Tool with your Agent
1
Install Composio
typescript
npm install @composio/core ai @ai-sdk/openai @ai-sdk/mcpInstall the Composio SDK and Claude Agent SDK
2
Create Tool Router Session
typescript
import { Composio } from '@composio/core';
const composio = new Composio({ apiKey: 'your-api-key' });
console.log("Creating Tool Router session...");
const { mcp } = await composio.create('your-user-id');
console.log(`Tool Router session created: ${mcp.url}`);Initialize the Composio client and create a Tool Router session
3
Connect to AI Agent
typescript
import { openai } from '@ai-sdk/openai';
import { experimental_createMCPClient as createMCPClient } from '@ai-sdk/mcp';
import { generateText, stepCountIs } from 'ai';
const client = await createMCPClient({
transport: {
type: 'http',
url: mcp.url,
headers: { 'x-api-key': 'your-composio-api-key' }
}
});
const tools = await client.tools();
const { text } = await generateText({
model: openai('gpt-4o'),
tools,
messages: [{ role: 'user', content: 'Schedule a meeting with Jane Doe for next Monday at 10am' }],
stopWhen: stepCountIs( 5 )
});
console.log(`Agent: ${text}`);Use the MCP server with your AI agent
SETUP GUIDE
Connect Calendarhero API Tool with your Agent
1
Install Composio
typescript
npm install @composio/openaiInstall the Composio SDK
2
Initialize Composio and Create Tool Router Session
typescript
import OpenAI from 'openai';
import { Composio } from '@composio/core';
import { OpenAIResponsesProvider } from '@composio/openai';
const composio = new Composio({
provider: new OpenAIResponsesProvider(),
});
const openai = new OpenAI({});
const session = await composio.create('your-user-id');Import and initialize Composio client, then create a Tool Router session
3
Execute Calendarhero Tools via Tool Router with Your Agent
typescript
const tools = session.tools;
const response = await openai.responses.create({
model: 'gpt-4.1',
tools: tools,
input: [{
role: 'user',
content: 'Schedule a 30-minute meeting with Alex next Tuesday at 10am.'
}],
});
const result = await composio.provider.handleToolCalls(
'your-user-id',
response.output
);
console.log(result);Get tools from Tool Router session and execute Calendarhero actions with your Agent
Why Use Composio?
Managed Auth
- Built-in OAuth handling with automatic token refresh and rotation
- Central place to manage, scope, and revoke Calendarhero access
- Per user and per environment credentials instead of hard-coded keys
Agent Optimized Design
- Tools are tuned using real error and success rates to improve reliability over time
- Comprehensive execution logs so you always know what ran, when, and on whose behalf
Enterprise Grade Security
- Fine-grained RBAC so you control which agents and users can access Calendarhero
- Scoped, least privilege access to Calendarhero resources
- Full audit trail of agent actions to support review and compliance
FRAMEWORKS
Use Calendarhero with any AI Agent Framework
Choose a Framework you want to connect Calendarhero with
Claude Code
Use Calendarhero MCP with Claude Code
Claude Cowork
Use Calendarhero MCP with Claude Cowork
OpenAI Agents SDK
Use Calendarhero MCP with OpenAI Agents SDK
Claude Agents SDK
Use Calendarhero MCP with Claude Agents SDK
Codex
Use Calendarhero MCP with Codex
OpenClaw
Use Calendarhero MCP with OpenClaw
Hermes
Use Calendarhero MCP with Hermes
Atomic Agent
Use Calendarhero MCP with Atomic Agent
Google ADK
Use Calendarhero MCP with Google ADK
Langchain
Use Calendarhero MCP with Langchain
AI SDK
Use Calendarhero MCP with AI SDK
Mastra AI
Use Calendarhero MCP with Mastra AI
LlamaIndex
Use Calendarhero MCP with LlamaIndex
CrewAI
Use Calendarhero MCP with CrewAI
Pydantic AI
Use Calendarhero MCP with Pydantic AI
Autogen
Use Calendarhero MCP with Autogen
Rolling this out across your team?
Give your team centralized access control across every framework with Composio’s MCP Gateway.
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FAQ
Frequently asked questions
Yes, Calendarhero requires you to configure your own API key credentials. Once set up, Composio handles secure credential storage and API request handling for you.
Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.
Yes. Composio is SOC 2 Type II compliant and is built to keep your Calendarhero connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.
Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.
Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.
Create the key in your Calendarhero account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Calendarhero actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Calendarhero at any time.
When you connect a Calendarhero account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Calendarhero as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.
Whatever the credentials you connect allow inside Calendarhero. If Calendarhero lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Calendarhero at any time.
Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Calendarhero connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.
The connection stops working the moment Calendarhero rejects the old key. Create a new key in Calendarhero and reconnect the account from the Composio dashboard or by asking your agent to reconnect Calendarhero. Nothing else changes.
Composio's free plan includes 100,000 tool calls per month with no credit card, which covers most personal Calendarhero use. Paid plans add higher limits and team features. Your Calendarhero plan and its API limits still apply as usual.
Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Calendarhero accounts).
With Composio, you connect Calendarhero once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.
Start with Calendarhero.It takes 30 seconds.
Managed auth, hosted MCP servers, and every Calendarhero tool your agent needs.Free to start.
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