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How to connect Evenium to Claude

Connect Claude Web, Desktop and Cowork to Evenium MCP. List all upcoming events for this month, find contacts for our annual conference, and more using natural language, with authentication handled for you.

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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.

12 Tools

Introduction

Claude is Anthropic's AI assistant, available on the web, in the desktop app, and on mobile. Cowork is its agent for knowledge work, and it runs on all of those surfaces too. Connected to your apps, Claude can work with your files and services to accomplish complex tasks on your behalf.

This guide walks you through the easiest and most secure way to connect your Evenium account to Claude via Composio Connect, enabling it to list all upcoming events for this month, find contacts for our annual conference, show all past events I organized, and more such actions on your behalf without compromising your account security.

Setup is the same on Claude Web, Desktop, and Cowork, and you only need to do it once. The connector is tied to your account, so it's available in all three.

Also integrate Evenium with

Claude CodeOpenAI Agents SDKClaude Agent SDKCodexOpenClawHermesAtomic AgentGoogle ADKLangChainVercel AI SDKMastra AILlamaIndexCrewAIPydantic AIAutoGen

Connecting Evenium to Claude Web, Desktop, and Cowork

Two ways to add the Composio connector. Pick whichever you prefer.

1. Add with one click

Click the button. Claude opens with the Composio connector filled in. Click Add, then go to step 2.

Add to Claude

Add manually

In Claude Desktop, click Customize in the left sidebar, then select Connectors and click the + icon at the top.

Claude Desktop connectors screen with Add custom connector selected

Click Add custom connector and paste in the Composio MCP server URL:

bash
https://connect.composio.dev/mcp
Add custom connector dialog with Composio MCP server URL

2. Authorize in your browser

Click Connect. You'll be redirected to a browser window where you can authorize Composio to continue.

Composio authorization screen for Claude Web, Desktop, and Cowork

3. Connect your Evenium account

Back in Claude, ask it to connect to Evenium or give it any Evenium-related task.

For example, ask Claude to:

  • "List all upcoming events for this month"
  • "Find contacts for our annual conference"
  • "Show all past events I organized"

It will prompt you to authenticate and authorize access.

That's it. Composio's tools are now available in Claude, and your Evenium account is ready to use.

What is the Evenium Claude Connector, and what's possible with it?

The Evenium MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Evenium account. It provides structured and secure access to your event management data, so your agent can retrieve event details, pull contacts, and manage user sessions on your behalf.

  • Event listing and retrieval: Quickly fetch a comprehensive list of your upcoming or past events, with optional filters for targeted searches.
  • Contact management: Effortlessly pull organizer and attendee contact lists to streamline outreach and follow-ups for your events.
  • Session management and logout: Direct your agent to explicitly log out and invalidate sessions, ensuring enhanced security after event tasks are completed.
  • Automated event insights: Use AI-powered assistants to analyze and summarize event data, helping you stay organized and make informed decisions.

Troubleshooting

1. Why does Claude not use the Composio connector for Evenium?

The connector can show as connected, but Claude must use it in each Evenium conversation.

  • Click + at the lower left of the chat, or type /.
  • Hover Connectors.
  • Turn on Composio.
  • Ask Claude to connect to Evenium again.

2. Why does Claude show an MCP server error before Evenium connects?

Claude can show Couldn't reach the MCP server or Authorization with the MCP server failed when you add the connector for Evenium.

  • Check that the connector URL is https://connect.composio.dev/mcp.
  • Connectors run from Anthropic's cloud, so your device network is usually not the problem.
  • Add the connector again from Customize > Connectors, then ask Claude to connect Evenium.
  • If it fails again, send the error and the ofid_ reference id to support@composio.dev.

3. Why does the Evenium authorization link not work?

The Composio connector is one server. Your Evenium account connects separately when Claude asks for it.

  • If the browser does not open, or the link expires, ask Claude to retry the Evenium connection.
  • Composio creates a fresh Evenium authorization link.
  • Open that link in your browser and finish the Evenium sign-in.

4. Why do Evenium actions fail after they worked before?

The Evenium connection can expire or lose permission.

  • Ask Claude to inspect the Evenium connection.
  • If the connection is unhealthy, disconnect it when Claude prompts you.
  • Reconnect the Evenium account and retry the action.
  • If Claude shows a permission prompt, approve it before Claude changes data in Evenium.
  • If the action still fails with a permission error, check that the connected account has that permission in Evenium itself.

5. How do I switch to a different Evenium account?

Claude can manage the Evenium connection for you.

  • Ask Claude to disconnect or delete the current Evenium account.
  • Ask Claude to connect Evenium again.
  • Open the new Composio authorization link for Evenium.
  • Sign in with the other Evenium account in the browser.
  • After the account connects, ask Claude to retry the Evenium task.

6. Why is my Evenium connection missing in Claude Desktop or on a Team plan?

The connector belongs to your Claude account, so your Evenium connection works in Claude Web, Desktop, and Cowork.

  • In Claude Desktop, open Customize > Connectors.
  • Next to Composio, click ⋮ and click Clear cache.
  • If Evenium tools still do not appear, click ⋮, disconnect, remove the connector, and add it again.
  • On Team or Enterprise, an Owner or Primary Owner must enable the connector before you can connect Evenium.
TOOLS

Supported Tools

Every Evenium action and event your agent gets out of the box.

Create Contact

Tool to create a new contact in the Evenium address book.

Delete Contact

Tool to permanently remove a contact from the Evenium address book.

Get Contact

Tool to retrieve a single contact by ID from Evenium.

Get Contact by Custom ID

Tool to retrieve a specific contact from Evenium by their custom ID (external database ID).

Get Contact Events

Tool to retrieve all events that a contact has been invited to or registered for.

Get Contact Events by Custom ID

Retrieves all events a contact has been invited to using their custom ID.

Get Contacts

Tool to retrieve a list of contacts from Evenium.

Get Events

Retrieves a paginated list of events from Evenium with optional filtering and sorting.

Import Contacts

Tool to import multiple contacts at once (batch import).

Logout

Tool to log out the current user and invalidate the session token.

Update Contact

Tool to update an existing contact in Evenium by contact ID.

Update Contact by Custom ID

Tool to update a contact in Evenium by custom ID (external ID from your CRM/database).

FRAMEWORKS

How to build Evenium MCP Agent with another framework

Claude Code logo

Claude Code

Use Evenium MCP with Claude Code

OpenAI Agents SDK logo

OpenAI Agents SDK

Use Evenium MCP with OpenAI Agents SDK

Claude Agent SDK logo

Claude Agent SDK

Use Evenium MCP with Claude Agent SDK

Codex logo

Codex

Use Evenium MCP with Codex

OpenClaw logo

OpenClaw

Use Evenium MCP with OpenClaw

Hermes logo

Hermes

Use Evenium MCP with Hermes

Atomic Agent logo

Atomic Agent

Use Evenium MCP with Atomic Agent

Google ADK logo

Google ADK

Use Evenium MCP with Google ADK

LangChain logo

LangChain

Use Evenium MCP with LangChain

Vercel AI SDK logo

Vercel AI SDK

Use Evenium MCP with Vercel AI SDK

Mastra AI logo

Mastra AI

Use Evenium MCP with Mastra AI

LlamaIndex logo

LlamaIndex

Use Evenium MCP with LlamaIndex

CrewAI logo

CrewAI

Use Evenium MCP with CrewAI

Pydantic AI logo

Pydantic AI

Use Evenium MCP with Pydantic AI

AutoGen logo

AutoGen

Use Evenium MCP with AutoGen

FAQ

Frequently asked questions

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

Yes, you can. Claude Cowork 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 Evenium tools.

Yes, absolutely. You can configure which Evenium 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.

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 Evenium data and credentials are handled as safely as possible.

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