# How to integrate Evenium MCP with Atomic Agent

```json
{
  "title": "How to integrate Evenium MCP with Atomic Agent",
  "toolkit": "Evenium",
  "toolkit_slug": "evenium",
  "framework": "Atomic Agent",
  "framework_slug": "atomic-agent",
  "url": "https://composio.dev/toolkits/evenium/framework/atomic-agent",
  "markdown_url": "https://composio.dev/toolkits/evenium/framework/atomic-agent.md",
  "updated_at": "2026-08-11T13:09:17.559Z"
}
```

## Introduction

Atomic Agent is an open-source AI agent that runs on your machine and supports local models through llama.cpp. Connect it to 1,500+ apps through Composio, including Evenium.
This guide uses Atomic Agent's built-in Composio integration. You need Atomic Agent v0.5.6 or later, your own Composio API key, and a Evenium account. See the [Atomic Agent documentation](https://atomicagent.io/docs/?cta_placement=atomic-agent-docs) for installation instructions.

## Also integrate Evenium with

- [OpenAI Agents SDK](https://composio.dev/toolkits/evenium/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/evenium/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/evenium/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/evenium/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/evenium/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/evenium/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/evenium/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/evenium/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/evenium/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/evenium/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/evenium/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/evenium/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/evenium/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/evenium/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/evenium/framework/autogen)

## TL;DR

### How Atomic Agent connects to Evenium
Atomic Agent connects to Composio's Tool Router over Streamable HTTP MCP. It discovers the tools needed for your request, and Composio handles account authentication.
Execution and account-connection tools follow Atomic Agent's configured approval policy. Review any approval prompt before allowing an action on your connected account.

## Connect Evenium to Atomic Agent

### Connect Evenium to Atomic Agent
- Sign up or sign in to the [Composio dashboard](https://dashboard.composio.dev/?cta_placement=atomic-agent-api-key). Copy your API key.
- In Atomic Agent, open the Integrations tab and select Composio. Select API key, press e, paste the key, and press Enter. The tools become available immediately, without a restart.
- Ask Atomic Agent to do something in Evenium. It searches Composio for the right tool.
- On first use, open the sign-in link returned in the chat. Connect your Evenium account, then return to Atomic Agent to continue.
### Headless setup
Add the following line to ~/.atomic-agent/.env, replacing YOUR_COMPOSIO_API_KEY with your key. Start Atomic Agent after saving the file.

```bash
COMPOSIO_API_KEY=YOUR_COMPOSIO_API_KEY
```

## What is the Evenium MCP server, 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.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `EVENIUM_CREATE_CONTACT` | Create Contact | Tool to create a new contact in the Evenium address book. Use when you need to add a new contact with basic information (name, email, company) and optional custom fields. |
| `EVENIUM_DELETE_CONTACT` | Delete Contact | Tool to permanently remove a contact from the Evenium address book. Use when you need to delete a contact by their ID. WARNING: This operation is irreversible and deletes all associated guests in cascade. |
| `EVENIUM_GET_CONTACT` | Get Contact | Tool to retrieve a single contact by ID from Evenium. Use when you need to fetch details for a specific contact using either Evenium internal ID or custom external ID. |
| `EVENIUM_GET_CONTACT_BY_CUSTOM_ID` | Get Contact by Custom ID | Tool to retrieve a specific contact from Evenium by their custom ID (external database ID). Use when you need to look up a contact using an identifier from your own CRM or database system. |
| `EVENIUM_GET_CONTACT_EVENTS` | Get Contact Events | Tool to retrieve all events that a contact has been invited to or registered for. Use when you need to see a contact's event history with registration details. |
| `EVENIUM_GET_CONTACT_EVENTS_BY_CUSTOM_ID` | Get Contact Events by Custom ID | Retrieves all events a contact has been invited to using their custom ID. Use this when you need to find all events associated with a specific contact identified by a custom ID from your database. |
| `EVENIUM_GET_CONTACTS` | Get Contacts | Tool to retrieve a list of contacts from Evenium. Use when you need to fetch and optionally filter organizer contacts. |
| `EVENIUM_GET_EVENTS` | Get Events | Retrieves a paginated list of events from Evenium with optional filtering and sorting. Use this to list all events or search for specific events by title, code, or location. Supports pagination via start/limit parameters and sorting via sort/direction parameters. By default, returns active events only; use filter flags to include archived, deleted, or draft events. |
| `EVENIUM_IMPORT_CONTACTS` | Import Contacts | Tool to import multiple contacts at once (batch import). Creates new contacts or updates existing ones based on customId or email matching. Use when you need to bulk create or update contacts in Evenium. |
| `EVENIUM_LOGOUT` | Logout | Tool to log out the current user and invalidate the session token. Use when you need to explicitly end the current session. |
| `EVENIUM_UPDATE_CONTACT` | Update Contact | Tool to update an existing contact in Evenium by contact ID. Use when you need to modify contact details such as email, name, company, or custom fields. |
| `EVENIUM_UPDATE_CONTACT_BY_CUSTOM_ID` | Update Contact by Custom ID | Tool to update a contact in Evenium by custom ID (external ID from your CRM/database). Use when you need to update contact details using your own identifier rather than Evenium's internal ID. |

## Supported Triggers

None listed.

## Troubleshooting

### Why is my API key rejected?

Copy the key directly from the Composio dashboard. Atomic Agent requires ASCII characters because it sends the key in an HTTP header. Remove any extra characters introduced when copying.

### Why are Composio tools unavailable after saving a key?

Check that you use Atomic Agent v0.5.6 or later and that Composio is enabled in your configuration. A "composio": { "enabled": false } setting disables the integration while keeping the saved key on disk.

### Does Composio have a free plan?

The Hobby plan includes 100,000 tool calls per month. Composio-managed OAuth apps have a lower included allowance. See [Composio pricing](/pricing) for the current limits that apply to your connection.

## Complete Code

None listed.

## Conclusion

### Use Evenium from Atomic Agent
With your account connected, ask Atomic Agent to work with Evenium in natural language. You can connect more apps through the same Composio integration as you need them.
Visit the [Atomic Agent website](https://atomicagent.io/?cta_placement=atomic-agent-site) or inspect the [Atomic Agent source code](https://github.com/AtomicBot-ai/atomic-agent?cta_placement=atomic-agent-repo).

## How to build Evenium MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/evenium/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/evenium/framework/claude-agents-sdk)
- [Claude Code](https://composio.dev/toolkits/evenium/framework/claude-code)
- [Claude Cowork](https://composio.dev/toolkits/evenium/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/evenium/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/evenium/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/evenium/framework/hermes-agent)
- [Google ADK](https://composio.dev/toolkits/evenium/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/evenium/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/evenium/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/evenium/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/evenium/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/evenium/framework/crew-ai)
- [Pydantic AI](https://composio.dev/toolkits/evenium/framework/pydantic-ai)
- [AutoGen](https://composio.dev/toolkits/evenium/framework/autogen)

## Related Toolkits

- [Google Calendar](https://composio.dev/toolkits/googlecalendar) - Google Calendar is a time management service for scheduling meetings, events, and reminders. It streamlines personal and team organization with integrated notifications and sharing options.
- [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.
- [Blue Pillow Hotels & Stays](https://composio.dev/toolkits/bluepillow) - Blue Pillow Hotels & Stays is a hotel and stay discovery platform offering live offers, recommendations, and booking handoff. It helps surface and compare real-time deals and validate bookings for smoother reservations.
- [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.
- [Calendly MCP](https://composio.dev/toolkits/calendly_mcp) - Calendly is an appointment scheduling platform that manages event types, availability, and invites. Use it to automate booking, reduce back-and-forth, and surface open times quickly.
- [Check Cherry](https://composio.dev/toolkits/check_cherry) - Check Cherry is a business management platform for photography and event service companies. It helps teams manage leads, bookings, appointments, offerings, payments, and workflows in one place.
- [Cronfree Time Scheduler](https://composio.dev/toolkits/cronfree_time_scheduler) - Cronfree Time Scheduler is an API-based scheduler for recurring webhook calls. Use it to create and remove timezone-aware schedules without running cron.
- [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.
- [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.
- [GoTable](https://composio.dev/toolkits/go_table) - GoTable is a restaurant management REST API for reservations, tables, guests, offers, availability, and webhooks. Use it to programmatically manage bookings, guest data, offers, and table availability.
- [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.
- [Ignav Flights](https://composio.dev/toolkits/ignav_flights) - Ignav Flights is a flight search API for airports, fares, itineraries, and booking links. It helps apps compare routes and prices fast, so travelers can find practical options sooner.
- [Jinko](https://composio.dev/toolkits/jinko) - Jinko is a travel API platform offering flight and hotel discovery, trip management, ancillaries, and hosted checkout. Use it to unify search, reservations, ancillaries, and hosted checkout into a single travel API.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Evenium MCP?

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.

### Can I use Tool Router MCP with Atomic Agent?

Yes, you can. Atomic Agent 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.

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

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.

### 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 Evenium data and credentials are handled as safely as possible.

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